2018 Jeep Wrangler: multiple warning lights

Filed Aug 27, 2026 · Electrical · MD

Suspected CAN bus failure causing multiple dash lights intermittently to include loss of power steering while driving causing an immediate safety concern.

Filed Aug 18, 2026 · Driver assistance, Electrical · IL

Change the ending so it is completely accurate: The electric power-steering assistance and electrical/instrument-panel systems have repeatedly malfunctioned. Power-steering assistance failed while I was driving on August 3, 2026, and again on August 8, 2026. Each time, the steering suddenly became extremely difficult. I struggled to maintain control and pull over safely without being struck or causing a collision. This placed me, my passengers, and other motorists at serious risk. The Jeep also displays numerous warning lamps and messages, the instrument cluster and odometer malfunction, the radio loses sound, and reverse sometimes will not engage. Multiple electrical systems can malfunction simultaneously. Five people have witnessed these problems. Electrical symptoms existed when I purchased the Jeep in May 2024. Federico Chrysler Dodge Jeep Ram inspected it in July 2024 at 44,780 miles. The dealer documented a disappearing odometer, multiple warning lights, failure to start, required jump-starts, and inability to turn the vehicle off. Federico diagnosed an internal instrument-cluster failure and replaced the cluster. Similar problems continued intermittently afterward and became substantially worse beginning July 11, 2026. Federico recently reviewed my video. A technician considered a possible wiring problem, but the dealership requires a paid diagnostic before confirming the cause. The current failure has not been physically diagnosed. Mopar received my report and video but has not inspected the Jeep or provided a technical determination. Police, insurance representatives, and independent shops have not inspected it. The Jeep has fewer than 65,000 miles and is available for inspection upon request. I limit driving as much as possible because I believe it is unsafe, but I have no other vehicle and must occasionally drive it for essential transportation.

Filed Jul 26, 2026 · Brakes · FL

The abs module has failed and i have no traction control or abs function all the lights are on the dash a common issue with the jk jeep wrangler platform

Filed Apr 7, 2026 · Electrical · CA

Numerous lights flash on dash-engine fan turns on high speed, coolant temp stops reading, check engine light comes on, unable to accelerate. Pull over but will not turn off. From what I’m reading it’s the CAN bus module and from what I’m finding on this site Jeep has many electrical failures but can’t fix it? Jeep should do what’s right and stand behind its product.

Filed Mar 6, 2026 · Electrical · PA

CAN Bus is failing and giving me issues! Power steering stops working, auto stop start fails, I was taking off at an intersection and my vehicle lite up like a Christmas tree and would not shift out of first gear causing me to pull off the road at a dangerous spot.

Filed Oct 29, 2025 · Electrical · MO

Faulty CANBUS connector/CANBUS failure. This issue tends to be a random and inconvenient occurrence which can be difficult to initially diagnose. Causes the jeep to stall, power steering to fail, causes all dash lights to light up and keeps the jeep from start up. Acts as if the part needs to cool down before the jeep will restart. The failure of this part has caused the jeep to stall on the highway at high speeds. Two manufacturer dealers inspected the battery, auxiliary battery, alternator and starter; found no issue with those parts. One dealer said our issue was due to the ABS module; replaced it and it did not fix the issue. Replaced the CANBUS connector and the issue has resolved. This is a known issue among jeeps both new and old and can pose a serious safety risk. To answer the question of how fast the vehicle was going when this issue occurred; the failure of this part happens at both highway speeds and residential speeds. There are currently 52,XXX miles on our jeep and the failure started, roughly, April of 2019. Jeep was purchased, brand new, April of 2018. It started with the jeep failing to start then grew to the jeep entirely stalling out while driving.

Filed Oct 26, 2025 · Electrical, Engine · ND

Continuous engine problems Says not in park/ is in park Clicking sounds when turned off Steering wheel won’t lock Will turn over but won’t start even tho all lights come on and air All lights will turn off when brake is pressed and when foot is off brake the lights will flash and the car will beep continuously All lights in gear will be lit up orange but can’t move it

Filed Jul 22, 2025 · Electrical, Engine · TN

Jeep randomly shuts off while actively driving. I have automatic JL. Screen shows to service clutch. All dash lights come on, no buss bar detected, ABS, No traction control, Airbags, park sense off, check engine, steering locks up. Engine shuts off while driving. MPH screen goes blank all electrical stops working. Connector behind stock bumper is expised to the elements causing shortage. Putting my life in danger everytime I drive

Filed May 6, 2025 · Brakes, Electrical · WV

ABS malfunction. Power steering and brakes go in and out of operation due to a communication error. All lights come on dash, engine light stays on. Occurs mainly when vehicle is hot during summer or above 65mph highway driving. Safety concern as vehicle power steering is unpredictable during this time. The Drive shaft locks in park and requires manual override when lights are on, but then without intervention, all the lights go away except the engine light and it runs fine. ABS modules are on back order with no ETA because this is a recurring problem for many. Once new abs module is put it, problem can be confirmed and more details can be given by auto repair services.

Filed Mar 11, 2025 · Brakes, Electrical · NC

While driving the transmission and clutch system blew up. And I mean that in the literale sense. Sparks and a big flash. Unfortunately, I was an hour away from where I live. This caused me to have to find a way home and find a tow company that would be able to pick up my jeep on the side of the highway, tow it an hour to me. I couldn't afford that, so it was taken to the Chrysler dealership there and it was there for a month before they could work on it due to the parts having to be ordered and shipped in. Once the entire clutch system and transmission fully replaced I have to find a way to go back and pick it up. It was after hours when I finally got to it. That's when the mechanic that worked on it researched and found the recall for the transmission and clutch system because they would blow up. Just as mine did. But the next set of problems started as soon as I picked my jeep up. Pulls to the right when braking, push start won't start saying the fobs are not detected while I'm holding them in my hands. All lights on cluster go off randomly, the steering wheel locks up while I'm driving causing more danger. The traction control, sway bar will go off and on as well as the push start will not turn off. I did manage to take a short clip of this happening while I'm driving.

Filed Jan 2, 2025 · Steering · PA

After I completed the recall on the clutch, I've noticed an alarming issue: occasionally, multiple warning lights appear on the dashboard, such as the check engine, service transmission, and brake lights. The most pressing safety concern is the complete loss of power steering. Although the car remains drivable, operating it without power steering is exceptionally hazardous. Additionally, since the car features a push-to-start system, when this issue arises, I can’t turn it off in the usual manner; I have to stall the engine to stop it. This situation has occurred multiple times, but fortunately, I’ve been either at a stop or driving at a low speed. After leaving the car off for a while, when I start it again later, the fault disappears and I can't replicate the issue.

Filed Oct 4, 2024 · Electrical, Steering · AZ

Incident date: [XXX], electrical problems causing loss of steering, 65 miles per hour, EXTREME action required to keep on road. 2018 Jeep Wrangler Unlimited Sport (4 door), 3.6L engine, bought new July 2018, Everett Washington. RPM and speedometer gauges went to zero, loss of power steering, all dashboard warning lights blinking on/off, digital speedometer only showed dashes (- - -) windshield wipers came on scraping bare hot window (outside air temperature 104 degree F), radiator fan went full on, engine kept running but miss-firing/rough, managed to get off freeway and stopped, turned off ignition for 5 minutes. On restart, all errors (except Check Engine Light) disappeared and car appeared normal, no stored warning messages. This is second occurrence. Picture is similar to my errors (it is from Jeep Forum,[XXX] Location: [XXX]. What is going to happen if I am off road and it dies? Or on a Los Angeles Freeway? I might be dead. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)