2020 Jeep Gladiator Brakes Problems

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.

NHTSA ID

11696879

Incident

Oct 29, 2025

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?

NHTSA ID

11694493

Incident

Oct 5, 2025

The contact owns a 2020 Jeep Gladiator. The contact stated that while driving at approximately 40 MPH, the vehicle had suddenly started to vibrate and shake. The contact stated that the vehicle was maintaining its lane but was lurching from left to right. No warnings illuminated. The contact stated that she pulled off to the side of the road; however, when she turned the vehicle on, it would start shaking again. The contact stated that she would keep driving while the vehicle was shaking, and the shaking would eventually stop. The contact stated that the shaking was occurring at any speed and was also triggered when she would drive over any small bumps or dips in the road. The contact stated recently, while she was driving in traffic at approximately 10 MPH, the vehicle started to shake again, however, this time violently. The contact stated that at the time, it was raining. The contact stated that it felt like the vehicle had lifted up, and then she crashed into the guard rail on the driver's side front bumper. The contact stated that the bumper and an LED light bar attached to the front grill had made contact and were slightly damaged, and the driver's side headlight stopped functioning. The police were not called, and the contact was not injured. The contact reported that the driver's side front air bag had deployed but had not inflated and was draped on her lap. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed and was not repaired. The contact reported that after the crash, she observed the check oil and check brake warnings illuminated. The contact stated that she needed to depress the brake pedal with more force in order to stop. The manufacturer was not informed of the failure. The failure mileage was approximately 109,000.

NHTSA ID

11693667

Incident

Aug 18, 2025

Mileage

109,000 mi

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.

NHTSA ID

11677657

Incident

Jun 11, 2025

Loss speedometer and all dash gauges. Known problem on Forums; however NO TSB or Recall to fix issue. Plethora of CEL codes to include causing speed to not display on digital or analog indicators.

NHTSA ID

11649131

Incident

May 7, 2024

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.

NHTSA ID

11541006

Incident

Jun 5, 2023

I was driving at about 5 MPH and about to go onto the Freeway on ramp in Riverside, California, when the sensor in my car went off and locked the brakes, causing the person behind me to rear-end me. This is not the first time this has happened with this vehicle. Luckily, I was not injured, however, this could have been a serious injury if I was traveling at a higher speed or under many other circumstances.

NHTSA ID

11518921

Incident

Apr 20, 2023

The contact owns a 2020 Jeep Gladiator. The contact stated while driving 30 MPH, he heard a scraping sound inside the vehicle. The contact then stated that while he pulled into a service station, the brake pad and caliper bracket assembly detached and got caught in the rear passenger’s side wheel, causing the tire to be punctured. There was no warning light illuminated. The vehicle was towed to the dealer but was not diagnosed or repaired. The manufacturer was notified of the failure and the contact was provided a case number, but no further assistance was provided. The failure mileage was approximately 33,000.

NHTSA ID

11494574

Incident

Nov 11, 2022

Mileage

33,000 mi

Center rear brake light failed. Detected 18 months after purchase.

NHTSA ID

11486573

Incident

Jan 3, 2022

My truck malfunctioned at an automatic car wash. It has approximately 54k miles. I had no warning lights or system alerts on vehicle or Uconnect app. I stopped in the parking lot & put the Gladiator in Park, I left the ignition on. I got off truck & got a towel to clean interior.There are several spaces to vacuum. I put the vehicle in DRIVE to move forward & out of the way of a patron that was going to reverse out. In DRIVE, I pushed the gas pedal in a slight & normal way. The truck REVERSED in DRIVE position. It accelerated to an unknown speed, it felt constant. I pushed break with foot I pushed D with. Right foot. The breaks didn’t work. I tried breaking several times during incident, it was approximately 10 seconds. I didn’t have time to use e- break. I don’t believe back up camera was displayed. I concentrated on physically looking at surroundings & steering. I avoided hitting 1 car, a SUV & a brick wall. The truck made contact with around 4 trees & a sign. The damage was mainly to L side. There’s damage to R side & R back tire had a bulge on it. I went over a concrete, grassy area & felt the impacts of front & back ends going over it & landing. I went over another concrete curve & hit a tree at an angle around the middle of front L cab. The impact caused the car to bounce forward. It didn’t move. I put the truck in Park from D position. I pushed off button. I couldn’t get out of truck of driver side door it’s damaged. 1 witness & lady from suv stopped to check on me. I called police to crash site. He noted witness & lack of break marks. Roadside service wait was long, officer called one. I made a report to Uconnect that evening. They gave me a case # told me they’d move vehicle to a dealer, inspect, analyze & call me. I’ve called, recorded calls & told case was elevated to higher level & no info can be given to me. They refused to tell me where car was, if inspected, warranty info, or what malfunctioned. My ribs, clavicles, r shoulder hurt for a month.

