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 InformationEngine Exhaust
Warning
Engine exhaust contains carbon monoxide (CO) which cannot be seen
or smelled. Exposure to CO can cause unconsciousness and even death.
Exhaust may enter the vehicle if:
The vehicle idles in areas with poor ventilation (parking
garages, tunnels, deep snow that may block underbody a ...
Loss of Control
Skidding
There are three types of skids that correspond to the vehicle's three control
systems:
Braking Skid - wheels are not rolling.
Steering or Cornering Skid - too much speed or steering in a curve causes
tires to slip and lose cornering force.
Acceleration Skid - too much thro ...
High-Beam On Light
This light comes on when the high-beam
headlamps are in use.
See Headlamp High/Low-Beam Changer on page 6-1 for more information.
Daytime Running Lamps (DRL) Indicator Light
This light, in the display on the
top of the center stack, turns on whenever the Daytime Running Lamps are in use.
Se ...