Lamps
Properly working headlamps, taillamps, and brake lamps are important to see and be seen on the road.
- Signs that the headlamps need attention include dimming, failure to light, cracking, or damage.
The brake lamps need to be checked periodically to ensure that they light when braking.
- With a multi–point inspection, your dealer can check the lamps and note any concerns.
See also:
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Vehicle
Diagnostics, Remote Door Unlock,
Roadside Assistance, Turn-by-Turn
Navigation, and Hands-Free ...
Liftgate
Manual Liftgate Operation
For vehicles without keyless access, unlock the vehicle before opening the
liftgate.
Press the touch pad located in the handle of the liftgate, above the license
plat ...
Limited Guidance Areas
Any area that is not classified as detailed, is a limited guidance area. Limited
guidance streets are displayed on the map but route guidance may not be given on
these streets. Some POI categories ...