NHTSA ID

11477897

Incident

Jun 12, 2022

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.

NHTSA ID

11467417

Incident

Feb 29, 2020

Two missing Bolts on Rear Drivers side break caliber.

NHTSA ID

11444243

Incident

Dec 17, 2021

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.

NHTSA ID

11414785

Incident

Apr 8, 2021

VERY SPONGINESS, BRAKE PEDAL GOES TO THE FLOOR. BOTH WHEN TRYING TO START THE VEHICLE AND WHEN IN MOTION ON CITY STREET OR HIGHWAY. THIS VEHICLE HAS BEEN IN TO A JEEP GLADIATOR DEALER, THEY ACKNOWLEDGED THE PROBLEM BUT NOT FIX THE BRAKE PROBLEMS.

NHTSA ID

11406388

Incident

Sep 19, 2020

Mileage

1,800 mi

FIRST INCIDENT WAS APPROACHING A TURN OFF INTO A SHOPPING AREA, A CAR WAS STOPPED THERE WAITING FOR TRAFFIC AS I APPROACHED I APPLIED THE BRAKES AND THE BRAKE PEDAL WENT TO WAY DOWN, I DIDN'T HAVE TIME TO RECYCLE BRAKE PEDAL AS IT WENT SO FAR DOWN I WAS HITTING GAS PEDAL, THUS CAUSING ME TO COLLIDE. SECOND INCIDENT OCCURRED WHILE DRIVING TO TOWN AND A STRONG BRAKE BURNT SMELL WAS OCCURRING, WHEN I ATTEMPTED TO STOP AGAIN BRAKE PEDAL WENT WAY DOWN AGAIN WHICH THIS TIME I HAD TIME TO REGAIN CONTROL FROM HITTING GAS PEDAL AND FORCE STOP, INSPECTED BRAKES AND FRONT BRAKES WERE EXTREMELY HOT AND SMOKING AS IF BRAKES WERE BEING CONSTANTLY APPLIED, I DID NOT FEEL BRAKES BEING APPLIED GOING DOWN THE HIGHWAY JUST SMELL AND INSPECTION OF FRONT BRAKES HEATING UP. I CALLED ROADSIDE ASSISTANCE AND VEHICLE WAS TOWED TO REPAIR STATION WAITING ON RESULTS. I FEEL THAT IF NOT TAKEN CARE OF TOTAL BRAKE FAILURE WOULD OCCUR AND MAJOR ACCIDENT.

NHTSA ID

11366936

Incident

Oct 28, 2020

Mileage

4,000 mi

THE VEHICLE IS EQUIPPED WITH A FORWARD COLLISION WARNING SYSTEM THAT IS DESIGNED TO BOTH ALERT OF AN IMPENDING COLLISION AND APPLY BRAKES, IF NECESSARY. THE SYSTEM CAN BE SET TO: OFF, ALERT ONLY OR ALERT W/ EMERGENCY BRAKING. THE SYSTEM DOES NOT WORK PROPERLY. IN FACT, IT WORKS SO IN FREQUENTLY THAT I TOOK IT BACK TO THE DEALER. THEY EVALUATED IT FOR 3 DAYS AND FOUND NOTHING DIAGNOSTICALLY WRONG. THE FACTS THAT I CAN CONFIRM ARE AS FOLLOWS: OCCASIONALLY THE ALERT WARNING SOUND WILL CHIME BUT THE BRAKES DO NOT ACTIVATE. I HAVE BEEN UNABLE TO ASCERTAIN WHAT CONDITIONS ALLOW THE SYSTEM TO ACTUALLY ACTIVATE AND WORK PROPERLY. FOR EXAMPLE, I HAVE HAD THE ALERT CHIME WHEN ANOTHER VEHICLE WAS MAKING A RIGHT TURN IN FRONT OF ME BUT DURING THAT SAME DRIVE, WHEN A SECOND VEHICLE MAKES A SIMILAR RIGHT TURN, THE SYSTEM DOES NOT ALERT ME.

NHTSA ID

11318769

Incident

Feb 22, 2020

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).')*JB

NHTSA ID

11316012

Incident

Feb 29, 2020

Mileage

1,200 mi