2020 Jeep Gladiator: ABS light or ABS activating

Filed Oct 31, 2025 · Acceleration, Brakes · AR

My Jeep Gladiator has recently been having multiple random error messages popping up. ABS warning, service 4WD, service shifter, traction control and others. Dealership charged $200 to diag a bad ABS module and charged $1400 to replace the module and controller. Less than 24 hrs later same issue occurred . Doing my own research this seems to be a common issue not just with Gladiators but other Jeeps as well. Many forums are saying it’s bad wire connectors or broken wires from improper initial installation. Causes issues with speed control, braking, and power steering.

Filed Oct 20, 2025 · Brakes, Electrical · NJ

Driver side rear wheel speed sensor. This is a known issue national back order on the part, mechanic installed new part system does not reset and clear. In the current state, abs offline four-wheel drive system service required traction control service required. What is the true fix for this?

Filed Jul 31, 2025 · Brakes, Electrical · OR

During normal driving, dash would display multiple warning lights. There would be traction control, ABS inactive, and transmission errors displayed on the screen. Twice, there was a loss of power steering while driving. All signs pointed to a CAN buss issue, but dealer could not/ would not find it. Doing research, I found that the CAN buss connector located behind the glove compartment was known in the Jeep community to fail and cause these symptoms. The only replacement is offered by Mopar/Stellantis. Multiple models and makes under Stellantis company use this same connector that has bad solder connections inside. It causes increased resistance inside the connector, and causes CAN buss communication errors, and setting any one of hundreds of possible DTC. In every occasion, there was a loss of stability control, ABS, and multiple occasions of vehicle being locked in Park. In two occasions, the electric assist power steering was disabled.

Filed Aug 27, 2023 · Brakes, Steering · MA

While driving several warnings lights illuminate: traction control, ABS, air bad, service 4 wd, and brake. When this happens power steering is lost making it extremely hard to steer the car. The brakes are automatically engaged and occasionally the windshield wiper turns on. This causes a risk not only to myself and passengers but anyone driving near me as I can no longer steer with ease and the brakes lock up. My Gladiator has been at the Jeep dealer for 10 weeks while they try to solve the problem. They replaced the ABS module but that didn't solve the issue. I'm told that its electrical and whatever it is will harm several systems. My wife's 2018 Jeep Wrangler JL has the exact same issues. She has a very hard time controlling it due to no power steering.

Filed May 23, 2023 · Electrical, Steering · DE

Lost Power Steering, 5/22/2023. 4 Orange Check lights came on. 1)Tried to start the car remotely, with secondary key. No start. 2)Tried again standing next to it. No start. 3)Got in and pushed brake and started car. All the same check lights came on that did 4/19. Engine, ABS and 4WD. Maybe another Shifter warning. 4)Pulled out of driveway with ½ the error lights on. Lost power steering 100 yards in the neighborhood. 5)U Turn with no PS, back to house, let it sit all day till 3PM while waiting for towing. Did not scan, Did not disconnect battery. 3PM, Came home from work, started the car with remote. Only 1 check engine light and now power steering is back. Delivered to Jeep Dealer, Hetrick Jeep Dodge, Elton, MD. by tow truck.

Filed May 23, 2023 · Electrical, Steering · DE

4/21. Check Engine Light Shifter locked in place. Lost Power Steering. Started out as CHECK ENGINE Light then added ABS light. I Cleared it. Week later, Friday, 4/21. Check Engine Light 4/22 - Saturday AM, Drive to Goodwill and landfill While in 18 truck line at landfill, I put in PARK, Trans locked itself in PARK. Radio and Speedo Blipped. Then Orange Check Engine light, Orange ABS light, two Orange Traction Control lights. Orange Service 4WD light. Service Shifter Message, RED Brake light n dash. There was another ABS Message, but I failed to get it. Turned off engine, I restarted and was able to get in gear, NO POWEER STEERING. Got through line. Drove home with all check lights and no power steering. Engine and Trans Temps were good, oil pressure was good, Battery showing 14.1 while driving. At home, scanned for codes. In this order U0121 U1110 U1120 U11BC U12AB P057C (Brake Pedal Sensor Circuit Low) U11BF U0001 High Speed Can Communication Bus P0000

Filed Jun 3, 2022 · Brakes · WA · crash

A braking sensor failed on the Gladiator causing the ABS, 4WD, and cruise warning lights to become illuminated. The brakes then did not work properly causing an accident. The EDR report shows the ABS system was turned off as a result of the sensor. The attached documentation shows an expert reviewed the information and came to the conclusion the failed sensor caused the ABS to be off which in turn caused the brakes to lock. The brakes locking caused a skid which caused the accident. Also to note the general manager of Bellevue AutoNation let me know the sensor has since been changed out along with the brake cables on 06/05/2021 for all Jeep Gladiators. Jeep has known this is a problem and has not done a recall.

Filed May 2, 2021 · Brakes, Electrical · MA

In motion; check engine light, sway at disconnect, shifter, speed control, no bus, service airbag, cooling fan began racing, shifted out of drive to neutral , fuel gauge malfunction reading empty, red light over temp gauge went on , erratic steering and braking ; very unnerving, went in to be fixed and after 2 1/2 weeks I received it back last tuesday april 27th, and yesterday may 1st check engine light came back on , this time windshield wipers turned on and can't turn off , ABS light on again.

Filed Mar 4, 2020 · Brakes, Lights · 1,200 miles · WA · crash · 2 injuries

I purchased the jeep on 12/30/2019. It had 1,200 miles when the incident occurred. The vehicle was in motion when 4wd and ABS warning light came on to indicate failure. I hit the brakes and nothing happened. The vehicle did not stop and caused an accident when I could not stop at a red light.*dt consumer is currently waiting on diagnosis and no repairs have been made. During the accident consumer had neck, back, and shoulder injuries. Police report has been filed case [xxx]. ('parts of this document have been redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).')