THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM(for Entry Function): SYSTEM DESCRIPTION; 2016 - 2020 MY Sienna [12/2015

Last Modified: 04-05-2023	6.11:8.1.0	Doc ID: RM100000000VJJZ
Model Year Start: 2016	Model: Sienna	Prod Date Range: [12/2015 - ]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM(for Entry Function): SYSTEM DESCRIPTION; 2016 - 2020 MY Sienna [12/2015 - ]

SYSTEM DESCRIPTION

CAUTION:

If using a pacemaker, be sure to read the manual of the pacemaker before using the key, as the radio waves of the key may affect the pacemaker.

1. SMART KEY SYSTEM DESCRIPTION

(a) In addition to conventional mechanical key and wireless door lock control functions, the smart key system enables door locking/unlocking, steering lock releasing and engine starting without operating the key. The only requirement is that the key is in the user's possession.

This system is controlled by the certification ECU. When the certification ECU detects the presence of the smart key system in one of the detection areas, it identifies and checks the ID code, and outputs operation signals to the related ECU in accordance with their functions.
The detection areas are formed by 6 oscillators (2 door oscillators, 1 outside oscillator and 3 indoor oscillators).

2. DETECTION AREA

Text in Illustration

*1	Indoor Electrical Key Oscillator Assembly (for Front Floor)	*2	Electrical Key Antenna
*3	Indoor Electrical Key Oscillator Assembly (for Center Floor)	*4	Indoor Electrical Key Oscillator Assembly (for Rear Floor)
*5	Outside Electrical Key Oscillator (for Rear Side)	-	-
*a	Approximately 0.7 to 1.0 m (2.30 to 3.28 ft.)	-	-
	Interior Detection Area		Exterior Detection Area

(a) Precautions for the entire system:

Be sure to carry the key during inspection of the smart key system.
As weak radio waves are used to detect the key, the key detection area may decrease, or the key may not be detected correctly in the following situations:
1. The key battery is depleted.
2. Any facilities that generate strong radio waves, such as a TV tower, power plant, broadcast station or gas station, are located near the inspection site.
3. A wireless device, such as a cell phone, is carried with the key.
4. The key is in contact with or covered by metal.
5. Electric wave type keyless entry systems are being operated nearby.
6. The key is located near a device that generates high voltage or noise.
7. Film with some metallic content is applied to the back glass.
  HINT:
  
  In this case, remove the film or unlock the door using the mechanical key.
Even if the key is in the vehicle exterior key detection area, the key may not operate properly due to the vehicle body design.
The key may not be detected correctly if it is around the vehicle windows, door handles or bumpers, even when it is in the detection area outside the vehicle.
The key may not be detected correctly if it is on the instrument panel or floor, or in the glove box, even when it is in the detection area inside the vehicle.
The key may not operate if the key is not held properly.
The smart key system does not operate under the following conditions:
1. The smart key system is canceled.
2. The key battery is completely depleted (the indicator does not blink when pushing any of the switches on the key).

