Which parts fail
Components named in complaints (accelerator pedal, throttle, sudden acceleration, cruise control).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 1996 Cadillac Deville owners, lightly cleaned up (personal details are redacted by NHTSA).
Very dangerous situation occurred while driving on city roads where posted speeds are 35-45 MPH. The car just started to speed up on its own and I could not get the engine to slow down. The only way I could avoid a traffic accident was to ride the brakes continuously. By the time I got home the brakes were smoking and extremely overheated. I almost could not stop with the engine racing and the brakes worn out. I had to shut the engine down while still in drive, almost running into the wall of my house. I am 70 years old and was very scared. On edmunds .com there are three other reported instances of the same thing happening with the same make and model. My car is undriveable and I will have to get it towed from my house to the dealer for it to be checked out, please follow up on this as it is a very dangerous condition. I was very close to having an accident.
Tl* the contact owns a 1996 Cadillac Deville. While driving approximately 30 MPH, the vehicle abnormally accelerated until heavy pressure was applied to the brake pedal. The failure would occur intermittently. The vehicle was taken to an authorized dealer yet they were unable to diagnose the failure. The vehicle was not repaired. The failure and current mileages were 90,201.
Driving our car, '96 Cadillac Deville, with approximately 38,000 mi, traveling north on the 15 fwy., approaching victorville, ca, our speed went out of control repeatedly hitting 90+ MPH. This happened, even though I shifted the gears down 3,2, then 1, and floored the brake, then the emergency brake. On cutting front of another, exiting the freeway, uphill, coming to the signal, on bear valley road, was able to turn left on a green, then the next signal green, but then a red light, it was impossible to bring the car to a stop. Suddenly a green arrow let us turn right, and right in front of a truck. Continuing north on a frontage road, seeing a practically empty parking lot, entered it and then shut the engine off, finally coming to a stop. Calling aaa, we were told there were no Cadillac agencies near & would have to tow all the way to kennedy Cadillac I n san bernardino. …
Dt: the contact owns a 1996 Cadillac sedan Deville. He states that on May 23,2005 while slowing down for a red light the car accelerated while pressing the brake pedal. The vehicle was going about 45 MPH. Upon approaching a red light he had the vehicle down to about 10 MPH to make the vehicle stop because he was moving toward oncoming traffic. He shifted the vehicle into park and shut the engine off, and smoke started coming from the engine and into the inside of the car. Had the vehicle towed home because it was unsafe to drive.
Dt*: the contact stated on April 1st, 2006 after stopping for gasoline, the odometer was reset for trip mileage. Afterwards the vehicle began to accelerate causing the RPM to increase even while applying brake pressure. The vehicle was turned off. After restarting the vehicle it continued to be in the high acceleration mode. The vehicle was driven to the dealership and is awaiting inspection. Additionally the cruise control was inoperable on the vehicle since purchase.
Vehicle experiencing problem with throttle linkage sticking. Dealer notified, and informed consumer that the problem was due to unknown buildup which is considered to be a normal maintenance charge. Consumer believed this is not normal, and is seeking NHTSA for help in this matter.
Experiencing intermittent stalling while driving and applying accelerator pedal from a stop position while making turning, etc. Dealer notified, and informed consumerthat nothing could be done, unable to duplicate the problem. Please feel free to provide further details.
While vehicle was parked and the key out of the ignition with occupant out of vehicle, vehicle rolled back a foot. This could have caused an accident and or injuries. Dealer cannot determine the problem.
While going over small puddles of water steering wheel will lock, not allowing the driver to turn the vehicle. Also, suddenly vehicle accelerated to 70mph. Dealer has inspected and repaired vehicle.
Consumer states when taking the foot off the accelerator pedal vehicle completely shut off.
Acceleration complaints in other Deville years
Frequently asked questions
How common are acceleration problems on the 1996 Cadillac Deville?
NHTSA has 21 complaints about the speed control & acceleration of the 1996 Cadillac Deville, 10% of the model year's 218 complaints. The component named most often is accelerator pedal (7 mentions).
Is there a recall for 1996 Cadillac Deville acceleration problems?
No. NHTSA lists no speed control & acceleration recall for the 1996 Cadillac Deville, though it has 2 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 1996 Cadillac Deville acceleration problems start?
Half of the complaints with a recorded mileage happened before about 90,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.