Buick Enclave: Special Application Services
► Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000
km/3,000 mi.
► Have underbody flushing service performed once a year.
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Your vehicle is an important investment and caring for it properly may help to
avoid future costly repairs. To maintain vehicle performance, additional maintenance
services may be required. It is
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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
COOLING FAN DESCRIPTION AND OPERATION
Fig. 49: Cooling Fan Description and Operation
The engine cooling fan system consists of 2 electrical cooling fans and 3 fan
relays. The relays are arranged in a
series/parallel (S/P) configuration that allows the engine control module (ECM)
to operate both f
