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 1999 Chrysler Concorde owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owned a 1999 Chrysler Concorde. The contact stated while in a parking lot as he placed the vehicle into Drive, the vehicle revved and accelerated, and the contact had not depressed the accelerator pedal. The contact stated no warning light was illuminated. The contact stated that the vehicle crossed the parking lot, jumped the curb and climbed a small hill and came safely to a stop. The police were called but no report was written. The contact injured his lower back but did not seek medical attention. The vehicle was towed to an independent mechanic and has not been diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 70,000.
I had just left church, and got into my car to come home. I put on my seat belt, moved the seat forward, checked the mirrors, and with my foot depressing the brake, took off the emergency brake, and looked over my left shoulder. As I did this, I viewed a white car stopped about two cars length behind me, waiting to exit the parking lot. They waived to me to go ahead. At this point my car was completely stopped. The column shifter was in reverse, and my foot was still on the brake pedal, when all of the sudden my car ( by itself ) went into full acceleration forward, about one and a half car lengths hitting a tree, without my shifting anything on the shifting column. The airbag did not deploy. The impact stirred up a huge amount of dirt and dust in front of my windshield. …
The vehicle was in an accident due to a malfunction of the engine. The vehicle unexpectedly began to accelerate. The owner shut off the engine and applied the brake, but the motor was going at such a high speed, the vehicle did not stop. The police did take a report. The consumer was looking for a place to park when all of a sudden the vehicle had gone at an uncontrollable speed and when the consumer shut off the ignition and braked, the consumer hit a parked vehicle.
I had just pulled into a parking space and was about to shift from drive to park when my 1999 Concorde took off jumped a curb stop and hit a tree, where the engine continued to accellerate and the wheels dug 5-6 inch ruts in the ground, before reversing jumping back over the curbing and stopping. The whole time my foot was also on the brake which didn't respond.
Accelerator malfunction. 1999 Chrysler Concorde accelerator stuck, unable to engage the braking system so turned car off. Lost steering, braking control and hit a barricade, totaling vehicle and causing concussion and head to toe bruising.
The car I was driving was a 1999 Chrysler concord that had been in excellent driving up until the time of the incident. Just three days earlier the automobile was serviced at a Chrysler dealership service center for an oil and oil filter change. I inquired at the pick up event if the brakes were okay and it was reported to me that the were fine and that everything with this automobile was fine. On Sunday, September 3, 2006, I started this automobile in my garage to go to church. After putting my seat belt on, I usually inch myself out of my garage very, very slowly. However, this time after adjusting the transmission lever from park to drive my automobile took off so fast I could not control it at all. I hit the breaks as hard as I could but my automobile would not slow down at all. Not only that, I could control the steering of my automobile at all. …
I have had my 1999 Chrysler Concorde lxi for about a year and a half. It now has 76,000 miles on it. I was pulling out of the parking lot and first noticed the speedometer wasn't working. At that point I kept driving. As I pulled out onto the road and had to accelerate I noticed my RPM's were a little high. The car seemed to be stuck in low gear. I checked the transmission fluid and the fuse for the transmission controller. Both were fine. I had the car towed. I got online and starting researching the car. It turns out that speed sensors in this car fail quite often. I spoke to the previous owner of the vehicle. He told me he already had the speed sensor replaced once just before I bought the car from him. My car is five years old, has 76,000 miles on it, and has had the same part replaced twice already. This is ridiculous. …
I put car in reverse in parking lot and it lunged forward at full throttle with tires smoking, sideswipping one vehicle and pushed parked 2nd vehicle 30 ft into parking lot isle. My foot never left the brake pedal (used to shift), and brakes were useless in trying to stop the car. After hitting the second car (totalling it) got car stopped by slamming gear shift lever into park. This is the 3rd instance of this happening in the milwaukee area that is known to us. Substancial injuries were incurred in second instance where car when through garage door with severe facial injuries. The 3rd car went through a window of a business. All 3 were 1999 Chrysler products. Chrysler refuses to accept any blame for the accident and sent us a form letter saying the car was okay when it left the factory. Our car was a Chrysler Concorde lxi, the 2nd a Chrysler lhs, and the 3rd a Dodge neon.
I own a 1999 Chrysler Concorde lxi. I have had numerous problems with this car since I have owned it. Lot of little things. Window motors, cooling fan, transmission overspeed sensor, and the list goes on. Now the air conditioner is going out, having to service it about every 2 months. Why I am writing though is the steering. Seems like it is going bad. I feel this is a safety issue and read many complaints on your web site concerning this. Why hasn't a recall been ordered for this and the speed up issue?
1999 Chrysler Concorde engine failure at 90000 whille wife and children in traffic engine failure due slug build up. Mechanic said it would cost $4600.00 to replace engine still owe 11000 on it, and cant afford to repair. Mechanic said slug build up is due to oil pump design also have ac problem and have had radiator fan failure twice , speed sensor failure, broken window clips, brake shimmy , broken recliner seat bolts
NHTSA investigations
Throttle control failure
Based on the low failure rate, the absence of failures over the past year, the absence of injuries, and odi's field investigation of incident vehicles, a safety-related defect trend has not been identified at this time.accordingly, this investigation is closed.the closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists.the agency will take further action if warranted…
Acceleration complaints in other Concorde years
Frequently asked questions
How common are acceleration problems on the 1999 Chrysler Concorde?
NHTSA has 31 complaints about the speed control & acceleration of the 1999 Chrysler Concorde, 9% of the model year's 333 complaints. The component named most often is accelerator pedal (6 mentions).
Is there a recall for 1999 Chrysler Concorde acceleration problems?
No. NHTSA lists no speed control & acceleration recall for the 1999 Chrysler Concorde, though it has 4 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 1999 Chrysler Concorde acceleration problems start?
Half of the complaints with a recorded mileage happened before about 55,000 miles, and 8% before 25,000 miles.
Is it dangerous?
Owners linked 19 crashes, 0 fires and 12 injuries and 1 death to speed control & acceleration problems on this model year. If you notice symptoms, have the car checked before driving further.
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.