Research · Sport Utility Vehicle - 4WD
2012 Jeep Wrangler UnlimitedRecalls, problems, MPG & safety
NHTSA lists 0 safety recalls and 836 owner complaints for the 2012 Jeep Wrangler Unlimited. Most complaints involve power train (282) and steering (204). The EPA rates it 18 mpg combined.
Combined MPG
18mpg
EPA · 2 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
836
Top: power train
Fuel cost / yr
$3,450est.
EPA estimate, best version
Safety recalls
NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2012 Jeep Wrangler Unlimited as of Nov 10, 2026.
Data from NHTSA Recalls API · synced Nov 10, 2026NHTSA vehicle page
Owner complaints by component
836 complaints filed with NHTSA · Sep 2011 – Nov 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 10, 2026 · Full problem breakdownNHTSA vehicle page
What owners report most
Verbatim excerpts from NHTSA complaints, by component
Power train
282 reports3 crashes1 fire
“My Oil pump and oil sensor keep going out every 4,000 miles. I have already had to replace it once. I don’t want to have to do it again. Clearly something is causing this issue.”
Steering
204 reports3 crashes
“Revision 6 November 2019 Dealer Service Instructions for: Customer Satisfaction Notification V41Steering Damper 2018 - 2019 (JL) JeepWrangler vehicles front suspension steering damper on about 192,000 of the vehicles may not effectively damp oscillation of the steering system, resulting in a sustained shake or shimmy in the steering wheel. I have a 2012 Wrangler with the same issue - front-end shake/shimmy. My Mechanic said to replace the stabilizer with the next level-up heavier-duty stabilizer from Mopar. Why isn't my Jeep (JK Series) included in this recall? There aren't any of these stabilizers available at Mopar or online due to exceedingly high demand from vehicle owners. This should obviously be a recall.”
Engine
173 reports1 crash10 fires
“While driving my 2012 Jeep Wrangler Sport, the vehicle experienced a sudden and severe loss of engine power due to a cylinder failure on the left/driver-side cylinder head (cylinder #2). This defect causes the engine to experience persistent cylinder misfires, resulting in severe engine stumbling, hesitation, and a dangerous drop in acceleration capabilities. This creates an immediate safety hazard when attempting to merge onto high-speed highways, pull out into active traffic, or navigate intersections, as the vehicle cannot accelerate predictably to match traffic speeds. Furthermore, the persistent misfire causes unburned fuel to dump into the exhaust system, creating a secondary risk of catalytic converter overheating, damage to the exhaust system, and a potential engine bay fire hazard. This vehicle has only 86,000 original miles. This specific 3.6L Pentastar engine generation is subject to a widely documented manufacturing defect involving premature valve seat and head failure, which manifests as an unpredictable and sudden loss of motive power while the vehicle is in motion.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026
Engines, transmissions & drive
2 versions rated by the EPA
- EPA class
- Sport Utility Vehicle - 4WD
- Engines
- 3.6L 6-cyl
- Transmissions
- Automatic 5-spd · Manual 6-spd
- Drive
- 4-Wheel Drive
- Fuel
- Regular Gasoline
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
Data from EPA fueleconomy.gov · synced Nov 10, 2026EPA listing
EPA fuel economy by version
City / highway / combined, annual fuel cost and CO₂
EPA
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Wrangler Unlimited 4WD Auto 5-spd, 6 cyl, 3.6 L · 4-Wheel Drive | 16 | 20 | 18 | $3,450 | 494 |
| Wrangler Unlimited 4WD Man 6-spd, 6 cyl, 3.6 L · 4-Wheel Drive | 16 | 21 | 18 | $3,450 | 494 |
- 18mpg comb.
- 18mpg comb.
Data from EPA fueleconomy.gov · synced Nov 10, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
NHTSA 5-Star Safety Ratings
1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2012 Jeep Wrangler Unlimited as of Nov 10, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 10, 2026Vehicle 6321
Maintenance basics
General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
- Engine oil & filter5,000–10,000 mi
6–12 months - Tire rotation5,000–7,500 mi
Every oil change - Engine air filter15,000–30,000 mi
1–2 years - Cabin air filter15,000–25,000 mi
1–2 years - Brake fluid—
2–3 years - Coolant60,000–100,000 mi
5–10 years - Spark plugs60,000–100,000 mi
— - 12V battery—
3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
2012 Wrangler Unlimited questions
How many recalls does the 2012 Jeep Wrangler Unlimited have?
0 recalls found in NHTSA data as of Nov 10, 2026.
What are the most common 2012 Jeep Wrangler Unlimited problems?
Owners filed 836 complaints with NHTSA. The most-cited components are power train (282), steering (204), engine (173). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 2012 Jeep Wrangler Unlimited get?
The EPA rates the 2012 Jeep Wrangler Unlimited at 18 mpg combined, depending on engine and drivetrain (2 versions rated).
Data from NHTSA & EPA · synced Nov 10, 2026