2003 Cadillac Seville Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Cadillac Seville

2003 Cadillac Seville Problems

Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator

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.

The Parking Brake May Not Automatically Release

The parking brake may not release automatically due to a failed vacuum switch or actuator. Our technicians tell us that if vacuum is supplied to the actuator when the transmission is in gear, the vacuum switch is functioning and replacing the actuator should correct this concern.

Check Engine Light Due to Gas Cap Issue

Illumination of the Check Engine Light may be the result of a loose or worn gas cap.

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2003 Cadillac Seville Questions

ck ng light Autozone said oxygen sensor & sensor in trans is this exps to fix (1 answer)

my mechanic said the sensor in trans is internal and he does not do this the oxygen sensor also needs to be replaced how expensive is thks type of repair

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2003 Cadillac Seville Recalls

GM Recalls 2002-2003 Vehicles Due to Fuel Tank Pressure Sensor Failure

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 Seville Reviews

bought my 03 sls used with 100K and no engine leaks at all. Beautiful car with all options. Only Problem is a leaking transaxle seal on the drivers side, that really dumps it out when in reverse. Love this car has more power than you'll ever need. So I'm going to pay the 1,400 to fix the seal. To me it'll be worth it.

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