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2012 Jeep Wrangler: engine and transmission complaints

VERY HIGH COMPLAINT SIGNAL
67%
458 of 686 relevant owner complaints are about the engine, transmission or fuel system

67% of relevant owner complaints filed with NHTSA on the 2012 Jeep Wrangler are about the engine, transmission or fuel system. Well over half of everything owners reported is the drivetrain. That is a severe model-level pattern; every model year we track at this level has a documented failure behind it.

Worse than 88% of the 1,230 model years we track (2010–2023).

Excludes 147 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 55%).

NHTSA data checked September 13, 2026
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Drivetrain complaints
458
engine, transmission, fuel
Total complaints
833
this model year
Fires reported
19
owner-reported
Recall campaigns
10
22 crashes · 22 injuries

Complaints by component

POWER TRAIN282 · 34%
STEERING204 · 24%
ENGINE172 · 21%
ELECTRICAL SYSTEM147 · 18%
AIR BAGS128 · 15%
UNKNOWN OR OTHER52 · 6%

The years either side

2010
53%
269 of 686
2011
49%
164 of 485
2012
67%
458 of 833
2013
63%
358 of 650
2014
68%
391 of 654
2015
45%
177 of 469
2016
41%
154 of 459
2017
42%
115 of 309
2018
15%
268 of 1,815
2019
17%
124 of 737
2020
21%
122 of 608
2021
39%
353 of 912
2022
43%
160 of 383
2023
45%
150 of 342

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 SUVs with no elevated signal in 2012

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

VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM01/25/2017CRASH2 INJURED
WHILE TURNING TO PARK THE ENGINE THROTTLE SUDDENLY ACCELERATED & JEEP JUMPED THE CURB, CRASHED THRU A FENCE & ENDED UP IN THE OCEAN. WE WERE RESCUED BY DANA POINT HARBOR PATROL.
ENGINE06/26/2022FIRE1 INJURED
I was driving on the highway and the engine caught fire. I’ve been looking for an engine to rebuild and all of them had previously been on fire. I believe the engine is defective for the jeeps that year, make and model.
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE04/24/20151 INJURED
I HAVE HAD AT LEAST 100 TIMES WHERE MY JEEP HAS STALLED AND JUST STOPPED RUNNING. IT HAS HAPPENED WHEN I HAVE SLOWED DOWN, AND HAS STOPPED IN INTERSECTIONS. IT HAS STOPPED WHEN STARTING FROM A STOP ETC. I HAVE HAD NUMEROUS MANUAL TRANSMISSION CARS AND THIS HAS NEVER HAPPENED. IT SCARES ME , AND MAKES ME FEAR FOR MY LIF…

Three of 458 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (10)

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Chrysler (FCA US LLC) is recalling certain 2010 Dodge Ram 3500, Ram 4500/5500, 2010-2011 Dodge Dakota, 2010-2014 Dodge Challenger, 2010-2015 Dodge Challenger, Chrysler 30…
SEAT BELTS:FRONT:ANCHORAGE
Chrysler (FCA US LLC) is recalling certain 2011-2018 Jeep Wrangler right hand drive vehicles. The driver's seat belt buckle mounting strap may fracture and separate from…
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Chrysler (FCA US LLC) is recalling certain 2009-2013 Jeep Wrangler, Chrysler 300, Dodge Challenger and Dodge Charger vehicles, and 2009-2011 Dodge Dakota vehicles sold, o…

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

Before you buy a 2012 Jeep Wrangler

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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.