The calibration/learn process for the B174W Frontview Camera – Windshield is necessary when the B174W Frontview Camera – Windshield is replaced by a new one or has been removed from its bracket, or the windshield glass has been replaced, and mounted again properly. Any maintenance, repair, or part replacement that impacts the vehicle ride height will also require frontview camera calibration/learn. It may be necessary to initiate the calibrate/learn using a scan tool. This process is typically completed within 3–5 minutes when the correct driving conditions are met. If conditions are not met, the B174W Frontview Camera – Windshield will continuously run the service point calibration/learn until successfully completed. If the Lane Departure Warning Switch is pressed during calibration/learn, the indictor will flash momentarily and then remain off. This is normal operation indicating the system is not available.

While performing the B174W Frontview Camera – Windshield calibrate/learn, operate the vehicle in the following conditions until the calibration/learn is complete:

• Ensure the windshield is clean
• Avoid lane changes
• Maintain vehicle speeds between 56–90 km/h (35–56 MPH)
• Ensure the road contains visible references (well defined lane markings, curbs, etc.)

Once the procedure is complete, the amber indicator will turn off. Shortly after, the green ready to assist indicator should illuminate so long as all conditions are met for normal operation. The system is then ready to assist.

1. Apply the parking brake.
2. Place the transmission in Park (if applicable)
3. Install scan tool
4. Select Module Diagnostics
5. Select B174W Frontview Camera – Windshield
6. Select Configuration/ Reset Functions

Note: GDS must remain active while driving the vehicle during camera configuration/learn.

7. Select the Frontview Camera Learn, and follow the directions displayed on the screen.
8. Drive the vehicle to complete calibration/learn.

The ideal calibration/learn condition is, driving on a two-lane divided highway with markings on both sides of the lane. One or more of the following conditions may increase the length of time required to complete the self-calibration/learn procedure:

• Heavy traffic
• Stop and go traffic
• Mountain roads
• Curves in roadway
• Poor contrast lane markings
• Botts' Dots or similar type lane markings
• Operating the vehicle at speeds greater than recommended
• Driving through snow or fog, or driving directly into the sun
• B174W Frontview Camera – Windshield is not properly installed. Verify it is snapped into tabs and is secure. Refer to Front View Camera Replacement.

Conditions that will prevent completion of the self-calibration/learn procedure:

• Dirty windshield glass or obstruction on windshield. This may included a tinted windshield, windshield tint strips, or vinyl strips or graphics on the windshield. Additionally, other obstructions such as brush guards or hood deflectors may obstruct view of the B174W Frontview Camera – Windshield, and hinder it’s ability to complete the calibration/learn.
• Operating the vehicle with speed less than 56 km/h (35 MPH)
• No visible lane markings
• Severe weather where lane markings cannot be seen
• Steering Angle Sensor not calibrated/learned. Refer to: Steering Wheel Angle Sensor Centering
• Vehicle Dynamic Sensor Offset not calibrated/learned. Refer to: Vehicle Dynamic Sensor Offset Calibration
• B174W Frontview Camera – Windshield not properly installed. Verify it is snapped into tabs and is secure. Refer to Front View Camera Replacement. Ensure the bracket is in the correct location by comparing to a known good vehicle. This is especially important if the windshield was recently replaced. Some aftermarket windshields may have the B174W Frontview Camera – Windshield in the incorrect location. Improper installation of a replacement windshield may also prevent completion of the calibration/learn if the windshield was not centered and leveled in the vehicle’s windshield opening.