2005 Pontiac Bonneville Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2005 Pontiac Bonneville

2005 Pontiac Bonneville Problems

Mode/Temperature Door Actuators May Fail

The mode and temperature door actuators may fail causing improper air flow or temperature output from the heating and AC (HVAC) system.

Engine Stalling Due to Mass Air Flow/Crankshaft Position Sensor Failure

The mass air flow or crankshaft position sensor may fail causing the engine to stall intermittently. Proper diagnoses will be necessary to determine the cause of any stalling condition.

Car Won't Start Because of Anti-Theft System That Uses Raised-Chip Key

Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.

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