One or more of the power window regulators (one in each door) may fail causing the window to fall into the door and not roll up.
Resources for the Repair and Maintenance of your 2003 Cadillac DeVille DTS
2003 Cadillac DeVille DTS
2003 Cadillac DeVille DTS Problems
The engine may develop an oil leak from the lower crankcase portion of the engine block. Our technicians tell us that the engine must be removed from the vehicle to properly repair this oil leak.
The steering wheel position sensor may fail, resulting in the service stability message being displayed.
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 crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.
2003 Cadillac DeVille DTS Questions and Answers
I need to know how to replace the light on steering wheel
Crossover pipeseals leaking coolant and lower crankcase half starting to leak. How much does it cost to repair these issues?
Now when driving car it makes a hissing sound but when I stop the car it also stops.any idea???
Why does air conditioning fan work intermittenly? IT comes on when right door slams or when going across a rough railroad track
2003 Cadillac DeVille DTS Reviews
Hi I'm Donald and you can assume that I'm a mechanic. It's one of my greatest pains but best joys! I also own a 2003 Cadillac Deville with the 4.6 northstar Engine. I'm also an auto Mechanic!
I just can't think of a better trade to have than one that allows you to test the limits with your northstar. When it breaks it's going to need LOTS of the best deserved attention and I DO GIVE my Deville all it needs despite the design flaws. It's great!
Working on it makes learning about it a real challenge! But I rise to all of those occasions and meet the challenges, I have to!
I like to keep it looking and running FRESH! I get the best of both worlds. I get to learn, drive and experience my car to beyond what most owners of these need to be pampered powerhouses can, but if it breaks I just plugin and make the necessary repairs myself and continue enjoying what the designers wanted me to.
They are a uniquely different breed of engines that do deliver and break! But they are also resilient. I Love My Deville!
Replaced 5 (twice on driver side) window regulators. Plastic parts on something used almost daily? Constant o2 codes. 80k miles. Drives great but too many repairs.
worst car I ever owned . Had many Cadillacs they lost my busness forever. repairs all the time. window motors all 4 many codes a.c. will not blow out of dash vents uses alot of oil 56,000 miles and falling apart
i have a 03 dhs this is the best cadillac i have ever own this car is something else . i own a lot of cadillacs this is the best i ever own. that nortstar system is something