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 InformationIf the Vehicle Is Stuck
Slowly and cautiously spin the wheels to free the vehicle when stuck in sand,
mud, ice, or snow.
If stuck too severely for the traction system to free the vehicle, turn the traction
system off and use the rocking method. See Traction Control/Electronic Stability
Control on page 9-27.
Warning ...
Driving on Wet Roads
Rain and wet roads can reduce vehicle traction and affect your ability to stop
and accelerate.
Always drive slower in these types of driving conditions and avoid driving through
large puddles and deep-standing or flowing water.
Warning
Wet brakes can cause crashes.
They might not work as wel ...
Exterior Lighting
The exterior lamp control is on the turn signal lever on the left side of the
steering column.
There are four positions:
Turns on the headlamps together with
the parking lamps and instrument panel lights.
Turns on the parking lamps including
all lamps, except the headlamps.
Turns the ...