Performance and Maintenance
See also:
Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep
downgrade. If the transmission is not shifted down, the brakes might have to be
used so much that they would get hot and n ...
Satellite Radio
Vehicles with an XM™ satellite radio tuner and a valid XM satellite radio
subscription can receive XM programming.
XM Satellite Radio Service
XM is a satellite radio service based in the 48 con ...
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 ...






