If the LDW symbol does not appear:
This is normal operation; the vehicle does not need service. Clean the windshield.
Warning
LDW does not provide a warning to help avoid a crash, unless it detects the lane markings. LDW may not detect the lane markings if the camera sensor is blocked by dirt, snow, or ice, or if the windshield is damaged. It may also not detect a lane on winding or hilly roads, or in conditions that can limit visibility such as fog, rain, or snow, or if the headlamps or windshield are not cleaned or in proper condition. Keep the windshield, headlamps, and camera sensors clean and in good repair.
LDW warnings may occasionally occur due to tar marks, shadows, cracks in the road, or other road imperfections. This is normal system operation, the vehicle does not need service.
How the System Works
FuelService Publications Ordering Information
Service Manuals
Service Manuals have the diagnosis and repair information on the engines, transmission,
axle, suspension, brakes, electrical, steering, body, etc.
Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably
service General Motors c ...
Special Tools
Illustration
Tool Number/ Description
BO-125
KM-125
Torque Rod Lifter
...
Intake Manifold Replacement
Special Tools
EN-34730?E1 Pressure Tester
EN-6015 Closure Plugs
For equivalent regional tools, refer to Special Tools
Removal Procedure
Disconnect the battery negative cable. Refer to Battery Negative Cable
Disconnection and Connection.
Remove the engine sight shield. ...