Calling for Assistance
When calling Roadside Assistance, have the following
information ready:
• Your name, home address, and home telephone number
• Telephone number of your location
• Location of the vehicle
• Model, year, color, and license plate number of the vehicle
• Odometer reading, Vehicle Identification Number (VIN), and delivery date of
the vehicle
• Description of the problem
See also:
Engine Identification
The eighth character in the VIN is the engine code. This
code identifies the vehicle’s engine, specifications,
and replacement parts. See “Engine Specifications”
under Capacities and Speci ...
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 ...
Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include:
► Keep the vehicle serviced and in good shape.
...