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
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and an
Advisor can run a check.
See also:
Automatic Headlamp System
When it is dark enough outside, the Automatic
Headlamp System turns on the headlamps when
the vehicle is started and after the transaxle
has been shifted out of the PARK (P) position.
The headla ...
Storing a Flat or Spare Tire and Tools
WARNING
Storing a jack, a tire, or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store all th ...
Trunk Deck Inboard Taillamp and Backup Lamp
Driver Side Shown, Passenger Side Similar
A. Backup Lamp
B. Taillamp
To replace any one of these bulbs:
1. Open the trunk.
2. Remove the push pins (A) retaining the trunk deck trim cover.
3. ...