Using this Manual
To quickly locate information about the vehicle, use the Index in the back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found.
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 v ...
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a
combination of fuses and circuit breakers. This greatly reduces the chance of
damage caused by electrical problems.
To ch ...
Tire Sidewall Labeling
Useful information about a tire
is molded into its sidewall.
The examples show a typical
passenger vehicle tire and a
compact spare tire sidewall.
Passenger (P–Metric) Tire Example
(A) Tire ...