3. FUNCTION OF MAIN COMPONENTS

Component	Function
Certification ECU	Controls the smart key system in accordance with signals from each antenna, various switches, ECUs and the key. Performs key verification. Performs vehicle interior/exterior transmission. Performs occupant sensor control. Sends lock/unlock commands during entry function. Sends steering lock/unlock commands. Sends immobiliser set/unset commands. Records verification codes.
Main Body ECU	Receives request signals from the certification ECU and actuates each door lock motor to unlock or lock the doors. Transmits each door condition to the certification ECU. Supports the communication between the certification ECU and power slide door ECU for smart power slide door operation.
Power Management Control ECU	Controls the push button start function in accordance with signals from various switches, ECUs and the combination meter. Transmits the electrical key verification request signal to the certification ECU in accordance with the engine switch signal and turns relays on and off.
Power Slide Door ECU	Receives request signals from the certification ECU and actuates power slide door motor to open the slide door. Transmits smart slide door switch signal to the certification ECU.
Indoor Electrical Key Oscillator (for Front, Center and Inside Luggage)	Receives a request signal from the certification ECU and forms the detection area in the vehicle interior.
Door Control Receiver	Receives the ID code from the key in the detection area and transmits it to the certification ECU.
Electrical Key Antenna (Outside Luggage)	Receives a request signal from the certification ECU and forms the detection area around the back door.
Back Door Electrical Key Switch	Transmits a back door unlock request signal to the certification ECU. Transmits a back door lock request signal to the certification ECU.
Smart Power Slide Door Switch LH, RH	Transmits a smart power slide door operation request signal to the certification ECU. HINT: Signal is first input to the power slide door ECU, and then is transmitted through the main body ECU to the certification ECU.
Front Door Outside Handle Assembly LH, RH	Receives a request signal from the certification ECU and forms the detection area around front door. Transmits door unlock request signals to the certification ECU. Transmits door lock request signals to the certification ECU.
Electric Key Transmitter (key)	Consists of a mechanical key, a transmitter for wireless door lock control and a transceiver for the smart key system.
Wireless Door Lock Buzzer Combination Meter Assembly Buzzer	When the certification ECU detects human errors, such as those below, it warns the driver by sounding the wireless door lock buzzer, displays information and sounds the buzzer in accordance with the request signal from the ECU. Example: The key is brought out of the vehicle while the engine is still running. The key is brought out of the vehicle while the shift lever is in a position other than P.

4. CONSTRUCTION AND OPERATION

(a) Key

A total of 7 keys can be registered.

(1) Electrical key transmitter:

The electrical key transmitter consists of a mechanical key, a transmitter function for the wireless door lock control and a transceiver for the smart key system.

The transceiver function for the smart key system receives the signals from the antennas and sends the ID code to the door control receiver.
The transmitter function for the wireless door lock control has a lock switch, unlock switch and glass hatch open switch.

The mechanical key can lock/unlock all the doors. To lock or unlock the doors, remove the cap from the driver door outside handle, insert the key into the door key cylinder, and then turn it to the lock or unlock position.

Text in Illustration

*1	Lock Switch	*2	Unlock switch
*3	Slide Door Open Switch LH	*4	Slide Door Open Switch RH
*5	Back Door Open Switch	*6	Panic Switch
*7	Mechanical Key	-	-

(b) Antenna (front door, front floor, rear floor, inside luggage and outside luggage):

Each antenna transmits the request signal received from the certification ECU, and forms a key detection area to detect the presence of a key. The detection area formed by the front door antenna and outside luggage antenna is approximately 0.7 to 1.0 m (2.30 to 3.28 ft.) from the outside handle of the front door and rear bumper.

The detection area of the front door antenna is formed by transmitting a request signal every 0.25 seconds while the engine switch is off and all the doors are locked. In this way, it detects the proximity of a key. During entry lock, the detection area is formed with the lock sensor on.
The detection area of the outside luggage antenna is formed when the unlock switch is on.
The detection area of the indoor antennas (front floor, rear floor and inside luggage) is formed when the driver door is open or closed, during starting, when a warning is activated, or when the lock sensor is on.

5. ENTRY FUNCTION OPERATION

(a) The smart key system has the following functions:

Function	Outline
Mechanical Key	Operation is the same as a conventional mechanical key.
Wireless Door Lock Control	This function remotely locks and unlocks all the doors and the back door. Operation is the same as the wireless door lock control system. However, the receiver in the certification ECU uses the door control receiver to control locking and unlocking.
Entry Illumination	When a key enters the exterior detection area of the door electrical key oscillators (for driver and front passenger side), the foot lights illuminate.
Entry Unlock	When the key is located in the detection area of the electrical key antenna, the door can be unlocked by touching the inside of the front door outside handle.
Entry Unlock Mode Switching	Allows switching between 2 modes that can be operated with the entry unlock function. Driver Door Mode (Default Setting). All Door Unlock Mode.
Entry Lock	When the key is located in the detection area of the electrical key antenna and the engine switch is off, the door can be locked by touching the lock sensor on the front door outside handle. When the key is located in the detection area of the outside luggage electrical key antenna and the engine switch is off, the door can be locked by pressing the lock switch on the back door electrical key switch.
Entry Back Door Unlock	When the key is in the detection area of the electrical key antenna (outside luggage), the back door can be unlocked by pressing the unlock switch on the back door electrical key switch.
Smart Power Slide Door Open	When the key is in the detection area formed by the outside electrical key oscillator (for driver and front passenger side), pulling on the rear door outside handle for approximately 1 second will cause all doors to unlock and the activated power slide door to open automatically. HINT: If power slide door is unable to operate due to being prohibited by the power slide door main switch or for other reasons, the door unlock and door open operations will not be performed.
Memory Call*	This function operates the driving position memory system in accordance with the key ID code.
Key Lock-in Prevention	Prevents lock-in of the key if the door is locked while the key is still inside the vehicle. If all the doors are locked and the glass hatch is closed while the key is still inside the vehicle, the warning buzzer sounds. If the glass hatch opener switch is operated, the glass hatch can be opened.
Warning	When any of the situations below occur, the smart key system causes the certification ECU to sound the buzzer in the combination meter and the wireless door lock buzzer, and indicate a warning on the combination meter in order to alert the driver: The engine is left running and the shift lever is in a position other than P when the driver gets out of the vehicle. The key reminder sounds. The engine is left running and the shift lever is in P when the driver gets out of the vehicle. A door is ajar. The engine is left running when a passenger gets out of the vehicle while holding the key. The key is not in the detection areas. The key is left in the vehicle. The key battery is weak. The steering lock does not release. The steering lock mechanism is malfunctioning. The power management control ECU is malfunctioning. Engine cannot be started (driver error). Engine cannot be started (system error). An attempt is made to turn off the vehicle with the shift lever in a position other than P or N. Auto power off operation occurs. Immobiliser system certification completion occurs. The vehicle is driven without a key.
Battery Saving	If the key is constantly located within the detection area of the door antenna, the system maintains periodic communication with the key. Therefore, if the vehicle remains parked in that state for a long time, the key battery and vehicle battery may be drained. For this reason, the vehicle has controls for saving battery power.
Key Cancel (See page )	The following key functions can be cancelled by following certain procedures: Entry Unlock/Lock Entry Ignition Entry Back Door Open Smart Power Slide Door Open Memory Call* Key Lock-in Prevention Warning

*: w/ Front power seat System

6. WIRELESS DOOR LOCK CONTROL SYSTEM FUNCTION

Push the lock, unlock, panic, power back door, and power slide door switch on the key to operate each function. For details, (See page ).

7. ENTRY UNLOCK FUNCTION

(a) When the key enters any exterior detection area of a front door, the certification judges and certifies the key ID code received from the door control receiver assembly.

(b) After the key certification OK is confirmed, the certification ECU transmits an unlock stand-by signal to the touch sensor of the relevant door.

(c) At the same time, the certification ECU transmits the lighting signals to the foot lights on the outside rear view mirror and interior lights (engine switch illumination and interior lights) to turn them on (Entry Illumination Function).

(d) If a touch sensor is touched in this condition, the certification ECU transmits a door unlock request signal to the main body ECU, and unlocks either the driver door or all doors.

The front door outside handle assembly (for driver side) unlocks the driver door.
The front door outside handle assembly (for front passenger side) unlocks all doors.

(e) The main body ECU sounds the wireless door lock buzzer twice, and the main body ECU flashes the hazard warning lights twice, as an answer back for entry unlock.

8. ENTRY LOCK FUNCTION

(a) The entry lock signal is transmitted to the certification ECU when the user (who has the key in their possession) exits the vehicle and touches the lock sensor on the door outside handle assembly or presses the lock switch on the back door electrical key switch.

(b) The certification ECU transmits a request signal for the indoor electrical key oscillators (for front, center and inside luggage), door electrical key oscillators (for driver and front passenger side) and outside electrical key oscillator (for outside luggage) to form detection areas.

(c) The certification ECU judges and certifies the ID code. It then checks the location of the key and, if all doors are closed, the ECU transmits a door lock signal to the main body ECU.

(d) The main body ECU receives this signal and actuates the lock motors.

(e) The main body ECU blinks the hazard warning lights once and the main body ECU sounds the wireless door lock buzzer once as an answerback for the entry lock function.

9. ENTRY BACK DOOR OPEN FUNCTION

(a) The unlock signal is transmitted to the certification ECU from the back door opener switch assembly.

