2021 Jeep Gladiator: shudder or vibration when accelerating

Filed Aug 11, 2026 · Acceleration, Fuel system · GA

Truck failed to find gear shuddered lost speed in traffic while going up a hill. Limp mode was initiated. This is a known manufacturers defect with a tsb applied against the known issue. Issue is widespread when researched but not made known by the manufacturer of the truck. Dealership refusing repair under goodwill due to truck being out of mileage by 5000miles. Symptoms started prior to exiting warranty but due to no communication by dealership or manufacturer unit was not brought in for repair prior. Repeat this is a known defect that is being ignored by manufacturer.

Filed Jun 13, 2024 · Steering · 25,000 miles · MI

The contact owns a 2021 Jeep Gladiator. The contact stated while driving 35-65 MPH and driving over minor bumps on the roadway, the vehicle experienced a death wobble. The contact stated that the steering wheel and the front end of the vehicle were shuddering violently, causing the contact to lose control of the vehicle. The contact depressed the brake pedal to slow down and allowed the vehicle to stop shuddering. The contact stated that the failure recurred several times while driving. The vehicle was taken to the dealer several times, where it was test-driven, but the failure could not be replicated. The vehicle was not repaired. The vehicle was then taken to an independent mechanic, where the drag link assembly and other unknown parts were replaced. The vehicle was repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 25,000.

Filed Jan 25, 2022 · Steering, Suspension · TX

In January 2021, my 2021 Jeep Gladiator Overland became unstable at normal freeway speeds (60-75 mph) on many occasions. The slightest bump or surface irregularity stimulates a violent and sustaining side-to-side vehicle shudder/vibration from the front suspension that was very extreme that lasted for over 2 minutes or until the vehicle slowed to around 60 mph; where stable vehicle behavior restored. This extreme instability and needed hard braking creates a serious driving hazard. I have taken it to 2 separate dealers who cannot find any issue and are unwilling to investigate unless it happens in their presence even with video proof. I have also taken to a tire shop and had the tires re-balanced and put on a road force machine. The tire shop found no issues with the tires or balancing. This started at about 23,000 miles and occurs more as the temperatures drop. This failure mode is severe, occurs without warning, is not detectable until it occurs and is very frightening. My Jeep has stock, factory wheels and factory tires in good balance with no visible or abnormal tread wear. This is a dangerous condition that needs immediate correction. A 1 year old vehicle with 23,000 miles in excellent condition, no accident history and no modifications should not be doing this. Side note; I did have to have the engine replaced after 11 months of ownership and the Jeep came from the factory with cracked spark plugs and had the spark plugs replaced after 1 week of ownership. This is an ongoing issue with no resolution.

Filed Jan 23, 2022 · Suspension · MI

In December, 2021, my 2021 Jeep Willys Gladiator became unstable at normal freeway speeds (70-75 mph) on ~8 occasions. At these speeds, the slightest bump or surface irregularity stimulates a violent and sustaining side-to-side vehicle shudder from the front suspension that was so extreme that it splashed my cola and ice from the center cup holder to the dashboard and doors. R-L-R Steering inputs had no effect and hard braking had no effect until the vehicle slowed to around 60 mph; where stable vehicle behavior restored. This extreme instability and needed hard braking creates a serious driving hazard. The dealer is installing a new steering damper. The engineer in me says there is a bearing, bushing or ball joint as root cause. This defect manifested at ~23,000 miles and occurs more readily as the temperatures drop below 20 deg F. This failure mode is severe, occurs without warning, is not detectable until it occurs and its effect is panic-inducing. My Jeep has stock, factory aluminum wheels and normal sized Michelin All-Season radial tires in good balance with no visible or abnormal tread wear. I ordered this vehicle new on 3/1/2021. The 'Gladiator forum' calls this condition "death wobble". Anecdotally, the condition appears to be associated with vehicles having "lift kits" as well as stock vehicles. My 'Willys Jeep is built by FCA with a modest suspension lift relative to the base Gladiator models. Other (anecdotal) owner information has identified loose ball joints, defective drag link bushings and steering free play as root causes in other new, low mileage vehicles. I am a retired engineer with vehicle development, professional driving and prototype vehicle experience. This is a dangerous condition that needs immediate correction. A 7-month old vehicle with 25,000 miles in excellent condition, no accident history and no modifications SHOULD NEVER DO THIS. A steering damper may reduce this death wobble but there is a more likely root cause.

Filed Nov 16, 2021 · Steering, Suspension · AL

Rear Axle Assembly leaking fluid onto rear brake drum and wheel hub assembly, potentially rendering brakes non-functional in rear of vehicle. Excessive drift/play in steering at moderate speeds (40mph+) "Death Wobble" experienced at speeds ~70mph. Front wheels/suspension near total loss of control. Steering column violently shuddering, and required excessive force to control. Vehicle is dealer stock, completely unmodified, with only 9500 miles on it. Dealer currently has vehicle. Replaced rear axle assembly. Currently test driving to try and reproduce shaking in steering and front drivetrain.