OnStar®
Keys and LocksTire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on
briefly when the engine is started. It provides information about tire pressures
and the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires are significantly underinflated.
A Driver In ...
Climate Controls
The heating, cooling, defrosting, and ventilation for the vehicle can be controlled
with these systems.
Vehicles without Air Conditioning
1. Temperature Control
2. Bi-level Air Mode
3. Floor Air Mode
4. Vent Air Mode
5. Fan Control
6. Driver and Passenger Heated Seats (If Equipped)
7. Re ...
SIR Disabling and Enabling
SIR component location affects how a vehicle should be serviced. There are
parts of the SIR system installed in various locations around a
vehicle. To find the location of the SIR components refer to SIR Identification
Views.
There are several reasons for disabling the SIR system, such as re ...