really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
48,439 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Jeep Grand Cherokee engine problems

engine problem

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2009 Jeep Grand Cherokee Owner Comments

problem #9

Aug 012015

Grand Cherokee

  • 89,000 miles


While exiting the expressway and coming to a stop at a light all the gauges on my vehicle went out. I no longer have the following: Brake lights, turn signals, speed control, key fob, possibly air bags and general electrical components. This is the 2nd occurrence of this problem. I was almost rear ended while turning because of this issue. Vehicle is parked until it can be serviced. Dealer unable to service and would only schedule an appoint four days from today.

- Rochester Hills, MI, USA

problem #8

Mar 022015

Grand Cherokee

  • 24,455 miles
The contact owns a 2009 Jeep Grand Cherokee. The contact stated that while traveling to enter the freeway, the throttle body failed to release causing the vehicle accelerated. The contact removed her foot from the accelerator pedal but the vehicle did not slow down. The contact was able to shut off the vehicle and merged to the side of the road. The vehicle was towed to an authorized dealer for further inspection, diagnosis and repair. The manufacturer was notified of the failure. The approximate failure mileage was 24,455.

- Fairfield, CT, USA

problem #7

Aug 262014

Grand Cherokee

  • miles
On August 26, 2014, this 2009 Jeep Grand Cherokee Laredo 4X4 vehicle was involved in an accident causing serious cervical and spinal injuries to a pedestrian. This vehicle was in a parked position, accelerated without the driver touching the accelerator pedal, kept moving forward on its own Accord until the vehicle ultimately stopped after striking a building metal staircase. Please investigate this safety issue to prevent further personal injury and, or properly damage.

- St. Ann, MO, USA

problem #6

Feb 282012

Grand Cherokee

  • 15,000 miles


TL * the contact owns a 2009 Jeep Grand Cherokee Laredo (na). The contact stated that the vehicle would not accelerate past 60 mph and the check engine indicator illuminated. The vehicle was taken to a mechanic who stated that the input speed sensor needed to be replaced. The vehicle was not repaired and the manufacturer was notified. The failure mileage was 15,000.

- Grosse Ile, MI, USA

problem #5

Apr 042014

Grand Cherokee

  • 85,000 miles
After driving prolonged time on xpressway and slowing down or stopping, the Jeep hesitates, misfires and lets out giant clouds of white smoke out tailpipe after accelerating with partial or full throttle. Almost caused major freeway accident multiple times trying to switch lanes or pull onto freeway onramp. Car been into dealership 3 or more times for same complaints. Since car throws no codes and dealership can't replicate the problem on their test drives, dealer just keeps handing the Jeep back to me and saying no issue with Jeep. My Jeep has also stalled under hard braking on at least one occasion. Very dangerous condition(s) with no satisfaction from dealer service department. Chrysler also contacted and opened case file. They wouldn't authorize any work to be done to the Jeep either. Car has been serviced properly, has 90K miles currently and a lifetime warranty from Chrysler which seems worthless as Chrysler won't pick up a screwdriver to look for problem if the Jeep doesn't throw a code. Absolutely nuts.

- Boston, MA, USA

problem #4

Nov 062013

Grand Cherokee

  • 60,000 miles
I was driving on the long island expressway and as I was trying to accelerate, the gas pedal stopped working and the car slowed down. I attempted to press down on the gas pedal again, to no avail. The car started to decelerate. I had to put my hazard lights on and get on the shoulder. I put my foot under the gas pedal to see if anything was stuck under it, but there were no foreign objects. Luckily, I was not hit and I was in the right hand lane. This was a very potentially dangerous situation.

- Holtsville, NY, USA

problem #3

Jul 212013

Grand Cherokee 8-cyl

  • 90,000 miles


While attempting to park vehicle, with only brake being applied, and motor allowed to idle, vehicle accelerated. All attempts to stop vehicle by hard application of foot brake failed, and vehicle collided with a building. Subsequent investgation by insurance adjuster determined the vehicle was fast idling, possibly a tps issue. Despite many complaints to various Jeep authorized servicers, none ever disclosed a problem with this issue. Since new, the vehicle transmission has always had a tendency to grab when approaching a steep incline at idling speed, with sudden acceleration if gas pedal is gently depressed.

- East Chatham, NY, USA

problem #2

Mar 122013

Grand Cherokee 6-cyl

  • 60,000 miles
I was driving on the highway and the vehicle pulled away as in driving itself. My only control was the brakes. It was scary thank god no one got hurt. Its not the first time. I've brought this to the attention of the dealer and they told me nothing is wrong. This has happened to me 4 diff times. When I put the car on park the RPM revs up to 5000 RPM I have to immediately shut the car off. This is a safety concern and needs to be looked into immediately.

- Yonkers, NY, USA

problem #1

Jun 012010

Grand Cherokee 8-cyl

  • 12,500 miles
Vehicle suffers loss of acceleration. This can occur when merging into traffic, attempting to pass. Routinely happens after traveling on interstate at consistent speed but has happened when attempting to merge onto or off interstate. There have also been occasions when vehicle appeared to backfire discharging plume of white smoke. Diagnostics at the dealership did not show any problems but when a computer was hooked up to the vehicle, it captured unexplainable readings that astounded the mechanics. Dealership has changed two map sensors and this has not corrected the problem.

- La, LA, USA

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