2012 Jeep Wrangler Problems

What owners report

Owners of this model year most often write about the engine's plastic oil filter/cooler housing leaking oil or coolant, air bag warning lights tied to the clockspring, and the Pentastar V6 valvetrain tick. Steering complaints — vague, wandering steering and occasional front-end shimmy at highway speed — are also frequent, and several describe the vehicle stalling or shutting off at low speed. Many reports arrive between roughly 50,000 and 120,000 miles, with a notable cluster of leaks and warning lights on vehicles that have been in service for several years.

1. 1
   Air bags

   Air bag warning light — clockspring

   • 122 complaints (15%)
   • median 62,000 mi at 4.6 yrs old (92 state mileage)
   • 4 mention a crash, fire or injury
   • owner-quoted repair $1,050 (median of 8 quotes)
   • filed 2012–2026

   Owners report the air bag warning light staying on, sometimes intermittently while turning, along with the horn, steering-wheel audio buttons and cruise control controls failing, and in some cases a clicking or popping sound from the steering column. Complaints describe the clockspring being diagnosed, sometimes on vehicles previously serviced under an air bag recall, and note that a replacement part was not always available. Reported widely across the mileage range, from about 50,000 up past 150,000 miles, often with warning lights appearing after years of use.

   Recall 16V288000Recall 13V176000Recall 11V528000Recall 19V018000 · DO NOT DRIVE

   What to check: With the ignition on, confirm the air bag light goes out after the bulb check, and test the horn and steering-wheel buttons. Ask whether any air bag recall or clockspring replacement has been performed and whether a scan shows a driver-side squib or clockspring code.

   2 excerpts from owner complaints in NHTSA records

   “I had recall performed on Jeep by bob moore chrysler in tulsa. After they did service the airbag warning light came on in less than two days. When we took Jeep back to them they said it was the spring on the drivers side and had nothing to do with their repair. I contacted Jeep' s corporate office and was told that my year Jeep had a recall for the drivers side airbag spring but not for my VIN. They told me to make a complaint on here so it could be added to the recall listing.”

   NHTSA complaint #11317972, filed 2020-03, 159,640 miles

   “I had my driver's side clock spring replaced at dealership in 2019 due to recall. Last 2 months, airbag light comes on and off but usually only when I am in full turn. On aug 3, 2020, I noticed my outside temp was reading celsius so I tried to change it back to fahrenheit. Button was not working. Checked my horn...nothing....cruise control....nothing. I noticed my steering wheel making clicking kind of popping sound. 30 min later, I put my Jeep in park and the air bag deployed.”

   NHTSA complaint #11343534, filed 2020-08, 237,000 miles
2. 2
   Electrical system

   Engine shuts off or stalls while driving or idling

   • 91 complaints (11%)
   • median 47,263 mi at 4.6 yrs old (73 state mileage)
   • 5 mention a crash, fire or injury
   • owner-quoted repair $1,000 (median of 8 quotes)
   • filed 2012–2026

   Complaints describe the engine dying at stoplights, while idling, or while turning, with the dash lights cycling and the vehicle sometimes restarting only after the key is cycled or the battery is disconnected. Owners often point to the power module or control module, and several say mechanics could not find a stored code. Some mention a powertrain control module reprogramming notice arriving after the problem began. Reported from about 50,000 to 120,000 miles, with several examples under 60,000.

   Recall 14V6310002 related service bulletins

   What to check: Ask whether the powertrain control module has been reprogrammed and whether any module or connector repairs have been done. Have a shop scan for stored codes and check battery charging and ground connections.

   2 excerpts from owner complaints in NHTSA records

   “My Jeep will randomly just shut off while idling in a parking lot or stopped at a ligh. If I turn the key it will start right back up. No check engine lights or codes. I have had it to a mechanic and they can't figure out what is wrong .”

   NHTSA complaint #11354624, filed 2020-09, 118,000 miles

   “Jeep loses all power while driving. I have a 1 year old and this is very very dangerous. Ive had to stop and pull battery power terminal off multiple times to reset it. The Jeep completely dies then all lights and switches start firing. Jeep will not restart. Debating selling it and getting something other than a Jeep product. Battery is good and alternator is good. I had both checked by a mechanic. This has happened multiple times and I take great care of my Jeep as well.”

   NHTSA complaint #11355714, filed 2020-09, 56,000 miles
3. 3
   Engine

   Oil/coolant leak from plastic oil filter adapter housing

   • 82 complaints (10%)
   • median 23,000 mi at 2.5 yrs old (49 state mileage)
   • 1 mention a crash, fire or injury
   • filed 2012–2023

   Complaints describe oil pooling under the vehicle, oil running down the engine and onto the exhaust, or coolant mixing into the oil from a cracked plastic housing on top of the engine. Some owners say the part cracked during what they considered a routine oil change; others noticed the leak only from a puddle, since no warning light came on. Several report the dealer replaced the housing, and some mention a revised or redesigned part being fitted. Mostly reported between roughly 50,000 and 115,000 miles, often noticed after an oil change or when oil drips onto the exhaust.

