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 InformationUsing the Tire Sealant and Compressor Kit without Sealant to Inflate a Tire
(Not Punctured)
The kit includes:
Sealant Canister Inlet Valve
Sealant/Air Hose
Base of Sealant Canister
Tire Sealant Canister
On/Off Button
Slot on Top of Compressor
Pressure Gauge
Pressure Deflation Button
Power Plug
Air Only Hose
If a tire goes flat, avoid further tire and wheel ...
Automatic Transmission Shift Lock Control Function Check
Warning
When you are doing this inspection, the vehicle could move suddenly.
If the vehicle moves, you or others could be injured.
Before starting this check, be sure there is enough room around the vehicle.
It should be parked on a level surface.
Apply the parking brake. Be ready to app ...
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 ...