2021 Jeep Gladiator fuel/propulsion system problems
19 owner complaints filed with NHTSA name the fuel/propulsion system on the 2021 Jeep Gladiator — 7% of all complaints for this model year.
What owners report
“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 windshield, but the…”
filed Jul 11, 2026
“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 did register a fault…”
filed Jul 6, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Gladiator years
| Year | Reports | Share |
|---|---|---|
| 2023 Gladiator | 8 | 15% |
| 2022 Gladiator | 7 | 6% |
| 2020 Gladiator | 9 | 2% |
Other reported problem areas on the 2021 Jeep Gladiator
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.