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
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and an
Advisor can run a check.
See also:
Control of a Vehicle
Braking, steering, and accelerating
are important factors in helping to
control a vehicle while driving. ...
Weatherstrips
Apply silicone grease on weatherstrips to make them last longer, seal better,
and not stick or squeak. See Recommended Fluids and Lubricants . ...
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter, remove the filter from
the vehicle and lightly shake the filter to release
loose dust and dirt. If the filter remains caked with dirt, a
new filter is required ...