   5 related service bulletins

   What to check: Look for oil residue or staining around the top-front of the engine and on the ground under it, and ask whether the oil filter adapter/housing has been replaced. Note that service bulletins describe an oil filter adapter seal kit and replacement procedure for this leak.

   2 excerpts from owner complaints in NHTSA records

   “The oil cooler failing, leaking. I have just discovered that my oil cooler is leaking from a puddle on the ground and my lower engine full of oil. I got no warning light. If there had not been a noticable puddle I would have never noticed it. If not my motor would have locked up and would need to be replaced. I checked my oil level and no oil is on the dipstick. I have done research and found that this is a very big problem in the Jeep community. I strongly feel that this should be recalled and repaired. …”

   NHTSA complaint #11395100, filed 2021-02, 112,672 miles

   “Began leaking small amount of oil under Jeep after use. Took to have issue investigated. Mechanic found the intake gasket on rear of intake causing the issue. Estimated cost to fix $600+ this appears to be a common issue for this Jeep, thus Jeep has never been off road and this should not have occurred. It should be covered under drive train warrenty or a recall as this a manufacturer issue.”

   NHTSA complaint #11318298, filed 2020-03, 52,000 miles
4. 4
   Engine

   Engine ticking from cylinder head / valvetrain

   Mentioned in 5 of 60 sampled complaints

   Complaints describe a ticking or tapping noise from the top of the engine, sometimes with the check engine light coming on, and dealers attributing it to a faulty cylinder head or valve. Some owners describe the noise as persistent and expensive to repair, and say other vehicles of the same years show the same symptom. Related reports mention rough running, misfires and loss of power with the engine light flashing. Often reported at low to moderate mileage, with several examples under 30,000 miles and others around 70,000.

   What to check: Listen to a cold and a warm start with the hood open for a tick from the upper engine, and check for stored misfire or cam/crank sensor codes. Ask whether the cylinder head or valvetrain has been serviced.

   2 excerpts from owner complaints in NHTSA records

   “There is a ticking noise coming from cylinder head. This is a issue that a lot of 2011-2012 Jeep wranglers have been having. It is not fair that this cost should come out of our pocket. Jeep knows about this issue from all the Jeep reviews I have seen people posting with the same issue.”

   NHTSA complaint #11300169, filed 2020-01, 70,000 miles

   “While driving engine looses power and vibrates excessively, engine light flashes during this process, after about 30 seconds light goes out and engine resumes normal operation. It has done this multiple times sometimes on startup sometimes stopped at a light and other while driving.”

   NHTSA complaint #11362910, filed 2020-10, 30,000 miles
5. 5
   Steering

   Vague steering and front-end shimmy at highway speed

   • 37 complaints (4%)
   • median 40,000 mi at 3.6 yrs old (33 state mileage)
   • 3 mention a crash, fire or injury
   • filed 2012–2026

   Owners report the vehicle wandering or following road grooves instead of tracking straight, and some describe a violent front-end shimmy and shake at around 45 MPH that required a firm grip to keep control. Complaints say dealers often could not duplicate the problem or found nothing wrong. Some owners replaced steering gear, tie rods and related parts without fully resolving it. Reported from low mileage up to around 100,000 miles, typically described at highway speeds.

   1 related service bulletin

   What to check: Test drive at highway speed and over uneven pavement, watching for wander, steering play and any shimmy. Check front-end components for wear and ask about prior alignment, steering damper or tie rod work.

   2 excerpts from owner complaints in NHTSA records

   “My 2012 Jeep Wrangler sahara unlimited 6 speed manual transmission suddenly started violently popping out of first gear. It is very random and unpredictable making it even more dangerous. I could be pulling out into a busy intersection, taking off from a stop sign/ light or pulling out from a parking space into traffic and my shifter will suddenly jump out of first gear into neutral, causing the car to lose all power. There is a loud sound and a feeling of scraping like the gears are being stripped. …”

   NHTSA complaint #11359888, filed 2020-09, 81,000 miles

   “I purchased this 2012 Wrangler in 2014 the next day I noticed the steering had play so I took it to the Jeep dealer they test drove it and said there was nothing wrong. I then replaced the steering gear and all the end links. It still follows the road instead of going straight. Driving this Jeep over 35 MPH is scary there is something wrong with the steering column and every time I told the Jeep deal they told me I am wrong. I have wasted so much money trying to fix this dangerous steering problem. There needs to be a recall for this issue. …”

   NHTSA complaint #11323991, filed 2020-05, 23,000 miles

Buying note. Check for oil or coolant leaks around the top of the engine and confirm the oil filter adapter housing and any air bag recall or clockspring work have been addressed. A highway test drive is worth doing to feel for steering wander or shimmy, and a scan for stored codes can reveal misfire, sensor or module faults that do not show a light on the dash.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.