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 2002 Jeep Liberty owners, lightly cleaned up (personal details are redacted by NHTSA).
On 10/1/16 I was pulling into my driveway to park my 2002 Jeep Liberty when the vehicle suddenly accelerated at a high rate of speed, crashing through my garage door. With both feet on the brake pedal and the hand brake applied the Jeep would not stop. It smashed into my wife's car parked in the garage, slamming it into the garage refrigerator. With brakes still applied I attempted to shift to neutral to shut off engine when it slammed into reverse and at great speed careened out of the garage and down the street. At no time did I feel I had control of my vehicle. It finally stopped when it hit shrubbery and small boulders. When I start my Jeep when engine cold,the RPM's are high as though I pushed doen on accelerator. On 6-13-15 while at a traffic light waiting for the green light (foot on brake)the Jeep suddenly accelerated and smashed the car in front of us, causing extensive damage. …
Tl* the contact owns a 2002 Jeep Liberty. The contact stated that while driving approximately 45 MPH, the vehicle stalled without warning. In addition, the contact stated that the vehicle accelerated independently without warning. The vehicle was taken to an independent mechanic where the technician informed that the vehicle was operating as designed but the failure recurred. The contact also mentioned that another vehicle crashed into the rear of the vehicle. As a result the contact crashed into another vehicle. The air bags failed to deploy. There was a police report filed and no injuries sustained. The vehicle was taken to an independent mechanic, but was not diagnosed. The front end was repaired. The manufacturer was not notified of the failure. The failure mileage was 2,000.
When applying the brakes to stop the vehicle has spontaneously accelerated to a very high speed even though you are standing on the brake with both feet. The back wheels are spinning out of control, burning rubber, and you have to put the vehicle in neutral and turn off the engine. It happens intermittently and has happened several times (all on city streets). We have had two different modules replaced (don't remember what they were called) and it continues to happen.
I was driving on the highway with cruise control on doing about 60 MPH when suddenly the Jeep Liberty started jerking and the RPM needle arm and the speedometer arm started going crazy up and down. The Liberty started to slow down so I had to press on the gas pedal to maintain speed. The speedometer quit working and so did the cruise control , the auto door locks also quit working. The motor also started to die whenever I slowed down or come to a stop at a stop sign or red lights. Where its dangerous is when I am slowing down to make a turn and going in to it or half way in to it the motor dies and I lose the power steering. It takes alot of strength to complete the turn safely. I took the Liberty to a repair shop where they hooked it to a analyze machine. It said the speed sensor was bad, I had it replaced but it didn't fix anything. …
On July 23, 2015, while driving on the interstate highway, at approximately 55 miles/hour, the odometer, speedometer and cruise control simultaneously stopped working for no apparently known reason. When arriving at my destination in another state, (approx. 60 miles), I researched the internet for potential problems. A number of other 2002 Jeep Liberty owners had experienced similar problems. Additionally, several owners had experienced engine stalling when braking at a stoplight or intersection. On July 28, 2015, when traveling on an interstate highway, I pulled off to the safety lane to take a telephone call. While I was slowly pushing on the brake pedal to move safely to curb lane, the engine stopped working, as did my steering. Quick thinking - having read prior owners' comments - told me to put the car in neutral and turn the ignition key on. That worked! …
Tl* the contact owns a 2002 Jeep Liberty. The contact stated that the speedometer failed and caused an unexpected acceleration. The contact was accelerating from a stop light when the vehicle surged forward and caused the contact to crash into the rear of another vehicle. No one was injured, but the contact had the vehicle inspected by two dealers and was told there was nothing wrong with the vehicle. The contact stated that when the vehicle was sitting at a stop light the speedometer would read 80 MPH and the vehicle would rapidly accelerate when the brake was released. The vehicle was not repaired. The VIN was not included. The failure mileage was 133,000 and the current mileage was 136,000.
Tl* the contact owns a 2002 Jeep Liberty. When coming to an idle speed and depressing the brake pedal, the vehicle independently accelerated. The contact mentioned that excessive force was required on the brake pedal in order to stop the vehicle. The vehicle was taken to an independent mechanic. The mechanic stated that the throttle body needed to be cleaned and the idle control needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 118,000. The VIN was not available. Updated 5/26/15 the consumer was informed the brake and accelerator pedal were too close together. Updated 06/18/15
The car chugg in and out goin down the road if feels like the transmission is goin to fall out of it the it dies the steering so so bad it feels like a tire is goin to fall of at any moment the valve cohere gasket needs replaced the brakes are non existing I almost crashed into some e head on after it died on me while I was goin 50 MPH down the [redacted] I have only had the car for 2 week hobart auto sales have it to me in replace of a vehicle they had sold me that didn't have a title to it.
Tl* the contact owns a 2002 Jeep Liberty. The contact stated that while approaching a stop sign at an intersection, the contact depressed the accelerator pedal and the engine revved up and accelerated forward. The brake pedal was then depressed however, the engine remained revved up. The contact turned off the vehicle and functioned as designed after restarted without further failure. The vehicle was not taken to be diagnosed nor repaired. A dealer was not contacted. The manufacturer was not made aware of the failure. The failure mileage was approximately 200,000.
Tl contact owns a 2002 Jeep Liberty. The contact stated that while sitting at a red light with vehicles in front of her the vehicle began accelerating forward and the back wheels were spinning with smoke coming from the rear end. The contact put both feet on the brake pedal and the acceleration stopped. She drove the vehicle home and called Chrysler. They stated that since there were no recalls there was nothing they could do. The vehicle was not repaired. The VIN was not available. The failure and current mileages were 62,000.
Acceleration complaints in other Liberty years
Frequently asked questions
How common are acceleration problems on the 2002 Jeep Liberty?
NHTSA has 43 complaints about the speed control & acceleration of the 2002 Jeep Liberty, 2% of the model year's 1,808 complaints. The component named most often is accelerator pedal (3 mentions).
Is there a recall for 2002 Jeep Liberty acceleration problems?
No. NHTSA lists no speed control & acceleration recall for the 2002 Jeep Liberty, though it has 8 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 2002 Jeep Liberty acceleration problems start?
Half of the complaints with a recorded mileage happened before about 102,000 miles, and 8% before 25,000 miles.
Is it dangerous?
Owners linked 10 crashes, 1 fire and 7 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.