2003 Cadillac DeVille DTS Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Cadillac DeVille DTS
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2003 Cadillac DeVille DTS ProblemsHeating and AC Temperature and Air Delivery Mode Door Actuators May Fail
One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.
The steering wheel position sensor may fail, resulting in the service stability message being displayed.
The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.
2003 Cadillac DeVille DTS Questionswhy am I replacing motor mounts front and rear (3 answers)
twice in the last year
All the relays are good and none of the fuses are blown but yet I can start the car with a toggle switch that I installed at the relay