(b) The certification ECU transmits a request signal for the outside electrical key oscillator (for outside luggage) to form detection area.

(d) The certification ECU judges and certifies the ID code, and checks the location of the key. The ECU transmits a back door open signal to the main body ECU or power back door ECU.

(e) Any ECU receives this signal and actuates the motor to manually open the back door.

10. SMART POWER SLIDE DOOR OPEN FUNCTION

(a) The smart power slide door signal is transmitted to the certification ECU from the smart power slide door switch.

(b) The certification ECU transmits a request signal for the outside electrical key oscillator (for driver and front passenger side) to form detection area.

(c) If key verification is successful, the smart power slide door operation signal is sent to the main body ECU, which performs the all door unlock while transmitting a slide door open signal to the power slide door ECU, which opens the power slide door.

11. PREVENTION OF KEY CONFINEMENT FUNCTION

(a) The key confinement prevention function prevents the key from being locked in the vehicle.

(1) When the door is locked by the lock knob in the inside door handle while the key is still in the vehicle interior, the main body ECU receives this signal and transmits the door condition signal to the certification ECU.

(2) The certification ECU transmits a request signal for the indoor electrical key oscillators (for front, center and inside luggage) to form detection area.

(3) The key receives this signal and returns the ID code to the door control receiver assembly.

(4) The certification ECU judges and certifies the ID code, and checks the location of the key. The ECU transmits a door unlock signal to the main body ECU.

(5) The main body ECU receives this signal and actuates all door lock assemblies to unlock.

(6) The certification ECU sounds the wireless door lock buzzer and buzzer in the combination meter as an answer back for unlock.

12. ENTRY ILLUMINATION FUNCTION

When a person carrying the key enters the detection area, the door will enter unlock standby mode and the front map light will illuminate.

HINT:

The entry illumination function operates when the key enters the exterior detection area from outside the detection area. If the key does not remain out of the detection area for 3 seconds or more, the illumination function does not operate.

13. WARNING FUNCTION

(a) Warning

(1) When any of the situations below occur, the smart key system causes the certification ECU to sound a buzzer in the combination meter assembly and the wireless door lock buzzer, a message to appear on the multi-information display, and the engine switch illumination to operate in order to alert the driver.

Situation	Condition
A	The engine is left running and the shift lever is in a position other than P when the driver gets out of the vehicle.
B	The key reminder sounds.
C	The engine is left running and the shift lever is in P when the driver gets out of the vehicle.
D	A door is ajar.
E	The engine is left running when a passenger gets out of the vehicle while holding the key.
F	The key is not in the detection areas.
G	The key is left in the vehicle.
H	The key battery is weak.
I	The steering lock does not release.
J	The steering lock mechanism is malfunctioning.
K	The power management ECU is malfunctioning.
L	Engine cannot be started (driver error).
M	Engine cannot be started (system error).
N	An attempt is made to turn off the vehicle with the shift lever in a position other than P or N.
O	Auto power off operation occurs.
P	Immobiliser system certification completion occurs.
Q	The vehicle is driven without a key.

(2) Situation A

There are 2 patterns for situation A.

Pattern 1:

When the engine is left running and the shift lever is in a position other than P, the driver opens the door and attempts to get out of the vehicle.

In this situation, the following control is performed:

Possible Effects without Warning	Sudden vehicle start, vehicle theft, vehicle roll-away
Warning Active Condition	The warning is activated when all of the following conditions are met: The engine switch is in a mode other than off. The shift lever is in a position other than P. The vehicle speed is 0 mph (0 km/h). The driver door is opened.
Warning Method	Combination Meter Assembly	Buzzer	Sounds continuously
		Multi-information Display	The following warning message is displayed: Shift to P position and push engine switch to turn power off
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: The engine switch is turned off. The shift lever is moved to P. The vehicle speed is above 0 mph (0 km/h). The driver door is closed.

Pattern 2:

Under the situation of pattern 1, the driver closes the door and attempts to leave the vehicle while holding the key.

