OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationSafety Locks
The vehicle has rear door safety locks on each rear door that prevent passengers
from opening the rear doors from the inside.
Using the Rear Door Safety Lock
Move the lever up to lock.
Close the door.
Repeat Steps 1 and 2 for the other rear door lock.
Caution
Pulling the inside do ...
Mirror Adjustment
Exterior Mirrors
Manual Outside Mirrors
If equipped, move the control up, down, or side to side to adjust the mirror.
See Manual Mirrors on page 2-13.
Power Outside Mirrors
If equipped, move the selector switch to L (Left) or R (Right) to choose
the driver or passenger mirror.
M ...
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system that indicates when to change the engine oil
and filter. This is based on a combination of factors which include engine revolutions,
engine temperature, and miles driven.
Based on driving conditions, the mileage at which an oil chang ...