2021 Jeep Grand Cherokee: check engine light

Filed Aug 4, 2026 · Fuel system, Transmission · CT

Electronic Throttle Control warning light comes on upon starting vehicle while extended crank occurs. When starting car, the push to start feature will not turn over and continuously cranks multiple times. Issue is intermittent- never know when it will happen which makes it difficult to replicate at service center. Took car into 2 mechanics on separate occasions and finally to the Jeep dealership for service. Because issue couldn’t be duplicated- nothing was done. However, recently while driving, same extended crank pattern noise and unstable/rough propulsion occurred while driving on the highway. Same Electronic throttle control warning light came on along with the check engine light. Also cruise control and the auto On Off feature became disabled. I scheduled service with my mechanic as soon as possible and they found the stored code was related to Technical Service Bulletin 2014-004-25 REV.B. This bulletin lists the symptoms I described yet the dealership did not perform the fuel pressure Test and Replace Fuel Pressure Regulator. I called the dealership to schedule warranty service for this TBS and they gave me difficulty acknowledging the TSB was issued for my make/model/year and scheduling a service appt. I spent the last few hours reading all of the complaints on the federal safety agency for 2021 Jeep Grand Cherokee and it is alarming how many of the complaint are for this specific issue. It is dangerous for anyone on the road to be driving in a vehicle you can’t rely on to propel you forward when you press the gas or stall due to faulty fuel pressure regulator amid traffic. An investigation should be done. Furthermore, in reviewing other recalls, I found this is a recurrent issue for Jeep. It appears they’ve been various safety recalls issued for this in the past for vehicles made from 2011-2020. How they haven’t addressed it in new models is appalling. For owners of the vehicle, it’s difficult to have any leverage with dealership since it is not easy to replicate on demand.

Filed Mar 25, 2026 · Electrical, Engine · PA

I am reporting a repeated safety-related issue involving my 2021 Jeep Cherokee Overland. The vehicle has experienced ongoing engine misfires and overheating, which create unsafe driving conditions. The issue presents as follows: -Engine begins to misfire, causing rough operation and shaking. -The check engine light flashes intermittently indicating active misfire. -Vehicle performance becomes inconsistent, with concern for loss of power while driving. -Vehicle experiencing coolant loss/overheating, concern for engine failure. These conditions create a serious safety risk, as the vehicle may lose power unexpectedly or become inoperable while driving. Multiple repair attempts have been made, including replacement of ignition components (coils and spark plugs) and other related service. The issue continues to recur, and the root cause has not been resolved. Despite repeated attempts to resolve the issue through the dealership and manufacturer, the problem persists and the vehicle remains unreliable. The manufacturer has not provided a resolution despite multiple attempts, and communication is unsuccessful I am submitting this complaint due to ongoing safety concerns and a lack of resolution.

Filed Feb 16, 2026 · Transmission · MI

Repeated cam shaft failure. The vehicle had a sudden loss of power. This has happenbed three times in the last 12 months. It is currently at a stellantis dealership in michigan. There is usually n o prior warning. The check engine light comes on as soon as the issue starts.

Filed Sep 25, 2025 · Airbags, Electrical · 101,000 miles · NM

The contact owns a 2021 Jeep Grand Cherokee. The contact stated that upon starting the vehicle, the messages "No Seat Belt", "Service Air Bags", "Service Seat Belts" and "Auto Park Disabled" were displayed. The contact stated that the failure had occurred with the driver and the front passenger's side seat occupant wearing their seat belts. Additionally, the brake and the check engine warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the Occupant Restraint Controller (ORC) had failed, and the loss of communication with the ORC had caused the electrical failures. The contact related the failure to the federal safety agency Campaign Number: 21V873000 (Air Bags), but the dealer informed the contact that the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 101,000.

Filed Aug 7, 2024 · Driver assistance, Steering · IL

Frequently all lights go on while driving check engine goes on here and there on the highway. Loud noise when you start the car and continues for about 2 min after the car is turned off as well.. All lights went on and was unable To move the vehicle in the middle of a street. I have taken the vehicle in several times to 2 different dealers and I am told there’s nothing wrong with it. It’s a danger to my family and I for the car to continue to do these things as the car is unable to be moved..

