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.
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Sunroof
The ignition must be in ON/RUN or ACC/ACCESSORY to operate the sunroof and power
sunshade.
See Retained Accessory Power (RAP) .
The vehicle may have a sunroof over the front seats and a rear sunroof over the
second row seats.
The rear sunroof does not open.
The switch to operate t
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
