2003 Cadillac Deville: check engine light

8 of the 145 complaints about the 2003 Cadillac Deville describe check engine light.

owner complaints: 8
of this car's complaints: 6%
typical mileage: 94,300
recalls: 0

Is there a fix? 89 service bulletins cover this area of the car. See below

Check engine light by model year

2005
1
2004
2
2003
8
2002
7
2001
7
2000
5
1999
2
1997
2
1996
2
1993
1

What owners say

Filed Sep 13, 2019 · Airbags, Fuel system · 94,300 miles · SC

Takata recall - the air bag light is staying on all the time. The service engine light comes on occassionally after I put gas in

Filed Oct 30, 2018 · Engine · 79,000 miles · AZ

Tl* the contact owns a 2003 cadillac deville. The contact stated that the service engine light was illuminated. The vehicle was taken to the arrowhead cadillac (8310 w bell rd, glendale, az 85308 (623) 455-6910) where it was informed that the torque converter needed to be replaced. The vehicle was not repaired. The manufacturer was contacted however no further assistance was provided. The failure mileage was 79,000. The VIN was not available. *tt VIN is invalid.

Filed Oct 31, 2014 · Airbags, Engine · 145,000 miles · MA

Tl* the contact owns a 2003 cadillac deville. The contact stated while driving various speeds, the check engine and the air bag warning lights illuminated. The vehicle was taken to a dealer. The technician diagnosed that the driver side air bag inflator module and the throttle needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 145,000. Updated 01/22/15*cn updated 8/31/2017

Filed Aug 13, 2013 · Engine · 96,100 miles · IL

Tl* the contact owns a 2003 cadillac deville. The contact stated that the vehicle suddenly accelerated while driving 55 MPH. The engine warning light was illuminated at the time the failure occurred. The vehicle was taken to an independent mechanic where a diagnostic was performed, which located the failure at the engine intake air flow. The vehicle was also taken to the dealer for a second diagnostic, which located the failure at the intake air plenum. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 96,100 and the approximate current mileage was 200,000.

Filed Jan 2, 2013 · Transmission · TN

2003 cadillac sedan deville. Consumer writes in regards to transmission problems. *smd the consumer stated the engine light illuminated. A diagnostic test revealed, the port converter control solenoid was sticking. Updated 01/15/13

Filed Jan 8, 2010 · Transmission · 82,000 miles · KY

The service engine light came on in my 2003 v-8 cadillac deville, at 82,000 miles. Dealer diagnosed transmission problem; replaced torque converter and reworked lower valve body. Dealer charged $2241 for repairs.

Filed Apr 23, 2009 · Engine · 81,836 miles · FL

Tl*the contact owns a 2003 cadillac deville. While driving 30mph, the vehicle stalled and the check engine light came on. The contact had difficulty driving out of the middle lane; however, he was able to restart the vehicle. The diagnosis was to replace the crank shaft sensor at his own expense of $328. The contact doesn't want to assume the repair cost. The contact stated that he will notify the manufacturer for reimbursement. The failure mileage was 81,836.

Filed Nov 5, 2004 · Electrical, Engine · AZ

Multiple failures with 2003 cadillac. The check engine light illuminated, cruise control ceased and the transmission had to be repaired. *bf . The consumer was traveling in a heavy rain storm when the head lights and dash board lights went out. The head lights eventually came back on until another heavy rain and they went out again. Consumer was told the water pump was leaking and that was the reason the check coolant level reading was being displayed. *tc