2021 Jeep Gladiator Reliability Report

Owners report frequent issues with the suspension of the 2021 Jeep Gladiator, primarily involving a phenomenon known as "death wobble," where the front end and steering wheel shake violently, often occurring at speeds of 45-75 MPH after hitting bumps or road irregularities. This issue typically emerges around 23,000 to 36,000 miles, with some owners citing multiple repair attempts without resolution. Additionally, complaints mention the front suspension bottoming out over bumps, particularly in vehicles with diesel engines, due to insufficient suspension travel. One report includes a crash with an injury, attributed to the vehicle's rear wheels lifting during heavy braking. These issues suggest potential safety implications, including loss of control and driving hazards, which prospective buyers should consider.

Owners report frequent issues with the 2021 Jeep Gladiator's engine, notably involving overheating and power derating when towing or driving under heavy loads. Complaints often describe the engine's oil temperature reaching high levels, leading to reduced speed and limp mode activation, with some incidents occurring at highway speeds. These issues are noted even at relatively low mileages, such as 5,000 to 23,000 miles. Additionally, multiple owners describe engine misfires and camshaft failures, sometimes accompanied by warning lights and reduced engine performance. Safety concerns arise from one reported engine fire resulting in injuries and the potential for unexpected power loss in traffic, which could pose a risk to occupants and other road users.

Owners report several issues with the 2021 Jeep Gladiator, with the most frequent being windshield cracking. Multiple complaints describe windshields cracking spontaneously or from minimal impact, often obstructing visibility and requiring replacement. Additionally, some owners experience problems with the vehicle’s acceleration, including unintended acceleration that led to a crash in one instance. Another issue involves a faulty third brake light, which owners note as a recurring problem post-warranty. These issues typically arise within the first few years of ownership, with some safety implications such as impaired visibility and loss of vehicle control.

Owners report issues with the fuel system in the 2021 Jeep Gladiator, primarily related to delays in recall repairs due to unavailable parts. Complaints frequently mention problems with the fuel pump, such as vehicle stalling or hesitating to start, typically occurring around 14,000 to 50,000 miles. Some owners describe intermittent loss of power while driving, with no warning lights illuminated. Safety implications include potential loss of motive power and stalling, which could pose risks during driving. Buyers should be aware of ongoing recall part availability issues and the potential for unresolved fuel system failures.

Owners report issues with the 2021 Jeep Gladiator's vehicle speed control, primarily involving unexpected acceleration and throttle surges. Complaints frequently mention the vehicle accelerating suddenly without driver input, with brakes sometimes failing to respond immediately. Some owners describe throttle spikes when shifting gears, which distracts and delays driver reactions. These issues have been reported at various speeds and under different driving conditions, with some incidents occurring as early as 2021. The safety implications include potential loss of control and near-miss collisions, especially concerning for prospective buyers considering this model.

Owners of the 2021 Jeep Gladiator report issues related to the brake system, with symptoms including unintended acceleration and brake pedal shudder. One complaint involves a crash due to the brake pedal being positioned too close to the gas pedal, causing simultaneous engagement. Another owner describes a recurring electronic problem affecting ABS and traction control systems, leading to reduced braking effectiveness and power loss. Additionally, a failure in the Brake Throttle Override system is reported, where the throttle surges unexpectedly during braking, confirmed by dealership personnel but disputed by a technical advisor. These issues appear across varying mileages and have significant safety implications, including potential crashes and unintended vehicle acceleration.

Owners report issues with the air bag system in the 2021 Jeep Gladiator, including sensor malfunctions and deployment failures. Complaints frequently mention the air bag warning light illuminating, often linked to the occupant classification module failure, with fault codes like B2122-00 being identified. One incident involved a crash where the driver's side air bag did not fully deploy, resulting in an injury and a totaled vehicle at approximately 17,250 miles. Another owner describes the air bag sensor failing to detect a passenger, causing the warning light to cycle on and off, with the issue present from as low as 3,153 miles. These complaints indicate potential safety implications, particularly regarding air bag deployment reliability and sensor accuracy.