2016 Jeep Grand Cherokee: check engine light

Filed Jan 27, 2026 · Engine · 129,045 miles · PA

The contact's son owns a 2016 Jeep Grand Cherokee. While the owner was driving at an undisclosed speed, the check engine warning light illuminated. The contact was informed that the vehicle had been running rough and idling roughly prior to the warning light becoming illuminated. The owner had taken the vehicle to a local dealer to be diagnosed. The dealer retrieved DTC: P0303 (Misfire in Cylinder #3). The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 129,045.

Filed Jul 2, 2025 · Transmission · 155,347 miles · GA

The contact owns a 2016 Jeep Grand Cherokee. The contact stated that while in park(Park) and attempting to shift to drive(D), the transmission failed to shift to the desired position. The check engine warning light was illuminated. The contact stated that a handheld diagnostic machine was used to retrieve DTC: P1DB8 and P1DB8-00. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 155,347.

Filed Feb 13, 2025 · Engine · 111,000 miles · TX

The contact owns a 2016 Jeep Grand Cherokee. The contact stated that while the vehicle was idling, or at a complete stop, the vehicle was shuddering with the check engine warning light illuminated on the instrument panel. The contact used a code reader and retrieved a DTC for a stuck intake valve in the high lift position. The manufacturer was notified of the failure and referred the contact to a local dealer to have the vehicle diagnosed. The vehicle was not yet repaired. The failure mileage was approximately 111,000.

Filed Jan 15, 2025 · Engine · CT

During a routine trip, in a suburban area, on a cold winter morning my 2016 Jeep Grand Cherokee Laredo was running rough and losing power as soon as I started it. The engine light came on and we immediately stopped driving and had it towed for repairs. The Dealer diagnosed the problem by observing that the front of the engine rose up when the gas pedal was pressed, and the engine was loose. We are concerned this failure could have resulted in engine falling out of the car, which could have caused a catastrophic accident, fire from the loss of fuel, and loss of life or serious injuries. The engine mounts failed at about 76,101 miles. This did not result in an accident or damage This problem was diagnosed and repaired by the Stafford, Chrysler Jeep Rambler Dealer (the Dealer) at 121A West Stafford Rd, Stafford Springs CT who can be reached at 860‑684‑8877. The Dealer stated that it was unusual for the engine mounts to fail at such a low mileage unless there was an accident or heavy usage (we do not know of any such issues). We bought the car the certified used from Bolles Motors (the previous owner of the Dealer) with 46,370 miles. The Carfax showed regular maintenance and did show any accidents. We drove only the car 29,731 miles before the engine mounts failed. A copy of the receipt and photos of the engine mounts are attached.

Filed Apr 9, 2024 · Engine · 130,000 miles · MD

The contact owns a 2016 Jeep Grand Cherokee. The contact became aware of an oil leak coming from the engine. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was discovered that oil had leaked into the coolant tank. The dealer was then notified of the failure and an appointment was scheduled to have the vehicle inspected. The manufacturer was notified of the failure and informed the contact that there was no recall on the VIN related to the failure. The contact was referred to the federal safety agency Hotline for further assistance. The vehicle was not yet repaired. The failure mileage was approximately 130,000.

Filed Feb 29, 2024 · Electrical, Engine · CO

I've had issues with my vehicle since 2021 -engine light first appeared on the dashboard and towed my car to a Jeep dealership. Vehicle was "repaired" (have the documentation, if needed), but the engine light remained on. I have since driven this vehicle for nearly 3 years with the engine light on, bringing it into different Jeep dealerships (all documentation on record if needed) to repair and was told there was nothing they could find wrong with the engine. Last year (2023) my electronic stability control and 4WD lights came on in addition to the engine light. My car was sliding all over the road and my 4WD was not engaging at all. Brought vehicle to Jeep dealership for repair, was told ABS module needs to be replaced and the traction control is malfunctioning; no 4 wheel drive engagement; that the ABS module has been discontinued and the only way to replace this is to get an after market part. Contacted Mopar and was told there is "no way of knowing if it's available and it's beyond their capability". I was told the after market part would be tied to a specific VIN. I then contacted the Jeep Dealership- Parts department and explained the situation, asking if there's any other way I can fix this part in my vehicle. Was told there's nothing I can do since it's discontinued, that it's odd that a part for a 2016 vehicle would be discontinued, and I could check junkyards for parts but am not likely to find a match since my vehicle is not that old. I live in Colorado and in the last 2 winter months have been terrified to drive when it rains or snows because I have NO traction and am sliding THROUGH traffic lights and stop signs, even going at a very slow speed. I ended up in the next lane over when slowly driving up a hill on a main road. The value of this 2016 vehicle is miniscule compared to value when I purchased; this places safety of MYSELF AND OTHERS at risk. My partner is experiencing a similar issue with his 2014 Cherokee - discontinued part and safety issues.

