Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2018 Jeep Wrangler owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact's son owned a 2018 Jeep Wrangler. The contact stated that while driving at 50 MPH, there was a fire coming from the rear end underneath the vehicle. The fire department extinguished the fire. A police report was filed. There were no injuries. The vehicle was deemed totaled by the insurance company. The vehicle was towed to a tow lot. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 38,000. The VIN was not available.
My wife and I were at a stop light behind a box truck in our 2018 Jeep Wrangler, about 15 feet between us. I had slowed to stop and had my foot on the brake. All of the sudden the Jeep reved up (idle increase), did not see the tachometer, and with my foot on the brake accelerated into the box truck in front of us. When it started to accelerate, I pushed the brake peddle to the floor to stop the Jeep but it did not do a thing. I see 2 problems her: 1. The acceleration when stopped 2. The brake did not hold. There were no injuries or damage to the box truck. We were able to drive the Jeep about 20 miles to the dealer we bought at. It is ow being worked on in the body shop. The Jeep dealer technicians did a computer check on any codes that were activated, but unfortunately all after the fact.
The contact's wife owns a 2018 Jeep Wrangler. The contact's wife stated that while driving at 25 MPH, the vehicle made an unusual sound. The vehicle was taken to the dealer, where it was diagnosed that the skid plate had failed and needed to be replaced. The manufacturer was made aware of the failure by telephone. The failure mileage was approximately 53,000.
My 2018 Jeep Wrangler JL Sport is experiencing multiple premature engine failures that present a serious safety risk: Vehicle overheats while driving. Recurrent misfire on Cylinder #5 (DTC P0305). White exhaust smoke with a sweet coolant smell on cold start. Coolant loss despite recent refill. Oil contamination with metallic particles found during inspection. Valvetrain noise from the right bank, suspected intake camshaft wear. These conditions create a risk of engine seizure or sudden stalling while driving, which could cause a crash. Manufacturer awareness: Jeep/Mopar has issued bulletins acknowledging these exact problems, including: TSB MC-11018482-0001 (May 2025): Intake camshaft/rocker wear causing misfires (P0301-P0306). Customer Satisfaction Notification ZD8 (2023): Coolant inlet tube fastener issue causing coolant leaks and overheating. …
The vehicle is a 2018 Jeep Wrangler with a 3.6L engine and approximately 124,000 miles. The engine has experienced a failure involving multiple components, including suspected head gasket failure, significant oil loss with no visible external leak, low oil pressure, and engine knocking. Diagnostic trouble codes P0365 and P06DD were present, indicating camshaft position sensor issues and oil pressure control failure. The vehicle is available for inspection upon request. This condition creates a safety risk due to the potential for sudden engine failure and loss of power while driving, which could occur without warning and increase the risk of an accident. The problem has been confirmed by an independent repair facility, which identified low oil levels, coolant loss, and symptoms consistent with internal engine damage. The vehicle has not been inspected by the manufacturer. …
there is a recall, 19A, that has no fix yet. the "this-might-happen" happened to me. clutch plate hot, hole through transmission, near melted fuel lines. got it fixed, major work $6000. Chrysler won't reimburse me because "there is no fix for the recall yet." that is the point. my car sustained major damage due to the recall issue with no fix. when they do find a fix, the replacement parts that i have now will still have to be fixed. nothing, including 3 weeks rental, covered under extended warranty because it is a recall issue. recall reimbursement documentation not processed because there is no fix. they have been running me around for almost 2 weeks. i am not someone who can drop $6000 without major pain. i paid with what cash i had, financed what i could at 23%, and had to have a friend use her credit card for the rest. i have nowhere left to turn.
The fuel pump relay that is embedded within the Totally Integrated Power Module (TIPM) failed on my 2018 Jeep Wrangler JK Unlimited after only 47391 miles, causing intermittent engine stalls and problems starting. When taken to the Sisbarro Deming, NM CDJR dealership for repair, there were no replacement TIPMs in the stock system available to fix my vehicle, despite my vehicle being only 7 years old. This suggests an abnormally high rate of failure if the manufacturer is unable to maintain an adequate stock to support their vehicles. Given this has been an issue with Jeeps of previous model years (1), it is evident the problem has not been addressed yet. (1) https://www.autosafety.org/cas-calls-nhtsa-investigation-chrysler-totally-integrated-power-modules-tipm/
1. The power steering, gauge cluster, multifunction display, wipers, door locks, ignition on/off, blinker and most other electronic aspects fail or operate without command. 2. The speedometer does not show speed, power steering fails entirely or intermittent including in turns, turn signals fail to indicate, traction control shows failure, abs shows failure, 4wd shows failure, airbags show failure. Vehicle turns off while on highway due to fuel sensor indicating empty even though the car is filled with at least half a tank. 3. Yes, multiple times, Demontrond Jeep Conroe, Tx 4. Yes by Demontrond Jeep Conroe, Tx 5. All warning lights illuminate at time of failures. No lights were observed before initial failure. Failures began August of 2023.
Just took my 2018 JEEP Wrangler Unlimited JL in for the improved steering feel recall. The jeep was working just fine until after the software update just miles after update lost all power and shut off and wouldn't restart. I couldn't even get it to turn over enough to put it in neutral to put it on a tow truck. Finally got it restarted, back to the dealer and was told fuel pump was out. Service Bulletin #S1808000167, FCA discusses the reasons that the vehicle won't start or there is lost contact with the fuel pump control module.
My 2018 wrangler accelerates when not on the gas pedal, and both the engine light and electronic throttle light comes on. My Jeep has been to the dealer 4 times for this issue and it still goes unfixed. It has been to an independent service center once, and they diagnosed the PCM (powertrain control module) as failing. This issue is very dangerous for myself and anyone else on the road as my jeep will accelerate at random.
Fuel System complaints in other Wrangler years
Frequently asked questions
How common are fuel system problems on the 2018 Jeep Wrangler?
NHTSA has 21 complaints about the fuel & propulsion system of the 2018 Jeep Wrangler, 1% of the model year's 1,827 complaints.
Is there a recall for 2018 Jeep Wrangler fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2018 Jeep Wrangler, though it has 14 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 2018 Jeep Wrangler fuel system problems start?
Half of the complaints with a recorded mileage happened before about 8,000 miles, and 80% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 2 fires and 0 injuries to fuel & propulsion system 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.