2021 Jeep Gladiator Common Problems & Defect Telemetry
Authoritative defect intelligence synthesized from 288 verified NHTSA owner complaints, 8 federal safety recalls, and interquartile failure mileage telemetry.
The 2021 Jeep Gladiator receives a 3.3/10 MazicBay Reliability Index based on 288 verified NHTSA federal complaints and 8 safety recalls. The primary reported failure mode is Electric Power Steering Assist & Suspension Noise Reports with a median failure point at 15,900 miles (IQR: 9,375 – 23,917 mi). Out-of-warranty repairs benchmark at $450 – $1,400 .
41.1 complaints / 10k sold
Verified US federal records
Crash, fire & stall audit
8 Active / Free Remedies
Top Reported Problem Clusters (7)
Electric Power Steering Assist & Suspension Noise Reports
- Sudden loss of electric power steering assist
- Steering wheel pull or highway wander
- Clunking / knocking noise over bumps
“The contact owns a 2021 Jeep Gladiator. The contact stated that while driving approximately 55 MPH on uneven road surfaces, the vehicle experienced violent shaking in the front end and the steering wheel. The contact stated that the vibration reoccurred while depressing the br...”
“I am experiencing the "Jeep Death Wobble" which occurs intermittently after hitting any road imperfections i.e. uneven road surface connections, potholes, or rumble strips, causing a violent and sudden shaking of the steering wheel at highway speeds. I feel like the wheels are...”
“The contact owns a 2021 Jeep Gladiator. The contact received notification of NHTSA Campaign Number: 26V363000 (Steering). The vehicle was taken to the dealer and the vehicle was inspected, and the contact was informed that the vehicle had passed the inspection. The contact was...”
Transmission Hesitation, Hard Shifting & Slipping Reports
- Hard gear shifts / delayed engagement into Drive/Reverse
- Transmission shudder / jerking under acceleration
- Transmission slipping between gears
“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. D...”
“2021 Jeep Gladiator Sport S equipped with 6 speed manual transmission purchased from Landers Jeep in Little Rock Ar. Vehicle required the A-19 clutch recall. Recall was completed and I took ownership 6/17/2025. I returned the vehicle within the first week of ownership due to t...”
“Engine oil light came on. Inspected at Tom Obrien Jeep for low oil pressure. Technician found that one of the oil sprayers was not bolted onto block, screw was there and tight, sprayer was in oil pan. It was incorrectly assembled. Jeep would not warranty due to lack of oil cha...”
Engine Stalling, Oil Consumption & Cooling Defect Reports
- Engine sudden stall / hesitation while driving
- Abnormal oil burning / consumption
- Check Engine Light (MIL) flashing
- Engine overheating / coolant loss
“The vehicle was bought in CA and hasn't had any issues till about after 3-4 yrs later. 1) Adaptive cruise control / emergency braking system / forward collision notification will occassionally state "not availble/unavailable" or "visibility" is not available and to clean winds...”
“Engine oil light came on. Inspected at Tom Obrien Jeep for low oil pressure. Technician found that one of the oil sprayers was not bolted onto block, screw was there and tight, sprayer was in oil pan. It was incorrectly assembled. Jeep would not warranty due to lack of oil cha...”
“Engine light came on, vehicle went into limp mode. Transmission would not shift any higher than 3rd gear and kept slipping while on interstate! Was almost hit by several 18 wheelers! Jeep dealership said our vin is not part of the service bulletin but they did get the P0733 co...”
Service Brakes, ABS Actuator & Master Cylinder Reports
- Spongy or hard brake pedal travel
- ABS / Brake warning light illuminated
- Extended stopping distance / pedal vibration
“The contact owns a 2021 Jeep Gladiator. The contact stated that while driving approximately 55 MPH on uneven road surfaces, the vehicle experienced violent shaking in the front end and the steering wheel. The contact stated that the vibration reoccurred while depressing the br...”
“Front brake caliper(s) was seizing up causing smoking and a burning smell. Vehicle was also pulling to the right when braking. Brake fluid or something like it coated the front drivers side wheel. Took vehicle back to dealership where vehicle was purchased new. Vehicle is stil...”
“I am experiencing the "Jeep Death Wobble" which occurs intermittently after hitting any road imperfections i.e. uneven road surface connections, potholes, or rumble strips, causing a violent and sudden shaking of the steering wheel at highway speeds. I feel like the wheels are...”
Electrical Parasitic Drain, Infotainment & Harness Reports
- Unexplained battery drain after sitting overnight
- Infotainment display / instrument cluster blackouts
- Accessory malfunction / alternator fault warnings
“7/5/2026. Driving home on the highway the Jeep went into limp mode and shut down. The Fault flashed on the screen for about 15 seconds (Throttle Body Falut) Problem is there is no warning when it happens. It just shuts down. This creates a "REALLY SERIOUS HAZZARD" This time it...”
“The dealership says it cannot be repaired until 2027 due to parts not being available for the fire recall on this jeep. I cannot ensure my safety or others with this issue.”
“own a 2021 Jeep Gladiator Overland, VIN .... My vehicle is affected by a safety recall involving the power steering wiring and potential fire risk. I have been advised that parts may not be available until September. I am concerned about the safety of my vehicle and would like...”
Fuel Pump Pressure Loss & Fuel Delivery Defect Reports
- Sudden loss of propulsion power at highway speeds
- Extended engine cranking / failure to restart
- Fuel odor near fuel tank / engine bay
“The vehicle was bought in CA and hasn't had any issues till about after 3-4 yrs later. 1) Adaptive cruise control / emergency braking system / forward collision notification will occassionally state "not availble/unavailable" or "visibility" is not available and to clean winds...”
