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Service bulletins for the 2012 Jeep Wrangler

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

244 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
1012322024-11-07. Service bulletin. POWER TRAIN. Plate - Planetary
21033142023-01-17. Service bulletin. POWER TRAIN. MIL Illumination For P0730 And Transmission Shift Enhancements
18051142023-01-17. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: J8 Mining Vehicle Speed Limiting This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of J8 Vehicles built as over-the-road units for non-reg BUX markets and sold to US-based mining operations with the intent of re-programming the diesel PCM to limit vehicle-speed in the mining environment. The discretion of which mining flash is to be used is left to the discretion of the operator.
21013142023-01-17. Service bulletin. POWER TRAIN. Transmission Oil Cooler Tube
2101314-12023-01-17. Service bulletin. POWER TRAIN. N28 Transmission Oil Cooler Tube Interim Repair
V512022-12-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); UNKNOWN OR OTHER. Customer Satisfaction Notification V51 Reprogram Powertrain Control Module
S18210000012022-09-26. Service bulletin. POWER TRAIN. Gear Ratio DTC?s, Transmission Shift Concerns, Does Not Shift At Times, Shudders
90040092022-09-26. Service bulletin. POWER TRAIN. Transmission Kit with Torque Converter 1. All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) are one-time usage. Vehicles built prior to 10/23/2015 requires Service Kit PN 68461214AA; includes Transmission Isolator PN 68264483AA, and Adaptation Bracket 68264479AA and Fastener Service Kit PN 68329056AA Vehicles built after on or after 10/23/2015 will require only the Fastener Service Kit PN 68329056AA. 2. All 3.6L/62TE equipped vehicles. If the vehicle you are repairing has a crack in the flex plate or failed pump bushing inspect and confirm that both (2) dowel pins are present in the engine block, which align the transmission center line to the crank shaft centerline and visually inspect the dowel alignment holes in the transmission case. If the holes are damaged or elongated the transmission should be replaced to prevent further damage to the transmission/flexplate or pump bushing due to the inability to properly align the engine to the transmission during the repair. 3. All 62TE equipped vehicles. If pump bushing is scored or damaged and the dowel pin alignment holes are ok, replace the pump assembly as opposed to complete transmission. 4. All 62TE equipped vehicles. If vehicle is jerking/slipping with MIL code(s) P0740 or P2764, check TCC Solenoid operation. If TCC Solenoid is ok, the codes are indicative of a torque converter failure. Replace the torque converter.
08100142022-09-26. Service bulletin. VISIBILITY; POWER TRAIN. Loss Of Power Heated Mirror Function - Recall P61 Interim Repair This bulletin involves removing the M35 fuse.
18024132022-09-26. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: MIL Illumination P0830- Clutch Upstop Switch Rationality or P0456- Evap System Small Leak This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes have been set: P0830- Clutch Upstop Switch Rationality P0456 - Evap System Small LeakThe correction for Diagnostic Trouble Code P0456 only applies to 2013 Model Year vehicles.
N280606132022-09-26. Service bulletin. STEERING; POWER TRAIN. Some of the above vehicles may experience a condition where the power steering return tube contacts the aluminum transmission oil cooler tube. Continuous contact of the aluminum transmission oil cooler tube against the power steering return tube could cause a wear hole in the aluminum transmission oil cooler tube. This can result in a loss of transmission fluid which may damage the transmission and/or a loss of transmission function.
S802022-09-15. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Customer Satisfaction Notification S80 Aftermarket Dana 60 Front Axle The aftermarket front axle steering knuckles have been machined with an incorrect taper during the manufacturing process on about 250 of the above vehicles, with approximately 80 of the axles sold by Mopar aftermarket. This condition can result in premature axle knuckle wear. The aftermarket front axle knuckles must be replaced with new axle knuckles for the left side and right side.
21-013-142022-08-29. Service bulletin. POWER TRAIN; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); STEERING. Transmission Oil Cooler Tube This bulletin involves inspecting the transmission oil cooler tubes, power steering return tube and if necessary installing a protective sleeve on the transmission oil cooler tube. The customer inquires about Recall N28 and power steering return lines are not available, although the vehicle was built on or before February 23, 2013 (MDH 022317) equipped with 3.6L engine (sales code ERB), automatic transmission (sales code DGJ), left hand drive (sales code 5I8).
18025162022-08-22. Service bulletin. POWER TRAIN. Diagnostic And System Improvements.
21-013-142022-08-22. Service bulletin. POWER TRAIN. Transmission Oil Cooler Tube This bulletin involves inspecting the transmission oil cooler tubes, power steering return tube and if necessary installing a protective sleeve on the transmission oil cooler tube. The customer inquires about Recall N28 and power steering return lines are not available, although the vehicle was built on or before February 23, 2013 (MDH 022317) equipped with 3.6L engine (sales code ERB), automatic transmission (sales code DGJ), left hand drive (sales code 5I8).
