OnStar Services
See also:
All-Wheel Drive
When to Check Lubricant
It is not necessary to regularly check fluid unless
you suspect there is a leak or you hear an
unusual noise. A fluid loss could indicate a
problem. Have it inspected and r ...
California Fuel Requirements
If the vehicle is certified to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specifications. See
the underhood emission control
label. If this ...
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 ...
