2019 Jeep Wrangler transmission problems

Filed Nov 3, 2026 · Steering, Suspension · MA

The Jeep shakes uncontrollably when driving over 50 mph. A rapid braking and speed reduction to under 30 mph will stop the shaking but it will occur again and again. Stellantis has built a completely unsafe car. I can no longer drive the vehicle on the highway or with my kids in the car. I want this major safety issue repaired at the manufacturer's expense.

Filed Oct 15, 2026 · Engine, Transmission · MI · fire

On [XXX], my 2019 Jeep Wrangler Unlimited Rubicon (2.0L turbo) caught fire in the engine compartment while driving, at approximately 101,437 miles. The fire started near the turbocharger and heat shield area. There were no injuries, but the vehicle was moving on a public road with four occupants, including two young children in car seats in the rear, when the fire started. The vehicle had been returned to me four days earlier, after approximately 2.5 months at Preferred Chrysler Dodge Jeep of Muskegon, MI for a timing chain replacement. After the fire, I found that the coolant reservoir hose had come off its fitting, and the hose barb appears to have been broken and the hose pushed back on. Several under-hood trim fasteners were also missing. My best assessment is that coolant sprayed onto the hot turbo/exhaust components and ignited. The vehicle has not been altered since the fire and is available for inspection at Watson's in Ludington, MI. I reported the fire to the manufacturer. They directed me to take it to the local dealer, then instructed the dealer not to inspect or work on it. The case was escalated internally, but as of 10/15/2026 no manufacturer inspection has occurred and no one has contacted me. The cause has not been confirmed by a dealer or independent shop. The fire occurred within the vehicle's Certified Pre-Owned warranty period. As of this filing, the manufacturer has not provided towing, rental, or any other assistance. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 24, 2026 · Transmission · NY

The 48-Volt Lithium-Ion eTorque Hybrid Battery Pack (Mopar Power Pack Unit/PPU) on my 2019 Jeep Wrangler Sahara Unlimited (~55K miles) failed. The failed component may be available on video by the dealership. Check engine light first appeared early XXX. Earliest dealership appointment was late August 2026. At that visit, dealer diagnosed DTCs P0A94 (recurring, including P0A94-03) and U0412, and performed a software update flashing the BPCM (Battery Pack Control Module) firmware from 05057870AN to 05057870AV per a Technical Service Bulletin. This was covered under warranty at no charge; vehicle was returned to me. Days later, the check engine light returned along with a battery warning light and additional indicators, including ABS among others I could not fully identify. The vehicle then lost power and stopped running while in the roadway, disabled in an active lane of travel — a safety hazard to myself and surrounding traffic. Vehicle was towed to the dealership XXX. On this second visit, the dealership attributed the failure to moisture exposure and corrosion at the PPU connector/harness, denied warranty coverage, and charged me $4,561.90. I received the repaired vehicle XXX. I opened a case with Stellantis Customer Care (Case #XXX) with case manager [XXX] to request a technical review of the failure and the warranty denial. [XXX] stated he contacted the dealership five times seeking information or resolution and received no response. He offered rental car reimbursement up to $50/day during the repair. Dealership diagnosed and repaired the vehicle on both occasions. No known inspection by manufacturer, police, or insurance beyond the review requested under Stellantis case #XXX. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 9, 2026 · Engine, Transmission · AZ · fire

VEHICLE & INCIDENT: 2019 Jeep Wrangler JL 2.0L Turbo. While climbing an extended grade on Hwy 87, vehicle experienced a sudden sluggish throttle anomaly and rapid coolant temperature spike from ~215F to 255F under load. Vehicle was pulled off and shut down within ~20 seconds. SUSPECTED FAILURE MODE & UNDERHOOD FIRE: Upon opening the hood, pressurized coolant had sprayed across the engine bay from a split in the smaller rubber hose branch of the engine coolant outlet assembly (Mopar PN 68280797AC). The hose split longitudinally ~13mm with the center ~32mm from the hose end. The vehicle is equipped with a Baja Designs T-Fitting to replace 68280784A The hot, pressurized coolant sprayed directly onto the exposed, center section of the turbocharger between the compressor and turbine sections and on the turbine section itself. The coolant is suspected to have flash-ignited on contact with the turbo, creating an active under hood fire that began spreading to the hood insulation liner. The fire was successfully doused roadside with water, preventing a total vehicle burn-down. No other fuel sources were noted and the lines to the turbocharger were intact and did not show evidence of a leak. SAFETY CONCERN / HAZARD FOR the federal safety agency: 1. FIRE HAZARD: Pressurized factory coolant hoses and plastic junctions on the 2.0T GMET4 are routed in close proximity to the unshielded turbine housing. A hose rupture under normal grade-climbing thermal loads results in high-pressure atomized coolant hitting an ignition source well above its auto-ignition point. 2. COMPONENT DEGRADATION: Rubber lines near the engine outlet appear susceptible to heat-fatigue failure under high ambient/high load conditions, posing a sudden fire hazard at highway speeds. REPAIR: Roadside trim/re-clamp of the split hose allowed temporary transit. Replacing full hose assembly (68280797AC), upgrading radiator lines, and performing a full OAT coolant flush/vacuum refill. No oil contamination was noted after the incident.

