Cadillac Seville Problems

RepairPal has identified the most common problems with the Cadillac Seville as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.

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.

The EGR control solenoid or EGR valve may fail causing the Check Engine Light to illuminate.

An updated PROM (Programmable Read Only Memory) chip may be available for the powertrain control module (PCM). Check with your dealer.

The powertrain control module (PCM) can fail causing stalling, and various engine and transmission drivability concerns.

The trunk pull down switch may fail causing the trunk lid not to close completely. Our technicians tell us that the failed switch can be replaced without changing the complete pull down motor assembly.

One or both transmission output shaft seals may leak. Our technicians tell us that worn bushings inside the transmission could be the cause of the damaged seals. Our technicians tell us that if a bushing is worn, excess play will be noted where the drive axle attaches to the transmission.

The electronic level ride system may not work properly; this may result in the rear of the vehicle riding too high or too low. Our technicians tell us that a height sensor or exhaust valve failure are common issues with this system. Proper diagnoses will be necessary to confirm the exact fault.

The high-pressure power steering lines are known to leak.

The steering wheel position sensor may fail, resulting in the service stability message being displayed.

The steering may develop a clunk type noise from the upper intermediate steering shaft.  Our technicians tell us that you should check with you local GM dealer to find out what the latest repair is for this condition.