Filed Oct 3, 2023 · Engine · IL

2016 Jeep Grand Cherokee started to have rough idle when stopped at light or parked. Turns out the VVT Solenoid (Front #2 cylinder) went bad. Poor design by Jeep/Chrysler that could cause a safety concern and even internal damage to engine. The VVT Solenoid from (Hawk Chrysler Jeep in Forest Park, IL) cost $143.00 w/o tax part #5047897AC. Part and vehicle is available for inspection at anytime. My incident occurred on Oct 1, 2023 in the middle of intersection making a left turn when I experienced rough idle. The next day the check engine light came on triggered code P0302 misfire #2 cylinder. Normal vehicle cylinder misfire would be due to bad ignition coil, plug, vacuum leak or fuel injector but not Chrysler product. That's when I noticed an abundance of Jeep Grand Cherokee owners from 2016/2017 complaining about VVT Solenoid causing misfire and rough idle. Independent repair facility confirmed VVT Solenoid was faulty and caused rough idle issue. Please open a vehicle recall for 2016 Jeep Grand Cherokee for faulty VVT Solenoid to cover owners repairs and parts to resolve this poor design by manufacturer. Thanks! [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 30, 2023 · Electrical · 30 miles · AL · fire · 1 injury

The contact owns a 2016 Jeep Grand Cherokee. The contact stated that while driving at 30 MPH, he smelled smoke emanating from the rear passenger seat. After a visual inspection, he observed a fire. The local fire department was able to extinguish the fire. A police and fire report was filed, but no injuries were reported. The contact stated he sustained a nondescript fire-related injury to his right leg but did not seek medical attention. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic, who determined an electrical software system wiring fault. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

Filed May 10, 2023 · Engine · MI

Water pump issue. While driving, the thermometer gauge suddenly went to "H", check engine light came on, no smoke seen and the car suddenly stopped. Coolant confirmed in the tank. The incident happened without warning and was frightening. The car was towed by AAA road service to Olathe jeep dealership and awaiting additional diagnostics. Please advise on the recalls. FCA/Mopar acknowledges issues with water pumps and head gasket issues related to leaks. Please advise.

Filed May 9, 2023 · Engine · MI

On May 8th, Son driving Jeep to work and the thermometer gauge suddenly went to "H" check engine light came on, no smoke seen but the the car stopped suddenly. There was coolant in the tank.This incident happened without warning and was quite frightening. Had the car towed by AAA to Jeep dealership in Olathe Ks. Now awaiting diagnostics. It's been a day and a half and the dealership is unsure of what is going on. please help/advise.

Filed Mar 19, 2023 · Engine · GA

(2) FAILURES; (1) failure of the engine oil filter assembly (BECAUSE IT WAS PLASTIC). No warning whatsoever, only caught because I noticed oil leak. turns out the filter assembly cracked, pump at least 3 quarts of oil into radiator. COULD HAVE BEEN A CATASTOPHIC FAILURE AT HIGHWAY SPEED - ENGINE WOULD HAVE LOCKED UP. - Cost to repair:$1,477.39 Mileage 128,766 (2) failure of multiple rocker arms, only symptom was flashing check engine light under heavy acceleration. NO OTHER WARNINGS. engine effectively stops functioning correctly. Stopping car, turn off and restart- NO CHECK ENGINE LIGHT. COULD HAVE BEEN CATASTROPHIC IF OCCURS DURING PASSING, ESPECIALLY ON MINOR ROADS. Cost to repair: $2,479.75 Mileage: 142,724 BOTH ARE CAUSE BY DEFECTIVE PARTS INSTALLED IN/ON ENGINE. RECALL FOR THESE ISSUES IS NOT ONLY WARRANTED, BUT DEMANDED.

Filed Jan 19, 2023 · Engine, Transmission · AL

Over a 3 year time span my 2016 Jeep Grand Cherokee has on multiple occasions had an extremely rough idle, has a hard time accelerating and car drives extremely rough and bumpy. I’ve taken it to multiple different auto shops and all they ever do is change spark plugs OR they just don’t know what’s wrong. No engine light illuminated and no codes. Spark plugs changed March 2020, august 2020, January 2021 and now January 2023 I’m having this problem again and the shop says they don’t think it’s spark plugs . I just want this resolved. This cannot be safe!