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, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationSteering Column in Lock Position Caution
Caution: With wheels of the vehicle facing straight ahead, secure
the steering wheel utilizing steering column anti-rotation pin, steering
column lock, or a strap to prevent rotation. Locking of the steering column will
prevent damage and a possible malfunction of the SIR
system. The steering ...
Test Probe Caution
Caution: Do not insert test equipment probes (DMM etc.) into any
connector or fuse block terminal. The diameter of the test probes will
deform most terminals. A deformed terminal will cause a poor connection, which
will result in a system failure. Always use the EL-35616
GM-Approved Terminal T ...
Shifting Into Park
Use this procedure to shift into P (Park):
1. Hold the brake pedal down and set the parking brake.
2. Hold the button on the shift lever and push the lever toward the front of the
vehicle into P (Park).
3. Turn the ignition to LOCK/OFF.
Leaving the Vehicle with the Engine Running
WARNING
It ...