Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2006 Jeep Grand Cherokee owners, lightly cleaned up (personal details are redacted by NHTSA).
Maybe hose radiator to the ac vent under the passenger cabin. My son got a 2nd degree burn on the top of his foot.the problem is not fixed.it was inspected by the local police and fire chief.there was no warning at all..
The Jeep dealer replaced my ignition switch that was part of the 2014 ignition switch recall. My Jeep continues to lose power after successfully turning on. It will turn on for a less than one minute, all the lights on the dash board will turn on, and the engine will have sudden loss of power. It can take up to an hour to get it to turn back on without it losing power again. If driven after it turn on without waiting at least 2 minutes, the car will suddenly lose power while in drive. This has been happening on an almost daily basis since 2019, which resulted in it being parked in the driveway for 6 months for fear it would turn off while driving on the freeway.
I am experiencing so many problems with my jeep. It shift out of gear then start shutting down. Lights appear all across the dash board. At times, I have difficulty in shifting gear.The clutch slip and I get this burning smell. Then engine light comes on. It slow to move after shifting it into the forward gear. Sometimes it doesn't move when I shift it into the forward gear. Then when it does, it start bucking and kicking while driving. It slows down even when you press the gas pedal. Lastly, I have major problem with my a/c. It runs cool for a second and then completely shut off.
Vehicle will all of a sudden shut off with out warning while driving. It has shut off while in motion going about 25miles per hour . I hurry and put it in park and restart it. It has restarted every time. Sometime the lights on the dash will flash for a moment but has only done that 2 times out of the 10 that it has shut off while driving
If vehicle sits for more then 8 hours you can drive it - but once the vehicle has been turned off Vehicle will not turn on for more then 5-10 seconds and will just turn off. Sometimes it says invalid key when it's the primary key and not spares. Acts as if it has kill switch. Problem keeps happening constantly
Jeep cuts out in middle of driving it says engine misfire on 3 . Driving down road will almost died or not run in traffic im lucky I havent had wreck yet to scared to drive it have seen all over the interent how bad it is mechanics cant seem to fix even jeeps own mechanics
The ignition I believe lost connection with the key fob. Multiple times while driving the vehicle will randomly just die. An when trying to start sometimes it does nothing unless you push key in a certain way.
During rain storms both driver and passenger sides are flooded with water. This has ruined carpet in vehicle and will probably rust the bottom of the car. - vehicle stationery in driveway of home. The safety belts both driver and passenger sides are not working - do not secure unless you push down hard to engage the belt into lock mode. I do not feel safe when I have to manually engage the belt hook into the lock. I had an accident and crashed into a fence, the airbag did not deploy. Vehicle in motion at time. When I start the engine , vehicle still in park mode, it accelerates in high mode without stepping on gas pedal. On a city street.
Tl* the contact owns a 2006 Jeep Grand Cherokee. The contact stated that while driving 47 MPH, the engine stalled and contact crashed into a ditch in order to avoid hitting someone. In addition, the traction control, the ABS and the air bag warning lights illuminated. The air bags did not deploy. A police report was filed and there were no injuries reported. The vehicle was not diagnosed or repaired. The contact received a notification of NHTSA campaign number: 14V438000 (electrical system) and believed the failure was related to the recall. The manufacturer was not notified of the failure. The approximate failure mileage was 77,973.
Tl* the contact owns a 2006 Jeep Grand Cherokee. While accelerating from a stop, the vehicle shook vigorously without warning. In addition, the contact observed smoke and oil leaking underneath the vehicle. The vehicle was towed home. An independent mechanic diagnosed that a piece fractured from the engine and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 153,000.
Engine complaints in other Grand Cherokee years
Frequently asked questions
How common are engine problems on the 2006 Jeep Grand Cherokee?
NHTSA has 177 complaints about the engine & cooling of the 2006 Jeep Grand Cherokee, 14% of the model year's 1,280 complaints. The component named most often is engine (21 mentions).
Is there a recall for 2006 Jeep Grand Cherokee engine problems?
No. NHTSA lists no engine & cooling recall for the 2006 Jeep Grand Cherokee, 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 2006 Jeep Grand Cherokee engine problems start?
Half of the complaints with a recorded mileage happened before about 75,000 miles, and 14% before 25,000 miles.
Is it dangerous?
Owners linked 6 crashes, 4 fires and 2 injuries to engine & cooling 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.