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2021 Jeep Gladiator problems: engine and transmission complaints and recalls

HIGH COMPLAINT SIGNAL
47%
128 of 273 relevant owner complaints are about the engine, transmission or fuel system

47% of relevant owner complaints filed with NHTSA on the 2021 Jeep Gladiator are about the engine, transmission or fuel system. That is a model-level pattern, not bad luck.

Worse than 59% of the 1,789 model years we track (2010–2023).

Excludes 19 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 44%).

NHTSA data checked October 3, 2026
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Does the 2021 Jeep Gladiator have transmission problems?

Owner complaints say yes, as a model-year pattern. 128 of 273 relevant complaints filed with NHTSA about the 2021 Jeep Gladiator concern the engine, transmission or fuel system (47%), and the largest group is filed under power train (71). For comparison, the 2020 scores 21% and the 2022 scores 39%. On a test drive, check for shuddering, slipping, delayed or harsh shifts, or a whine at speed. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
128
engine, transmission, fuel
Total complaints
292
this model year
Fires reported
3
owner-reported
Recall campaigns
8
7 crashes · 7 injuries

Complaints by component

STEERING94 · 32%
POWER TRAIN71 · 24%
ENGINE53 · 18%
ELECTRICAL SYSTEM46 · 16%
SUSPENSION41 · 14%
UNKNOWN OR OTHER28 · 10%

The years either side

2010
no data
2011
no data
2012
no data
2013
no data
2014
no data
2015
no data
2016
no data
2017
no data
2018
no data
2019
no data
2020
21%
100 of 483
2021
47%
128 of 292
2022
39%
43 of 120
2023
42%
22 of 56

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Same car, a better year

Other midsize pickups with no elevated signal

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

ENGINE07/31/2025FIRE1 INJURED
The contact owns a 2021 Jeep Gladiator. The contact stated that while driving at 60 MPH, there was an alarming amount of white smoke emanating from the engine compartment and permeating the interior of the vehicle, prompting the contact to pull over to the shoulder of the roadway and evacuate the vehicle. Moments later…
SUSPENSION,ENGINE10/26/2022CRASH1 INJURED
Under heavy breaking the rear wheels of my vehicle lifted off of the pavement. This loss of traction and shift in weight resulted in a head on collision with a vehicle in the opposite lane of traffic. After the accident I discover that the suspension for my vehicle was incorrect to the level that FCA released a TSB reg…
POWER TRAIN09/28/2026
The contact owns a 2021 Jeep Gladiator. The contact stated that two years ago the vehicle was taken to a dealer to be repaired under NHTSA Campaign Number: 23V116000 (Power Train); to prevent the clutch from overheating. However, the failure started after the vehicle was repaired under the recall repair. The contact st…

Three of 128 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on the 2021 Jeep Gladiator (8)

POWER TRAIN:CLUTCH ASSEMBLY
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 m…
BACK OVER PREVENTION:DISPLAY FUNCTION
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 fro…
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
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…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2021 Jeep Gladiator

Questions people ask about the 2021 Jeep Gladiator

Does the 2021 Jeep Gladiator have transmission problems?

Owner complaints say yes, as a model-year pattern. 128 of 273 relevant complaints filed with NHTSA about the 2021 Jeep Gladiator concern the engine, transmission or fuel system (47%). Before buying one, have an independent mechanic check the transmission and ask the seller whether it has been repaired or replaced.

Are there engine or transmission recalls on the 2021 Jeep Gladiator?

NHTSA lists 8 recall campaigns on the 2021 Jeep Gladiator. Whether a specific car still has one open depends on its VIN.

Which Jeep Gladiator years are better?

Among the Jeep Gladiator years we track, the 2020 (21%), the 2022 (39%) and the 2023 (42%) have a lower engine and transmission complaint share than the 2021 (47%). Manufacturers fix things mid-generation, so the year before or after can be a different car.

Should I buy a 2021 Jeep Gladiator?

That depends on the car in front of you, not just the model year. The 2021 Jeep Gladiator has an elevated transmission complaint pattern, so treat it as a car that needs proof: service records showing transmission work, a cold-start test drive, and an independent pre-purchase inspection focused on the transmission. A well-kept or already-repaired example can be a fine car; an unknown one is a gamble.

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle. Combined across 2 body styles NHTSA files separately.