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:
Tire Rotation
Tires should be rotated every 12 000 km (7,500 mi).
See Maintenance Schedule.
Tires are rotated to achieve a uniform wear for all tires.
The first rotation is the most important.
Any time ...
Daytime Running Lamps (DRL)
Daytime Running Lamps (DRL) can make it easier for others to see the front
of your vehicle during the day.
Fully functional daytime running lamps are required on all vehicles first
sold in Canada ...
Parking over Things That Burn
WARNING
Things that can burn could touch hot exhaust parts under the vehicle and
ignite. Do not park over papers, leaves, dry grass, or other things that can
burn. ...