2012 Jeep Wrangler Jeep Wrangler 2012

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2012 Jeep Wrangler repairs by problem area

Engine (25%)

Transmission and Drivetrain (10%)

Brakes and Traction Control (12%)

Suspension and Steering (6%)

Electrical and Air Conditioning (20%)

Paint, Rust, Leaks, Rattles, and Trim (22%)

Other (6%)

Chart based on 162 repairs.
See TSBs and recalls for the 2012 Jeep Wrangler.

2012 Jeep Wrangler engine repair cost distribution

$2500+ (0%)

$1000 - $2499 (3%)

$500 - $999 (11%)

$100 - $499 (20%)

< $100 (66%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 35 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2012 Jeep Wrangler 4dr SUV

285-horsepower 3.6L V6 6-speed manual 4WD, part-time w/low range

53000 mi

US $20
Replaced oil drain plug due to over tightening at previous shop during oil change 
68000 mi

US $350
Idler pulley had failing barring 
90000 mi

US $5
Exhaust rattle caused by loose heat shield over muffler. 
6000 mi Driver's side cylinder head replaced. Defective part replaced with upgraded (revised) part. 
38500 mi MIL goes off and one intermittently. Engine also has developed a slight miss. Dealer says to bring it back at a later date for more extensive testing. Through more testing the dealer discovered a bad cylinder head and replaced it. Dealer replaced left cylinder head 
23000 mi The usual cylinder #4 fault that afflicts pentastar engine. Replaced left cylinder head. Check engine light on. Left cylinder head failing. Cylinder replaced. 
23000 mi

US $347
CEL on. Code DCT P0456 EVAP. Small leak.ESIM and fuel cap failed. Replaced both. 

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2012 Jeep Wrangler 4dr SUV

285-horsepower 3.6L V6 5-speed shiftable automatic 4WD, part-time w/low range

68000 mi

US $915
Cracked oil cooler/filter housing 
43400 mi

C $700
Consuming Rad fluid. Replace radiator 
31000 mi Radiator had a small leak, it was replaced under warranty before we bought the vehicle. 
49000 mi

US $150
motor oil leak 
9000 mi

US $12
Replaced the Crankcase sensor do to Jeep stalling a few times at low speeds such as backing out of a parking space. Has not stalled since I replaced the sensor. 
61000 mi

US $27
Canister purge valve. Error code accurate, inexpensive part, easy to install. 
89900 mi

C $250
thermostat replacement 
26300 mi Replaced Left Cylinder Head 
36300 mi

US $300
Any time this Jeep goes offroad or even is on a bumpy road for more than a minute or so, it starts to show at least one of several lights on the dash. Seems it is because the dealer damaged the wiring harness while doing a warranty repair. 
6200 mi Problemes de démarrages sporadiques. Aucun message dans l'OBDII. Reprogrammé avec le nouveau firmware mais le problème persiste. 
154000 mi

US $200
Irregular temperature reading. Replace thermostat. 
13640 mi Check engine light - Cylinder 4 misfire. Cleared the code. No repair needed. 
13640 mi Replaced a cylinder head under warranty. Experienced rough ride and rough idling. Engine light went on. Brought to the dealer and had to leave overnight. Apparently this is known problem for 2012's 
14000 mi replace cylinder head 
66000 mi

US $550
The thermostat was replaced 
46500 mi Replaced cylinder head LT. CEL indicated mis-fire 
62000 mi

US $400
Coil-pack melted down in a glorious way.. it burnt the #1coil wire in the ECM harness all the way to the ECU. Replace coil pack, run wire outside of harness to said coil. Plug was fine. 

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2012 Jeep Wrangler 2dr SUV

285-horsepower 3.6L V6 6-speed manual 4WD, part-time w/low range

15000 mi There was an issue with the valve seat on cylinder 4. The dealer replaced a cylinder head. 
44100 mi

US $600
Replaced exhaust cam phasers on both banks due to failure indicated by multiple OBD failure codes 
31000 mi Engine ticks. 
118000 mi

US $40
CEL was throwing error that indicated an issue with the engine not reaching the correct temp. Replaced thermostat and replaced coolant. CEL cleared a couple days after. 
13300 mi Water pump squealing noise, especially at idle Water pump replaced under warranty 
11200 mi Muffler heat shield broke. Heat shield reinstalled with washers to prevent shield from falling off the studs. 

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2012 Jeep Wrangler 2dr SUV

285-horsepower 3.6L V6 5-speed shiftable automatic 4WD, part-time w/low range

17000 mi Asked dealer about loud ticking noise coming from driver side cylinder head. Dealer changed out 4 lifters out of spec. Noise remained, dealer stated "these engines are noisy" ... engine stumbles at idle now and has lower mpg than before 
25000 mi Engine still ticking, and starting to stumble now, took to dealer, they found lifters out of spec again, replaced parts again. Haven't driven it enough yet to determine if they've fixed it this time. 
7000 mi Engine light on. Software updated 
3000 mi unintended acceleration 
Not sure because they can't find the problem. Jeep randomly will not start. Auto start will occasionally work when ignition doesn't but sometimes it turns right back off after 3-5 seconds. No problem is registering on the diagnostic? 
34700 mi

US $1100
The Totally Integrated Power Module (TIPM) failed and required replacement. Even though there's a class action lawsuit for this issue against Chrysler, the warranty was not honored, I was blamed for the failure and paid all repair costs. 
90000 mi

US $20
Check engine light, code pulled stated that the engine wasn't reaching operating temperature. Replaced the thermostat, thermostat housing, and flushed/replaced the coolant. 

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See TrueDelta's information for all Jeep models.

2012 Jeep Wrangler Engine Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2012 Jeep Wrangler problems occur, check out our car reliability stats.