In this situation, the following control is performed:

Possible Effects without Warning	Sudden vehicle start, vehicle theft, vehicle roll-away
Warning Active Condition	The warning is activated when all of the following conditions are met: The shift lever is in any position except P. The shift lever is in a position other than P. The vehicle speed is 0 mph (0 km/h). The key is not in the vehicle. The driver door is opened → closed.
Warning Method	Combination Meter Assembly	Buzzer	Sounds continuously
		Multi-information Display	The following warning message are alternately displayed: Shift to P position and push engine switch to turn power off Key is not detected
	Wireless Door Lock Buzzer		Sounds continuously
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met:
	Combination Meter Assembly	Buzzer		The engine switch is turned off. The shift lever is moved to P. The vehicle speed is above 0 mph (0 km/h). Key is returned to the vehicle.
		Multi-information Display	The following warning message is displayed: Key is not detected	The engine switch is turned off. Key is returned to the vehicle.
			The following warning message is displayed: Shift to P position and push engine switch to turn power off	The shift lever is moved to P. The vehicle speed is above 0 mph (0 km/h).
	Wireless Door Lock Buzzer			The engine switch is turned off. The shift lever is moved to P. The vehicle speed is above 0 mph (0 km/h). Key is returned to the vehicle.

(3) Situation B

There are two patterns for situation B.

Pattern 1:
When the driver door is open, the driver turns the engine switch on (ACC) and attempts to leave the vehicle.

Pattern 2:

When the driver door is open, the driver turns the engine switch from on (IG) to off and attempts to leave the vehicle.

In these situations, the following control is performed:

Possible Effects without Warning	Vehicle theft
Warning Active Condition	The warning is activated when either of the following conditions is met: The engine switch is on (ACC) and the driver door is opened. The engine switch is off, the steering is unlocked, and the driver door is opened.
Warning Method	Combination Meter Assembly	Buzzer	Sounds continuously at short and even intervals
		Multi-information Display	-
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: The engine switch is turned on (IG). The driver door is closed. The engine switch is turned off and the steering is locked.

(4) Situation C

There are 2 patterns for situation C.

Pattern 1:

When the engine is left running and the shift lever is in P, the driver closes the driver door and attempts to leave the vehicle while holding the key.

In this situation, the following control is performed:

Possible Effects without Warning	Vehicle theft, engine cannot be restarted, discharged battery
Warning Active Condition	The warning is activated when all of the following conditions are met: The shift lever is moved to P. The engine switch is in a mode other than off. The key is not in the vehicle. The driver door is opened → closed.
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed: Key is not detected
	Wireless Door Lock Buzzer		Sounds 3 times
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when either of the following conditions is met: The engine switch is turned off. The key is returned to the vehicle.

Pattern 2:

Under the situation of pattern 1, the driver touches the lock sensor on the door outside handle assembly.

In this situation, the following control is performed:

Possible Effects without Warning	Vehicle theft, discharged battery
Warning Active Condition	The warning is activated when all of the following conditions are met: The engine switch is in a mode other than off. The shift lever is moved to P. All doors are closed. The key is not in the vehicle (within one of the detection areas).
Warning Method	Combination Meter Assembly	Buzzer		Sounds once
		Multi-information Display		The following warning message is displayed for 60 seconds (and then automatically turned off). Turn Power Off Key not Detected
	Wireless Door Lock Buzzer			Sounds continuously
	Engine Switch Illumination			-
Warning Stop Condition	The warning is stopped when either of the following conditions is met:
	Combination Meter Assembly	Multi-information Display	The following warning message is displayed: Turn Power Off Key not Detected	The engine switch is turned off. The shift lever is in a position other than P. The vehicle speed is above 0 mph (0 km/h).
	Wireless Door Lock Buzzer			10 seconds have elapsed after the wireless door lock buzzer was activated. Any door is opened. The engine switch is turned off. The shift lever is in any position except P. The vehicle speed is above 0 mph (0 km/h). Key is returned to the vehicle.

(5) Situation D

The lock sensor on the door outside handle assembly is touched to perform entry lock with a door open.