“The contact owns a 2021 Jeep Gladiator. The contact stated that while attempting to start the vehicle, the vehicle would hesitate to start. There were no warning lights illuminated. The vehicle was taken to a local dealer, where it was diagnosed that the fuel pump, the fuel in...”
“The contact owns a 2021 Jeep Gladiator. The contact stated while driving 65 MPH, the DEF tank message was displayed, notifying the contact to “See the Dealer”. Additionally, there was a message indicating 200 miles were remaining before the vehicle would fail to start. The veh...”
Airbag Occupant Detection & Inflator Defect Reports
- SRS Airbag warning lamp illuminated
- Passenger occupant classification sensor failure
- Seat belt retractor lockup
“On 12-13-23 I hit an 8 point buck going 55mph head on between the 2 headlights doing 15k in damage.. airbags did not deploy. On 4-11-26 I was hit by a drunk driver head on. I was going 33mph, he was going much faster in a Polaris rzr hit me on the driver side tearing off my ti...”
“Description of the Safety Issue I am submitting this complaint to report a serious seat belt safety incident involving entrapment and inability to self‑release, which required emergency intervention. While parked, my daughter as a passenger in my Jeep Gladiator, became tangled...”
“The contact owned a 2021 Jeep Gladiator. The contact stated that while the vehicle was stopped at a corner, another vehicle was speeding and crashed into the front driver's side quarter panel. The impact pushed the vehicle forward, causing the front driver's wheel to swipe a t...”
Official NHTSA Safety Recalls (8)
POWER TRAIN:CLUTCH ASSEMBLY
Summary: Chrysler (FCA US, LLC) is recalling certain 2018-2021 Jeep Wrangler and 2020-2021 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.
BACK OVER PREVENTION:DISPLAY FUNCTION
Summary: Chrysler (FCA US, LLC) is recalling certain 2020-2021 Jeep Wrangler, RAM 1500 and 2021 Jeep Gladiator vehicles. A radio software error may prevent the rearview image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Summary: Chrysler (FCA US, LLC) is recalling certain 2020-2022 Jeep Wrangler, Ram 1500, and 2021-2022 Jeep Gladiator vehicles equipped with 3.0L diesel engines. The high pressure fuel pump (HPFP) may fail, causing an engine stall.
POWER TRAIN:CLUTCH ASSEMBLY
Summary: Chrysler (FCA US, LLC) is recalling certain 2018-2023 Jeep Wrangler, and 2020-2023 Jeep Gladiator vehicles equipped with manual transmissions. The clutch pressure plate may overheat and fracture.
FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP
Summary: Chrysler (FCA US, LLC) is recalling certain 2021-2023 Jeep Wrangler, Gladiator, and 2022-2023 Ram 1500 vehicles equipped with a 3.0L diesel engine. The high pressure fuel pump (HPFP) may fail.
POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE:SOFTWARE
Summary: Chrysler (FCA US, LLC) is recalling certain 2021 Jeep Wrangler and Jeep Gladiator vehicles that were previously remedied under NHTSA recall number 23V-116. The software for the powertrain control module may cause an engine stall, which can result in a loss of drive power.
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Summary: Chrysler (FCA US, LLC) is recalling certain 2020-2024 Jeep Gladiator and 2018-2024 Jeep Wrangler vehicles. The instrument panel cluster may experience an internal short circuit and fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Controls and Displays."
STEERING:HYDRAULIC POWER ASSIST:PUMP
Summary: Chrysler (FCA US, LLC) is recalling certain 2021-2025 Jeep Wrangler, Wrangler 4XE, and Jeep Gladiator vehicles. The electric hydraulic power steering pump wiring may overheat and cause a vehicle fire, even when the vehicle is parked with the ignition in the "Off" position.
Pre-Purchase Inspection Checklist for 2021 Jeep Gladiator
Before purchasing a used 2021 Jeep Gladiator, perform the following targeted inspections based on reported federal defect patterns:
Scan the OBD-II port under the dash for pending freeze-frame codes (e.g. P0300 misfires, P0087 fuel rail pressure, P0420 catalytic efficiency).
Test vehicle at low-speed stop-and-go and highway merges. Check for delayed reverse engagement or gear shift shudder between 2nd and 3rd gears.
Verify that all 8 NHTSA safety recall campaigns have been performed by an authorized dealership using the VIN.
Ensure the instrument cluster, center screen, and auxiliary charging ports operate with stable 12.0V–14.4V alternator voltage.
Defect & Reliability Q&A: 2021 Jeep Gladiator
Is the 2021 Jeep Gladiator a reliable used car?
The 2021 Jeep Gladiator earns a 3.3/10 MazicBay Reliability Index based on 288 federal owner reports. Vehicles maintained under factory service schedules exhibit strong longevity past 150,000 miles.
What is the most frequent defect reported on the 2021 Jeep Gladiator?
The leading complaint category is Electric Power Steering Assist & Suspension Noise Reports, with a median failure point around 15,900 miles (IQR: 9,375 – 23,917 mi).
Are there free recall repairs available for the 2021 Jeep Gladiator?
Yes, the NHTSA records 8 safety recall campaign(s) for this model year. All safety recalls are performed 100% free of charge by authorized franchise dealerships regardless of vehicle warranty status.

