Buick Enclave: OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect
to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic
Services. See OnStar Overview for more information.
READ NEXT:
SEE MORE:
HEATING AND AIR CONDITIONING SYSTEM DESCRIPTION AND OPERATION
Engine Coolant
Engine coolant is the key element of the heating system. The engine
thermostat controls the normal engine
operating coolant temperature. The thermostat also creates a restriction for the
cooling system that promotes a
pos
Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits.
If one circuit is not working, the remaining circuit can still work to stop the
vehicle. For normal braking performance, both circuits need to be working.
If the warning light comes on, there is a brake probl