Filed Jul 15, 2024 · Transmission · 18,000 miles · FL

The contact owns a 2021 Jeep Grand Cherokee. The contact stated while driving 60 MPH, there was an abnormal sound coming from the engine compartment and the vehicle started shaking violently. The vehicle then briefly lost motive power and was unable to accelerate as intended before returning to normal functionality; however, the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 18,000.

Filed May 30, 2024 · Electrical, Engine · NY

I was driving approximately 55 MPH on the highway when my vehicle suddenly lost all acceleration. I received an alert on the dash and a chime - the alert stated "Shift to P to Start" - with no other warnings and no CEL or Check Engine light. Pressing the gas, even to the floor, did nothing. I was forced to brake the car to a stop on the shoulder, shut off the engine, and restart the vehicle. Afterwards, I experienced some slight hesitation which resolved, and then was able to drive the rest of the trip without issues. Having the vehicle lose all power on the highway without warning is a serious safety issue.

Filed Mar 3, 2024 · Engine, Fuel system · IL

It has been observed that the antifreeze and oil are intermixing in the antifreeze reservoir, causing the check engine light to illuminate and the system to register a code of PC304. This particular code is indicative of a cylinder misfire, which can cause the car to stop functioning properly and eventually lead to potential engine damage. To resolve this issue, it is imperative to replace the oil cooler filter adapter and flush the engine. This will ensure that the antifreeze and oil are no longer mixing and the engine is functioning efficiently. Therefore, it is highly recommended to take immediate action and get the necessary repairs done to avoid any further damage to the engine.

Filed Feb 27, 2024 · Electrical, Steering · MA

I went to turn on my Jeep Grand Cherokee L and received a "service power steering error message". I turned off the car, and when I went to turn it back on the reverse detection warning went off, the odometer consistently blinked and the service engine light came on. I was unable to reverse the car or drive the car forward and required it to be towed. I had two small kids in the car without power steering so significantly at risk. The vehicle is enroute to the local Jeep dealer and there were no warning signs or issues with the car prior.

Filed Jan 24, 2024 · Engine, Transmission · 36,899 miles · NY

The contact owns a 2021 Jeep Grand Cherokee. The contact stated that while driving approximately 50 MPH, the vehicle started losing motive power before stalling and shutting off. During the failure, the check engine warning light was illuminated. The messages "Service Shifter" and "Transmission Temperature High" were displayed. The vehicle was later towed to the local dealer and was reprogrammed; however, after retrieving the vehicle, the failure persisted. The manufacturer was notified of the failure. The failure mileage was 36,899.

Filed Oct 12, 2023 · Electrical, Engine · WA

This was 5 -6 times my new car broke down 3 times for fuel pump problem then i have engine light on more than4-5 times . Now its still on they fixed it 2 month ago. I just buy this brand new car in 2021. Not completed 3 years yet and having 56700 kms on it .

Filed Jul 11, 2023 · Electrical, Steering · NY

On May 4, 2023, immediately upon starting the car, warning lights were illuminated: Blind Spot Alert Unavailable - Service Required; Stop/Start Unavailable Service Stop/Start System; Service Electronic Stability Control; Oil Change Required; Service Power Steering; Check Engine Light. Vehicle had no power steering. It was taken to the dealership several hours later, and at that time no warning lights came on and the car had power steering. Dealership indicated that there was nothing wrong with the vehicle. On July 1, while driving 75 mph on I-95 in New Hampshire, while on a road trip from NY to Maine, multiple warning lights illuminated and vehicle immediately lost power steering. I was barely able to get it to the shoulder. Not one Jeep dealership in the area was available to see the car. A local mechanic was able to hook it up and determined that the car lost connectivity. He agreed to keep the car while we continued on our trip with a rental car we found and contacted our Jeep dealer. Two days later, while waiting for our Jeep dealership to tow it home, we learned that the vehicle was completely dead and won't even accept a charge to the battery. Chrysler Customer Service was called and a case was opened on July 3rd. Upon calling back on July 5th, I learned that they "closed" the case. No one could explain to me why and I asked for it to be reopened. Called back on July 11th and spoke with a different representative who indicated the case was "closed" and there was no indication of my call from July 5th. Reiterated and clarified all information and now await a call from a Specialist. The car is still not in NY and is still at the mechanic in NH waiting to be picked up by Jeep to be inspected and fixed. My safety and that of my family, and those in the cars around me, were put at risk as a result of this incident as I lost the ability to steer the vehicle while traveling at 75 mph.