Diagnostic Aids

The lane keep assist system operations in three general states:

• Off: The system has been turned off by the driver using the lane keep assist switch. The lane keep assist indicator on the lane keep assist switch will not be illuminated.
• Not Ready To Assist: The system is enabled and the lane keep assist indicator on the lane keep assist switch is illuminated, but the green lane keep assist indicator on the P16 Instrument Panel Cluster Control Module Control Module is not illuminated. This indicates the system not active and is not ready to assist. This occurs when any of the following conditions are present:
  • Vehicle speed is less than 37 mph (60 km/h). The system is designed to function at speeds greater than 37 mph (60 km/h).
  • The system cannot detect lane markings. This may be because there are no lane markings, as on a country road, or the lane markings cannot be determined due to snow, rain, or other driving conditions.
  • The windshield area in front of the B174W Frontview Camera - Windshield is blocked by fog, dirt, damage to the windshield, or other elements that may prevent the camera from detecting lane markings.
• Ready To Assist: The system is enabled and ready to warn of the unintentional lane crossing. The system is ready to assist when the green lane keep assist indicator is illuminated on the P16 Instrument Panel Cluster Control Module Control Module.

The B174W Front View Camera - Windshield may have trouble functioning under the following scenarios:

• Dirty windshield glass or obstruction on windshield. This may included dirt, snow, or ice, 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 identify objects, vehicles, and lane markings.
• The B174W Frontview Camera - Windshield is not properly installed. Verify it is snapped into tabs and is secure. 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 windshield may have the B174W Frontview Camera - Windshield in the incorrect location. Improper installation of a replacement windshield may also prevent completion of the learn if the windshield was not centered and leveled in the vehicle's windshield opening.
• Driving through snow or fog, or driving directly into the sun.
• Driving on windy or hilly roads.