21-005-132022-07-18. Service bulletin. POWER TRAIN. FLASH: MIL Illumination For P0730 - Incorrect Gear Ratio This bulletin involves updating the Transmission Control Module (TCM) software. Customers may indicate that the MIL is illuminated and/or the transmission went into limp-in. Upon further investigation, Diagnostic Trouble Code (DTC) P0730 - Incorrect Gear Ratio is either active or stored in the PCM?s memory.
N280606132021-03-22. Service bulletin. STEERING; POWER TRAIN. Some of the above vehicles may experience a condition where the power steering return tube contacts the aluminum transmission oil cooler tube. Continuous contact of the aluminum transmission oil cooler tube against the power steering return tube could cause a wear hole in the aluminum transmission oil cooler tube. This can result in a loss of transmission fluid which may damage the transmission and/or a loss of transmission function.
21-005-132021-03-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. FLASH: MIL Illumination For P0730 - Incorrect Gear Ratio This bulletin involves updating the Transmission Control Module (TCM) software. Customers may indicate that the MIL is illuminated and/or the transmission went into limp-in. Upon further investigation, Diagnostic Trouble Code (DTC) P0730 - Incorrect Gear Ratio is either active or stored in the PCM?s memory.
V512020-01-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Customer Satisfaction Notification V51 Reprogram Powertrain Control Module
08-038-152018-12-10. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); POWER TRAIN. RBZ Or RHB Radio Software Enhancements This bulletin involves upgrading the software on the RBZ or RHB Radio. The customer may experience one or more of the following. ? When changing the language on the radio, the navigation may still display English. ? Help prevent navigation lockup. ? Ghost image of the vehicle?s brand logo on the display screen. ? Digital photos loaded onto the hard drive intermittently get lost. ? Sirius audio pop on power up. ? HFM audio pop on power up. ? HFM Mode resume with no information. SYMPTOM/CONDITION FOR RHB RADIOS ONLY: ? Trip planner does not save a route after is was created. ? Route guidance does not activate after the vehicle shuts down. ? Longitude entry does not allow enough digits. ? CD/DVD will not play. ? Navigation accept screen will not clear. ? Navigation shows ?acquiring signal? for an extended period of time. ? New navigation graphics.
06-001-152018-11-26. Service bulletin. POWER TRAIN:CLUTCH ASSEMBLY:PEDAL/HAND LEVER(MOTORCYCLE); BACK OVER PREVENTION. Squeak Noise While Depressing The Clutch Pedal This bulletin involves lubricating the clutch pedal return spring. Squeak noise from under the dash while depressing or releasing the clutch pedal.
18-025-162018-06-11. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: 3.6L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTCs): · U0140 Lost Communication With Body Control Module. Attempting to clear the DTC may be unsuccessful. Other enhancements included in this update: · Improved fuel pump relay operation. · Improved remote start time after key activation. · Improved Automatic Shutdown Relay (ASD) timer calibration.
18-051-14 REV. A2018-06-11. Service bulletin. POWER TRAIN. Flash: J8 Mining Vehicle Speed Limiting This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of J8 Vehicles built as over-the-road units for non-reg BUX markets and sold to US-based mining operations with the intent of re-programming the diesel PCM to limit vehicle-speed in the mining environment. The discretion of which mining flash is to be used is left to the discretion of the operator.
18-057-142018-06-11. Service bulletin. POWER TRAIN. Flash: MIL Illumination, P0830 Clutch Pedal Switch ?A? Circuit This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. The customer may experience an unwanted cruise control cancelation. Upon further investigation the technician may find P0830 - Clutch Pedal Switch ?A? Circuit.
21-033-142018-06-11. Service bulletin. POWER TRAIN; EXTERIOR LIGHTING; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. FLASH: MIL Illumination For P0730 And Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may find that Diagnostic Trouble Code (DTC) P0730 Incorrect Gear Ratio is setting erroneously. In addition to correcting the DTC, the following Transmission Control Module (TCM) calibration improvements are now available. These updates are broken down by vehicle line and engine category.WK, WD, JK and LC Vehicles equipped with a 3.6L engine (Sales Code ERB) Hanging in gear during HOT ambient temperature conditions while vehicle is loaded or towing. Delayed downshift during acceleration at speeds above 48 kph. (Taiwan, Japan, and China market only). Delayed downshift when driving at altitudes higher than 2500 feet. Inconsistent shifting when towing or while driving up or down steep hills. Delayed upshift while driving in 4 low Intermittent delayed shift. Delayed engagement when shifting from drive to reverse while in 4 low. (JK Rubicon only) Delayed shift from second gear while towing or driving on steep grades. (JK Rubicon only) Intermittent delayed engagement from reverse to drive. Less than desired shift quality in AutoStick mode. (LC vehicles only) Fuel economy improvements. (LC vehicles only)LC Vehicles equipped with a 5.7L engine (Sales Codes EZH or EZC) Hanging in gear during HOT ambient temperature conditions while vehicle is loaded or towing. Bump sensation felt during deceleration or braking. Fuel economy improvements.LC and WK Vehicles equipped with a 6.4L engine (Sales Codes ESH or ESG) Bump sensation felt during deceleration or braking. (LC only) Inconsistent downshift during Wide Open Throttle (WOT) accelerations at highway speeds (i.e. passing). Transmission enhancements to improve acceleration while in reverse going uphill on steep

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.