OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationTires
Every new GM vehicle has high-quality tires made by a leading tire manufacturer.
See the warranty manual for information regarding the tire warranty and where to
get service. For additional information refer to the tire manufacturer.
Warning
Poorly maintained and improperly used tires are d ...
Engine Coolant Temperature Warning Light
This light comes on briefly while
starting the vehicle.
If it does not, have the vehicle serviced by your dealer. If the system is working
normally the indicator light goes off.
Caution
The engine coolant temperature warning light indicates that the
vehicle has overheated. Driving with this ...
Doors
Liftgate
Warning
Exhaust gases can enter the vehicle if it is driven with the liftgate,
hatch/trunk open, or with any objects that pass through the seal between the body
and the hatch/trunk or liftgate. Engine exhaust contains carbon monoxide (CO) which
cannot be seen or smelled. It can caus ...