Diagnostics
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, push 
, and an Advisor can run a check.
See also:
Customer Satisfaction Procedure (Mexico)
Did you get the Warranty Extension Plan? This plan is recommended by General Motors to supplement the warranty included with the new vehicle purchase.
See your dealer for details.
Customer Assista ...
Climate Control System (With Air Conditioning)
Climate Control System (With Air Conditioning)
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
D. Air Conditioning
E. Outside Air
F. Air Recirculation
G. Rear Window Defo ...
Leaving the Vehicle With the Engine Running
WARNING
It can be dangerous to leave the vehicle with the engine running. The vehicle
could move suddenly if the shift lever is not fully in P (Park) with the parking
brake firmly set. And, if yo ...