In this situation, the following control is performed:

Possible Effects without Warning	Vehicle theft
Warning Active Condition	The warning is activated when all of the following conditions are met: The engine switch is turned off. Any door is opened. The lock sensor on the door outside handle assembly is on (touched).
Warning Method	Combination Meter Assembly	Buzzer	-
		Multi-information Display	-
	Wireless Door Lock Buzzer		Sounds continuously
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: The engine switch is turned to a mode other than off. All doors are closed. An unlock operation is performed using the wireless door lock remote function. The touch sensor on the inner side of a door outside handle assembly is used to perform entry unlock. 10 seconds have elapsed after the wireless door lock buzzer was activated.

(6) Situation E

When the engine is left running, a passenger leaves the vehicle while holding the key.

In this situation, the following control is performed:

Possible Effect without Warning	Engine cannot be restarted
Warning Active Condition	The warning is activated when all of the following conditions are met: The engine switch is in a mode other than off. A door other than the driver door is opened → closed. The vehicle speed is 0 mph (0 km/h). The key is not in the vehicle.
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed: Key is not detected
	Wireless Door Lock Buzzer		Sounds 3 times
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when either of the following conditions is met: The engine switch is turned off. The key is returned to the vehicle.

(7) Situation F

When the key is not in the vehicle or the key battery is dead, the driver attempts to start the engine or turn the engine switch on (IG).

In this situation, the following control is performed:

Possible Effects without Warning	Confuses the user
Warning Active Condition	The warning is activated when both of the following conditions are met: The engine switch is pushed. The key is not in the vehicle.
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed: Key is not detected
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	Check if the key is in the detection area. If the key is in the detection area, press the wireless door lock switch and confirm that the indicator comes on. If the indicator does not come on, replace the key battery with a new one.

(8) Situation G

There are two patterns for situation G.

Pattern 1:

The lock sensor on a door outside handle assembly is touched to perform entry lock with the key left in the vehicle.

In this situation, the following control is performed:

Possible Effect without Warning	Vehicle theft
Warning Active Condition	The warning is activated when all of the following conditions are met: The engine switch is turned off. All doors are closed. The key is in the vehicle. The lock sensor on the door outside handle assembly is on (touched). Any door is unlocked.
Warning Method	Combination Meter Assembly	Buzzer		Sounds once
		Multi-information Display		The following warning message is displayed for 60 seconds (and then automatically turned off). Key Detected in Vehicle
	Wireless Door Lock Buzzer			Sounds continuously
	Engine Switch Illumination			-
Warning Stop Condition	The warning is stopped when one of the following conditions is met:
	Combination Meter Assembly	Multi-information Display	The following warning message is displayed: Key Detected in Vehicle	The engine switch is turned to a mode other than off. The vehicle speed is above 0 mph (0 km/h). Lock operation is detected.
	Wireless Door Lock Buzzer			10 seconds have elapsed after the wireless door lock buzzer was activated. Any door is opened. The engine switch is turned to a mode other than off. The vehicle speed is above 0 mph (0 km/h). Lock operation is detected.

Pattern 2:

With a door open and the key in the cabin, the lock knob is locked and then the door is closed with the door handle being pulled.

In this situation, the following control is performed:

Possible Effect without Warning	Vehicle theft
Warning Active Condition	The warning is activated when both of the following conditions are met: With a door open, the lock knob is locked and then the door is closed with the door handle being pulled. The key is in the vehicle.
Warning Method	Combination Meter Assembly	Buzzer		Sounds once
		Multi-information Display		The following warning message is displayed for 60 seconds (and then automatically turned off). Key Detected in Vehicle
	Wireless Door Lock Buzzer			Sounds continuously
	Engine Switch Illumination			-
Warning Stop Condition	The warning is stopped when one of the following conditions is met:
	Combination Meter Assembly	Multi-information Display	The following warning message is displayed: Key Detected in Vehicle	The engine switch is turned to a mode other than off. The vehicle speed is above 0 mph (0 km/h). Lock operation is detected.
	Wireless Door Lock Buzzer			10 seconds have elapsed after the wireless door lock buzzer was activated. Any door is opened. The engine switch is turned to a mode other than off. The vehicle speed is above 0 mph (0 km/h). Lock operation is detected.

(9) Situation H

The vehicle is driven using a key that has a low battery.

