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Resources for the Repair and Maintenance of your 2003 Cadillac DeVille

2003 Cadillac DeVille

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2003 Cadillac DeVille Problems

Miscellaneous -- Verified

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.

Engine -- Verified

The engine may develop oil leaks 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.

Heating & Air Conditioning -- Verified

One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

Drive Train -- Verified

The torque converter clutch (TTC) may stop working due to an internal transmission failure. The Check Engine Light will illuminate if this occurs. Our technicians tell us the transmission will require dis-assembly to correct this concern.

Engine -- Verified

The crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.

2003 Cadillac DeVille Recalls (Recent)

Body, Interior & Misc., August 15, 2002


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Body, Interior & Misc., March 11, 2003

RepairPal Expert Overview:

On 130 vehicles, the driver's air bag may not deploy properly if needed in a crash. Also, the inflator could rupture. This could increase the risk of injury to the driver and other passengers if pieces of the inflator strike them. Dealers will inspect and install a new driver's air bag if needed. The recall began March 11, 2003. The GM recall number is 03008.

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Engine, October 17, 2003

RepairPal Expert Overview:

GM recalls certain 2002-2003 Cadillac Devillle, Seville, Oldsmobile Aurora, and Pontiac Bonneville vehicles because the fuel tank pressure sensor may fail and cause a fuel leak. In the presence of an ignition source, a fuel leak may result in a fire. Dealers will replace the fuel tank pressure sensor.

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2003 Cadillac DeVille Questions and Answers

jimmy saunders, 2003 Cadillac DeVille, Raleigh, NC

wht is a sensor responds
what is b for

langel1905, 2003 Cadillac DeVille, Plano, TX

the ac blower motor runs. but no air will come from vents or the deforst. The rear air works fine. Is this a ac blend motor issue?

caddaddy, 2003 Cadillac DeVille, Orlando, FL

My service engine soon light has been comming on and off but now has been on for 5 days. What are the possible causes and is it critical. Everything is running fine

mokan1959, 2003 Cadillac DeVille, Shawnee, KS

I just bought my car and the service ingine light came on.I had it read and it came back with secondary air injection system malfunction.Does anyone know what that means? And estimate repair cost? ...

red603, 2003 Cadillac DeVille, Indianapolis, IN

When driving air cuts in and out. what causes this

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2003 Cadillac DeVille Reviews

my power sterring and power brakes stop is there a relay are something

got the car wit 42,000 for 18,955 ran good now has 140,000 now starting to give me problems big ones every thing is starting to go at once. when i take it to the shop who ever fix it say these cars are time cusoming to fix and labor is costly parts are cheep but u must have money to get it fix because u brought it to me. but other than that till now 2003 deville is the best model i had out of them all so if u get one get it with low millage and sale it before u get to 120,000

I purchased my 2003 Deville DTS w/ 23000 miles on it. After having this car I highly doubt that I will ever purchase another Cadillac. The day I took the car home the window modulator went out, and since then two window regulators have stopped working, I have to replace my idle control valve, my interior lights won't come on, when I lock the doors with my remote the alarm goes off 10 min. afterward, my stability and traction control indicators come on for no reason at all, when I took the car to get ONE of the regulators replaced they took the door panel off and found MASKING TAPE holding certain parts together...It's a nice car but it's not worth the trouble and money.

Owned the car for 4 years, bought it with 45000mi. Have replaced 3 window regulators, cam and crank position sensors, gas cap, blower motor and related electronics, the awful Michelin tires that came with the car, and a wheel speed sensor.

It's comfortable, and it looks good. But it's a money pit - plain and simple. There are more reliable cars with similar comfort and convenience for less money. Owned a 94 DeVille before this one, will not own another one again.

I purchased the car w/ 38,000 miles 2 years ago and I have 50,000 miles now. I was informed I need major transmission work.
The car is in like new condition. I can't believe I have to spend that kind of $$ on a car w/ 50,000 miles. This is my 2nd Cadillac and most likely my last.

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