If the HUD Image Is Not Clear
• Is the HUD image too bright?
• Are the windshield and HUD lens clean?
If the HUD image is not correct, contact your dealer.
Keep in mind that the windshield is part of the HUD system.
See also:
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...
Service Vehicle Messages
SERVICE AC SYSTEM
This message is displayed if there is a problem with the air conditioning system.
Take the vehicle to your dealer for service.
SERVICE POWER STEERING
This message is displayed i ...
Reading Lamps
For vehicles with reading lamps, they are located on the overhead console.
To turn on the reading lamps, press the button located next to each lamp. To turn them off, press the button again.
The veh ...