Filed Jul 3, 2026 · Transmission · VA

There was a recall done on the clutch system back in 2023 and now the same problem has occurred, and I have to replace my entire clutch system.

Filed Jun 14, 2026 · Electrical, Fuel system · MA

The 48V eTorque Power Pack Unit (PPU), BPCM, and associated cables failed on my 2019 Jeep Wrangler, causing the vehicle to stall and lose all acceleration while driving on the highway. All components are available for inspection upon request. In June 2025, a non-Jeep service center identified stored diagnostic code P0A9C-00 (48V hybrid battery temperature sensor circuit performance failure) along with multiple low voltage codes in the power steering system. The technician noted the issue needed to be addressed by an authorized Jeep dealer, as there was insufficient information to perform a repair on the 48V hybrid system. In September 2025, while driving on the highway, the engine stalled and the vehicle completely lost acceleration and would not restart. The vehicle required towing to an authorized Jeep dealer. A sudden and unexpected loss of acceleration and engine stall on a highway creates an extreme risk of rear-end collision and potential serious injury or fatality to the driver and other motorists. The problem was confirmed by an authorized FCA/Jeep dealer who found the same diagnostic code P0A9C-00, along with corrosion buildup on the 48V connector pins and BPCM pins. Two separate FCA STAR cases were opened by the dealer. The Power Pack Unit Battery was identified as the failed component. The dealer confirmed that the 48V cables required for repair are currently unavailable through Chrysler under any parts specifier, meaning FCA cannot supply the necessary parts to remedy this known defect. The vehicle has been inspected by an authorized FCA dealer on two separate occasions nine months apart, with the defect remaining unresolved on both visits due to FCA parts unavailability. Warning symptoms including low voltage codes and the P0A9C-00 fault code were first identified in June 2025, approximately three months before the highway stall event, indicating this was a progressive and worsening defect. The issue was first reported in June 2025 and remains unrepair

Filed Jun 11, 2026 · Transmission · CO

In June 2025, I had the clutch recall (the federal safety agency 23V‑116) performed on my 2019 Jeep Wrangler at AutoNation Jeep Southwest in Littleton Colorado. Prior to this recall repair, the vehicle had no transmission faults or warning lights. Following the recall work, I began experiencing a recurring 'Service Transmission' warning. On a return visit, the dealership discovered they had incorrectly reinstalled the shifter cables during the recall repair, making it difficult to shift into first gear. The cables were redone. The 'Service Transmission' warning continued after the cable rework. The dealership performed a software flash on a subsequent visit, which did not resolve the issue. The vehicle later experienced a 'Service Transmission' warning accompanied by a clutch overheat alert and limp mode activation. The dealership has since diagnosed fault codes P082C and P082F (gear lever position sensor circuit high) and is recommending a transmission range sensor replacement at my expense. The dealership has acknowledged they cannot confirm the root cause of these codes. When I contacted Jeep Customer Care, they called the dealership and accepted their assessment that the issue is unrelated to the recall repair. I believe the ongoing fault codes are a direct result of the defective recall remedy, specifically the incorrect shifter cable installation and subsequent cable disturbance during rework. I am requesting the federal safety agency investigate whether the recall remedy as performed at this dealership is defective.

Filed Apr 26, 2026 · Electrical, Engine · CA

Jeep engine stopped running while driving on high way 20.Had to coast to stop in middle of side street.Jeep did start back up but would not go into drive until an hour of trying to get it into gear.Drove it home.Next morning I started jeep but would not go into drive.It was stuck in park.

Filed Aug 28, 2025 · Electrical, Transmission · VA

Alternator stopped working no warning no lights nothing just stopped.

Filed Aug 19, 2025 · Electrical, Steering · WA

I drove over a rough patch/bump in the road. A ton of warning messages and failure lights activated on the dash. In addition to the check engine light, there were warnings for electronic stability protection, sway bar disconnect, ABS failure, power steering failure, shift lever malfunction. In addition to these malfunctions a failures, the windshield wipers turned on un-commanded and the radiator fan went into the highest possible speed, the digital engine temperature gauge failed, and both the digital and analog speedometers failed. This happened on a arterial road, losing power steering and braking at ~30mph unexpectedly was a shock, but manageable. At highway speeds it likely would have led to an accident or collision. Unfortunately, I don't have any documentation of the failure lights and systems failing, but it had happened several times prior to this occurrence, albeit only with dash warning lights, no actual system failures. After the system failures, I stopped driving the vehicle. The problem appears to be somewhat widespread and is caused by a failing CAN-C BUS. A quick google search will reveal NUMEROUS descriptions on the same dangerous issue. This thread seems to clearly expIain the root of the issue with the CAN-C BUS: [XXX] I replaced my old CAN-C BUS (p/n 68321746AA) with a new part and it appears to have resolved the issue. I have saved the old CAN-C BUS for inspection if the federal safety agency is interested. It looks exactly like the failed BUS in the linked reddit thread above. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)