In this situation, the following control is performed:

Possible Effect without Warning	Smart key system does not function
Warning Active Condition	The warning is activated when both of the following conditions are met: The engine switch is turned off after being left on (IG) for more than 20 minutes. The key battery voltage is low.
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed for 15 seconds (and then automatically turned off). Low Key Battery
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The key battery is replaced with a new one.

(10) Situation I

The steering lock cannot be released.

In this situation, the following control is performed:

Possible Effect without Warning	Steering usability function
Warning Active Condition	The steering lock cannot be released, thus the engine is prevented from starting.
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed for 15 seconds (and then automatically turned off). Steering Lock is still active
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		The green indicator blinks at 1-second intervals (goes off automatically after 30 seconds).
Warning Stop Condition	The engine switch is pushed while the steering wheel is turned left and right, and the steering lock successfully disengages.

(11) Situation J

A malfunction of the steering lock ECU (steering lock actuator assembly) is detected.

In this situation, the following control is performed:

Possible Effect without Warning	Malfunction detection
Warning Active Condition	A malfunction of the steering lock ECU is detected.
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed for 60 seconds (and then automatically turned off). Check Steering Lock System
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		The amber indicator blinks at 2-second intervals (goes off automatically after 15 seconds).
Warning Stop Condition	The steering lock ECU returns to normal.

(12) Situation K

A malfunction of the power management control ECU is detected.

In this situation, the following control is performed:

Possible Effect without Warning	Malfunction detection
Warning Active Condition	A malfunction of the power management ECU is detected.
Warning Method	Combination Meter Assembly	Buzzer	-
		Multi-information Display	-
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		The amber indicator blinks at 2-second intervals (goes off automatically after 15 seconds).
Warning Stop Condition	The power management control ECU returns to normal.

(13) Situation L

There are two patterns for situation L.

Pattern 1:

A warning message appears on the multi-information display when the driver does not follow the proper procedure to start the vehicle.

In this situation, the following control is performed:

Possible Effects without Warning	Usability function
Warning Active Condition	The warning is activated when all of the following conditions are met: The engine switch is turned off. Driver door is closed → opened. The engine switch is turned from off to on (ACC) more than twice with the engine off and brake pedal not depressed.
Warning Method	Combination Meter Assembly	Buzzer	-
		Multi-information Display	The following warning message is displayed for 10 seconds (and then automatically turned off). Depress brake pedal and push engine switch to start
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The engine switch is pushed with the brake pedal depressed.

Pattern 2:

A message indicating how to start the engine appears on the multi-information display when the shift lever is in a position in which the engine cannot be started.

In this situation, the following control is performed:

Possible Effects without Warning	Usability function
Warning Active Condition	The warning is activated when all of the following conditions are met: The engine is stopped. The vehicle speed is 0 mph (0 km/h). More than 0.5 seconds have elapsed after the engine switch was turned on (IG). The engine is not cranking. The shift lever not in P or N
Warning Method	Combination Meter Assembly	Buzzer	-
		Multi-information Display	The following warning message is displayed: Shift to P position to start
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when one of the following conditions is met: The shift lever is moved to P or N. The vehicle speed is above 0 mph (0 km/h). The engine switch is turned off or on (ACC). The engine is started.

(14) Situation M

There are two patterns for situation M.

Pattern 1:

When the engine switch is pushed, the key cannot be detected in the vehicle two times in a row.

In this situation, the following control is performed:

Possible Effects without Warning	Usability function
Warning Active Condition	The warning is activated when all of the following conditions are met: The immobiliser system is set. The key is not in the vehicle. When the engine switch is turned on (ACC) or on (IG), a certification error occurs two times in a row.
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed for 60 seconds (and then automatically turned off). Depress brake pedal, touch engine switch with key
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when either of the following conditions is met: The immobiliser system certification result is OK. Key certification in the vehicle has stopped either because 30 seconds have elapsed after any of the doors is opened and closed, or because the brake pedal is depressed.

Pattern 2:

The driver attempts to start the engine after performing a driver door key linked unlock operation.

