OnStar Services
See also:
Viscosity Grade
SAE 5W–30 is the best viscosity
grade for the vehicle. Do not use
other viscosity grade oils such as
SAE 10W–30, 10W–40, or 20W–50.
If in an area of extreme cold,
where the temperature falls ...
Wheels and Trim—Aluminum or Chrome
Use a soft, clean cloth with mild soap and water to clean the wheels. After rinsing
thoroughly with clean water, dry with a soft, clean towel. A wax may then be applied.
Keep the wheels clean using ...
Towing Equipment
Hitches
It is important to have the correct hitch equipment. Crosswinds, large
trucks going by and rough roads are a few reasons why the right hitch is
needed.
- The rear bumper on the vehicle ...






