Problems for specific Buick models:
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Repairpal verified Buick problems
The steering rack may fail causing the steering to become hard to turn.
When the heater only works on high, the most common problem is a blower motor resistor. The correct repair is to replace it with a new resistor.
Door lock mechanisms not operating properly. Doors may not lock/unlock.
Replacement of faulty door lock actuator required for proper operation.