In this situation, the following control is performed:

Possible Effects without Warning	Usability function
Warning Active Condition	The warning is activated when all of the following conditions are met: A driver door key linked unlock operation is performed. The immobiliser system is set. The engine switch is pushed. The key is not in the vehicle.
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed for 60 seconds (and then automatically turned off). Depress brake pedal, touch engine switch with key
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when either of the following conditions is met: The immobiliser system certification result is OK. The key is returned to the vehicle.

(15) Situation N

A warning message appears on the multi-information display when the driver attempts to turn the engine switch off with the shift lever in any position other than P or N.

In this situation, the following control is performed:

Possible Effects without Warning	Usability function
Warning Active Condition	The warning is activated when both of the following conditions are met: The shift lever is in any position other than P or N. The engine switch is turned from on (IG) to on (ACC).
Warning Method	Combination Meter Assembly	Buzzer	-
		Multi-information Display	The following warning message is displayed: Shift to P position and push engine switch to turn power off
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when either of the following conditions is met: The shift lever is moved to P. The engine switch is turned to a mode other than on (ACC).

(16) Situation O

A warning message appears on the multi-information display when automatic power off operation occurs.

In this situation, the following control is performed:

Possible Effects without Warning	Battery Saving function
Warning Active Condition	The warning is activated when all of the following conditions are met: The shift lever is moved to P. The engine switch is on (ACC) or on (IG). The vehicle speed is 0 mph (0 km/h). The engine is stopped. The power source control system is turned off by automatic power off function.
Warning Method	Combination Meter Assembly	Buzzer	-
		Multi-information Display	The following warning message is displayed for 10 seconds (and then automatically turned off). Auto power off to conserve battery
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The engine switch is turned to a mode other than off.

(17) Situation P

A warning message appears on the multi-information display when a key with a depleted battery is touched to the engine switch while depressing the brake.

In this situation, the following control is performed:

Possible Effects without Warning	Malfunction detection
Warning Active Condition	Key certification result is OK*
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed for 10 seconds (and then automatically turned off). Depress brake pedal and push engine switch to start
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		The amber indicator blinks
Warning Stop Condition	The warning is stopped when either of the following conditions is met: The engine is started. The key is returned to the vehicle.

*: This situation occurs following situation M.

(18) Situation Q

A warning message appears on the multi-information display when the vehicle starts moving without the registered key in the vehicle interior.

In this situation, the following control is performed:

Possible Effects without Warning	Engine cannot be restarted
Warning Active Condition	When vehicle speed is detected after the key is removed from the vehicle, the warning is activated (only for first time).
Warning Method	Combination Meter Assembly	Buzzer	Sounds once
		Multi-information Display	The following warning message is displayed: Key is not detected
	Wireless Door Lock Buzzer		-
	Engine Switch Illumination		-
Warning Stop Condition	The warning is stopped when either of the following conditions is met: The engine switch is turned off. The key is returned to the vehicle.

14. BATTERY SAVING

(a) Vehicle Battery Saving Function

In the smart key system, signals are emitted outside the vehicle at a prescribed interval (0.25 seconds) when the doors are locked. Therefore, the vehicle battery could be drained if the vehicle remains parked for a long time. For this reason, the controls listed below are affected:

Condition	Control
Both conditions below are met for 5 days: Key is not in detection area Touch sensor or lock switch operation is not performed	Signal transmission interval is extended from 0.25 to 0.75 seconds
Both conditions below are met for 14 days: Key is not in detection area Touch sensor or lock switch operation is not performed	The smart key system automatically deactivates

Reinstatement Conditions

A wireless door lock control signal (lock, unlock) is input and the ID code matches.
A user carries the key and touches a lock sensor on a door outside handle assembly.
The driver door is locked or unlocked by the mechanical key.

(b) Key Battery and Vehicle Battery Saving Function

In the smart key system, if the key is constantly in the exterior detection area of the doors, the system maintains periodic communication with the key. Therefore, if the vehicle remains parked in that state for a long time, the key battery and vehicle battery could be drained. For this reason, if this state continues longer than 10 minutes, the smart key system automatically becomes deactivated.

Reinstatement Conditions

A wireless door lock control signal (lock, unlock) is input and the ID code matches.
A user carries the key and touches a lock sensor on a door outside handle assembly.
A door is locked or unlocked by the mechanical key.