2026 Jeep Grand Cherokee L Transmission and drivetrain Problems
- Complaints
- 7about this part
- Share
- 28%of 25 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 7 complaints about the transmission and drivetrain of the 2026 Jeep Grand Cherokee L, 28% of the 25 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“On 7/16/2026 exactly 1 week after i purchase the vehicle after fueling i drove about 1 mile when the car started to misfire, when attempting to accelerate. Check engine light flashes a few times and then went off. I then attempted to reverse into my driveway and when attempting to do so the vehicle shut off completely. But started right back up. I then called the dealership and was asked to bring it in. The dealership has the vehicle about 2 days and said it has been repaired it had bad spark plugs. …”
NHTSA complaint #11754118, filed 2026-08“I was driving on the highway on 9/23/2026 at approximately 5pm CST. A disabled vehicle ahead warning flashed on the dash and I experienced sudden, unprompted high RPM surges while driving. My car started making a very loud engine sound and I could smell something burning. I could not surpass about 20 MPH. I put on my hazard lights immediately and pulled off the highway and drove to a safe space. My safety and others were put at severe risk because my car immediately slowed to 20MPH on a highway at rush hour. …”
NHTSA complaint #11766630, filed 2026-09“August 9, we were driving home when the vehicle jerked 2-3 times then the engine shut off (while in motion). This happened on a windy backroad with no way to pull over. We were able to restart the vehicle and make it home safely. Contacted Jeep on the 10, they said it was due to a spark plug recall. When driving to the dealership that morning service AWD light turned on, Jeep replaced the spark plugs and stared that fixed the problem. Driving home once picked up and service AWD light turned on again. Dealership is now stating it is the Drivetrain control module.”
NHTSA complaint #11763014, filed 2026-09“Vehicle is very jerky while transmission is downshifting. With no pressure applied to gas pedal vehicle lurches forward on own forcing me to step on brakes to correct lunging forward. At parking lot speeds and while in reverse vehicle is very sluggish and feels like stalling will occur if pressure is not applied to gas pedal. Vehicle is also sluggish and does not respond right away while entering highway , there is a delay with acceleration , this also could cause an accident as the vehicle is not speeding up correctly.”
NHTSA complaint #11756647, filed 2026-08Related service bulletins
- 11038329Sep 30, 2026The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn…
- 11035971Jul 30, 2026Transmission Control Module (TCM) Diagnostic N/A - This bulletin was released in error. SYMPTOM:
- 11035313Jul 22, 2026Transmission Control Module (TCM) Diagnostic Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the…
- 11034906Jul 3, 2026Service Transmission Message Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble…
- 11033870Jun 4, 2026Flash: Transmission Control Module (TCM) Updates Customers may experience one or more of the following: ● Intermittently during low‑speed parking maneuvers when the driver moves…
- 11033868Jun 4, 2026Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one of the following…
- 11030138Mar 9, 2026The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV…
- 11029770Feb 25, 2026Service transmission/check engine warning indicator for the 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV transmissions that have fault codes P07E4, P1DB2, P0716, P1B14, P0733, P1D90…
Transmission and drivetrain: other model years
Other parts of the 2026 Jeep Grand Cherokee L
20 complaintsFuel system
5 complaintsOther or unknown
5 complaintsForward collision avoidance
4 complaintsElectrical system
1 complaintsExterior lighting
1 complaintsVehicle speed control
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2026 Jeep Grand Cherokee L
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology