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 InformationFront Turn Signal/Parking Lamps
To replace a front turn signal bulb:
Open the hood. See Hood on page 10-5.
Turn the bulb socket counterclockwise and pull it out of the lamp housing.
Pull the bulb straight out of the bulb socket.
Install the new bulb into the socket by pressing it in.
Install the socket into the ...
Different Size Tires and Wheels
If wheels or tires are installed that are a different size than the original
equipment wheels and tires, vehicle performance, including its braking, ride and
handling characteristics, stability, and resistance to rollover may be affected.
If the vehicle has electronic systems such as antilock ...
Safety Belts
This section of the manual describes how to use safety belts properly. It also
describes some things not to do with safety belts.
Warning
Do not let anyone ride where a safety belt cannot be worn properly.
In a crash, if you or your passenger(s) are not wearing safety belts, injuries can
be ...