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 2003 Jeep Liberty owners, lightly cleaned up (personal details are redacted by NHTSA).
9/18/2023 I had an incident I thought something got behind brake pedal and kept me from pushing the brakes. When I drove it home. Going down the interstate I hit the gas get to speed limit. 3 times the vehicle kept speeding up hitting 80 and still wanting to climb.when I hit breaks hit was hard to press worse then hitting non power breaks and then I forced on the brakes and the vehicle started shaking. And took lot of effort to slow down. This vehicle doesn't have cruise control. Have had cliche with lights radio tac speed air while driving. Non of the air bags went off I checked recall was January to March this jeep was manufactured 12 2
Tl* the contact owns a 2003 Jeep Liberty. After coming to a stop, the vehicle accelerated independently without warning. As a result the contact's vehicle crashed into another vehicle. The air bags did not deploy. There were no injuries and a police report was not filed. The vehicle was towed to an independent mechanic, but the cause of the failure could not be determined. The body damage was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 101,000. Updated 07/18/17
While traveling rt. 36 about 10 miles south of roaring springs, pa my 2003 Jeep Liberty suddenly accelerated and I had no braking control. I swerved across the 2 lane highway onto the berm, for fear of hitting oncoming traffic. I lost all steering control that I later found to be a broken tie rod on the right front. The vehicle continued in a circular manner at an excessive speed and with two feet pressing on the brake. I could not stop. Eventually the vehicle went over a stone embankment and fell about 15 feet and finally came to rest on a plateau just above a creekbed. Because of a multiplicity of very large stones, every panel of the Jeep Liberty was severely, with one exception and that was the roof. My wife and I were seriously and hurt and transported by ambulance the closest trauma center, the altoona hospital. My wife was diagnosed with a broken back and I was intensive care. …
My husband was sitting at a complete stop at a walgreen pharmacy drive-through he stepped on the accelerator as he was leaving, and quickly let off the accelerator to make the turn to go around the building. However, the Jeep kept picking up speed. He stepped on the brakes, and kept pressing on them, but the Jeep kept going faster, only stopping when it jumped the curb and hit a brick wall. He had very little time to react. The distance from where he accelerated to the brick wall was approximately 50 feet. The skid marks started after he traveled approximately 14 feet, and were approximately 34 feet long before he hit the curb. There was another 2 feet between the curb and the wall. It damaged the bumper, tore off right front fender, crumpled the right front quarter panel, damaged some of the lights, flattened both front tires, and broke the right rim. …
I was coming to a complete stop at a speed of 30 MPH and had my foot on the brake. The engine continued to accelerate while I was pressing as hard as I could on the brake. The car lurched far enough forward to hit the bumper of the car in front of me. This is the second of two occurrences. The first was similar in nature. I was exiting the freeway after having the speed control activated. I was coming to a stop-the vehicle violently accelerated and lurched unexpectedly into the intersection. Luckily, no other car was present. Again, I pressed as hard as I could, but the vehicle continued to accelerate. I quickly change to neutral, where the engine rapidly revved to over 6,000r pm's. I am not sure what I did to finally make it stop-to frightened to remember!
While traveling on damp pavement in damp/misty (but not rainy) conditions, on a roadway with a moderate uphill slope and gradual left curve, the cruise control down-shifted from over-drive directly into 1st gear. The increased torque on the rear wheels/tires caused the car to lose rear wheel traction and the subsequent complete loss of control of the car. The Jeep Liberty spun around a total of 540 degrees and came to rest in a ditch off the opposite side of the road, some damage. This characteristic of the cruise control downshifting multiple gears has been confirmed on many other occasions in this model of car, nearly causing loss of control depending on roadway conditions.
Tl* the contact owns a 2003 Jeep Liberty. While driving at various speeds, the speedometer became inoperable and the check engine warning light illuminated intermittently. In addition, the contact stated that while driving at an unknown speed, the vehicle stalled as the check engine warning light illuminated. The vehicle was taken to a dealer, where it was diagnosed that the speedometer and rear center differential sensor needed to be replaced. The vehicle was repaired but the failure recurred. The contact mentioned that the speedometer sensor was replaced six times. The manufacturer was not notified of the failure. The failure mileage was 137,000.
Tl* the contact owns a 2003 Jeep Liberty. The contact was driving 15 MPH and attempting a right turn when the vehicle began to accelerate without the accelerator pedal being depressed. The contact depressed the brake pedal but the vehicle did not stop until he crashed into another vehicle. The air bags did not deploy. There were no injuries and a police report was not filed. The vehicle was driven to the contact's residence and had not been repaired or diagnosed. The manufacturer was notified of the incident. The approximate failure mileage was 67,000. Updated 10/17/13
While pulling out of a parking area gas pedal became stuck to the floor. Vehicle accelerated, and the consumer lost control, and struck a tree. After striking the tree vehicle struck an abutment head on and flipped completely over. Consumer suffered minor injuries and was taken to the hospital. The police did respond to the accident. The air bags did not deploy upon impact.
Dt*: the contact stated the brake and accelerator pedal are too close together. This caused an accident, while backing the contact hit another vehicle. This occurred while braking, but is unaware if the accelerator pedal was applied. There was a police report taken at the scene.
Acceleration complaints in other Liberty years
Frequently asked questions
How common are acceleration problems on the 2003 Jeep Liberty?
NHTSA has 26 complaints about the speed control & acceleration of the 2003 Jeep Liberty, 2% of the model year's 1,352 complaints. The component named most often is accelerator pedal (4 mentions).
Is there a recall for 2003 Jeep Liberty acceleration problems?
No. NHTSA lists no speed control & acceleration recall for the 2003 Jeep Liberty, though it has 7 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 2003 Jeep Liberty acceleration problems start?
Half of the complaints with a recorded mileage happened before about 33,000 miles, and 36% before 25,000 miles.
Is it dangerous?
Owners linked 12 crashes, 0 fires and 6 injuries 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.