Last Modified: 08-22-2025 6.11:8.1.0 Doc ID: RM0000003TPCS06
Model Year Start: 2026 Model: GR Corolla Prod Date Range: [08/2025 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: STEERING PAD (for G16E-GTS): INSTALLATION; 2026 MY GR Corolla [08/2025 -        ]

INSTALLATION

PROCEDURE

1. INSTALL HORN BUTTON ASSEMBLY (w/ Occupant Classification System)

(a) Check that the ignition switch is off.

(b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(c) Engage the wire harness clamp.

HINT:

Be sure to engage the wire harness clamp until it is locked.

*a

Upper Pin

*b

Lower Pin

(d) Connect the 2 airbag connectors to the horn button assembly.

NOTICE:

  • When connecting any airbag connector, take care not to damage the airbag wire harness.
  • Be sure to connect the connectors to each corresponding color.

HINT:

Refer to How to Connect or Disconnect Airbag Connector.

Click here 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: HOW TO CONNECT OR DISCONNECT AIRBAG CONNECTOR

(e) Connect the horn connector to the horn button assembly.

(f) Push the horn button assembly to engage the 3 pins carefully and install the horn button assembly.

NOTICE:

  • Make sure that the pins are securely inserted into the steering wheel assembly holes.
  • Make sure to engage the 2 upper pins first.
  • Make sure that the horn button assembly is securely installed.

2. INSTALL HORN BUTTON ASSEMBLY (w/o Occupant Classification System)

(a) Check that the ignition switch is off.

(b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

(c) Engage the wire harness clamp.

HINT:

Be sure to engage the wire harness clamp until it is locked.

*a

Upper Pin

*b

Lower Pin

(d) Connect the airbag connector to the horn button assembly.

NOTICE:

When connecting any airbag connector, take care not to damage the airbag wire harness.

HINT:

Refer to How to Connect or Disconnect Airbag Connector.

Click here 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: HOW TO CONNECT OR DISCONNECT AIRBAG CONNECTOR

(e) Connect the horn connector to the horn button assembly.

(f) Push the horn button assembly to engage the 3 pins carefully and install the horn button assembly.

NOTICE:

  • Make sure that the pins are securely inserted into the steering wheel assembly holes.
  • Make sure to engage the 2 upper pins first.
  • Make sure that the horn button assembly is securely installed.

3. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL

Click here 2025 - 2026 MY GR Corolla [09/2024 -        ]; G16E-GTS (BATTERY / CHARGING): GENERATOR: INSTALLATION+

4. INSTALL DECK BOARD ASSEMBLY

Click here 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; INTERIOR PANELS / TRIM: ROOF HEADLINING (for Hatchback): INSTALLATION+

5. INSPECT HORN BUTTON ASSEMBLY

(a) Make sure that the horn sounds.

If the horn does not sound, inspect the horn system.

Click here 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; HORN: HORN SYSTEM: PROBLEM SYMPTOMS TABLE

6. INSPECT SRS WARNING LIGHT

Click here 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [08/2025 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: OPERATION CHECK

7. INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click here 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: AUTOMATIC LEARNING CHART