Service bulletins for the 2012 Jeep Grand Cherokee
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.
258 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| 07-003-14 | 2018-06-18. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; ENGINE AND ENGINE COOLING. Coolant Weepage At EGR Hose This bulletin involves replacing the EGR hose. The EGR coolant hose may weep coolant. |
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| 18-036-14 | 2018-06-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Flash: Difficult to Start Engine In Cold Ambient Temps When Using the Block Heater. Also Includes Powertrain System Enhancements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience the following condition: Engine is difficult to start in extreme cold ambient temps when using the block heater. This release improves the spark and fueling strategy used under these conditions.The following system improvements have also been included in this software release: Improved Electronic Voltage Regulator control to more precisely maintain system voltage. |
| 18-035-14 | 2018-06-18. Service bulletin. ELECTRICAL SYSTEM; ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Surge, Shudder or Pulsation at Highway Speeds This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.This is an optional software update that should only be used in situations where the customer is specifically complaining of the condition described below. A small number of customers may experience a surge, shudder or pulsation type sensation when driving on smooth road surfaces at highway speeds of 40-80 mph (64-129 km/h). Some customers may also describe the sensation similar to that of a fish biting on a fishing line.This is an optional software update that should only be used in situations where the customer is specifically complaining of the above condition. There will be two separate software options displayed on the wiTECH flash tab. The software file released for this SB contains the verbiage ?REFERENCE SB 18-035-14. THIS FLASH TO BE USED ONLY FOR SHUDDER COMPLAINTS?. The other file is the standard software that does not contain improvements for this complaint. If for some reason the customer finds this shudder improvement objectionable, the PCM software may be returned/reflashed to the standard version.If the customer complains of the above condition, perform the Repair Procedure. |
| 17-002-14 | 2018-06-18. Service bulletin. SUSPENSION:REAR:SHOCK ABSORBER. Rear Shock Absorber Low Speed Rattle Chuckle Noise This bulletin involves replacing both rear shock upper mounts. The rear shocks may produce a rattle chuckle noise while driving over bumps at low speed. The noise is more prevalent at higher shock temperatures. |
| Z5091195A$ | 2018-06-11. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL. RES / RHA / REB radio that supports Bluetooth and Hands-Free For issues with Bluetooth, Hands-Free Calling, and/or Voice Commands, DO NOT replace the radio. Diagnose the Hands-Free Module system (also called the Telematics Module). The Telematics Module (and associated components) is the system responsible for these features. A power cycle may be required for the hands-free module for proper diagnosis.~ Please reference; 8T - Navigation/Telecommunication Diagnosis and Testing (DIAGNOSIS AND TESTING - HANDS FREE PHONE) |
| 09-001-13 | 2018-06-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. Gasoline Engine Diagnostic Inspection Procedure This bulletin provides a procedure to determine repair versus replacement of a gasoline long block engine assembly. This procedure is to be used prior to conducting any engine related repairs or removal of engine components. |
| 08-005-13 | 2018-06-11. Service bulletin. ELECTRICAL SYSTEM. Flash: Power Liftgate May Not Power Open Or Close This bulletin involves reprogramming the Power Liftgate Module with new software. The customer may experience the Power Lift Gate not opening and closing under power. Upon further investigation the Technician may find that B1882 Power Liftgate Position Sensor 1 Circuit set.Updating the software will correct the conditions listed above. |
| 9003694 | 2018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. Oil Pump Assembly If error code P06DD present on any Pentastar V6 application, please inspect oil pump for relief valve failure. See photo attached. If valve is found out of place please call Bob Jackson (248) 944-0466 bob.jackson@fcagroup.com, or Joe Lovell (734) 309-6467 joe.lovell@fcagroup.com before proceeding. If unable to reach after 15 minutes record the following information and proceed with oil pump replacement and hold part for return to FCA via Fastrack system |
| 9003681 | 2018-06-11. Service bulletin. SEAT BELTS. Restraints Information Sheet (I-Sheet) has been added to Star Parts. Print I-Sheet for technician use. |
| 9003687 | 2018-06-11. Service bulletin. SEAT BELTS. Restraints Remove I-Sheet from packaging. Correct information sheet (I-Sheet) has been added to Star Parts. Print I-Sheet for technician use. |
| 68277402A | 2018-06-11. Service bulletin. VEHICLE SPEED CONTROL:CRUISE CONTROL. Adaptive Cruise Control Sensor 1) If you are replacing this part due to the cluster displaying Clean Radar Sensor in Front of Vehicle or DTC C1266 ACC Sensor Blinded, please verify that there is no blockage in front of the sensor. Blockage can occur from mud, ice, snow, front end damage, bracket damage, the sensor not attached to the bracket properly or an aftermarket fascia installed. This fault can occur intermittently in muddy or icy/snowy conditions and is considered normal operation. Under some circumstances, a misaligned sensor can also cause the C1266 DTC, please complete an alignment procedure. No replacement is required.~ 2) If you are replacing this part due to the cluster displaying ?ACC/FCW Unavailable Service Required?, please check the DTC fault codes. This will indicate which module needs to be serviced (TCM, PCM, ESP/ABS, etc). This fault is not due to the ACC Sensor. No sensor replacement is required.~ 3) If you have fault code DTC C125E ACC Sensor Adjustment Required, please verify that the radar sensor is fully seated in the clips and there is no damage (if clips are damaged on a 2013 or earlier vehicle, order P/N 68085813A$, otherwise please replace the module), please verify there is no blockage to the sensor due to mud, ice, snow, front end damage, bracket damage or the sensor not attached to the bracket properly. Perform the Vertical Alignment and the Electronic Horizontal Alignments procedure as stated in the service manual. Please note, if the horizontal alignment procedure will not complete, check the vertical alignment and confirm that the sensor is seated properly. Rerun the horizontal alignment procedure. No sensor replacement is required. **Hints for running Horizontal Alignment procedure: A) Verify speed is between 45 and 75 mph, B) verify the road is relatively straight with signs, poles, guard rails, etc C) Do not tail a vehicle too closely this inhibits the learning procedure |
| 09-002-14 REV. B | 2018-06-11. Service bulletin. ENGINE AND ENGINE COOLING. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any the following Diagnostic Trouble Codes have been set: P0300- Multiple Cylinder Misfire P0302- Cylinder 2 Misfire P0304- Cylinder 4 Misfire P0306- Cylinder 6 Misfire |
| 02-004-14 REV. B | 2018-06-11. Service bulletin. SUSPENSION. Vehicle Leads or Drifts To The Left - Right Hand Drive (RHD) This bulletin involves an alignment specification change for camber. Customer may describe a lead or drift to the left condition at steady state speeds of 56 KPH (35 MPH) and above. |
| 08-086-14 REV. A | 2018-06-11. Service bulletin. EQUIPMENT. 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. |
| 21-033-14 | 2018-06-11. 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 |
| 19-003-14 | 2018-06-11. Service bulletin. STEERING. Clunk And/Or Bump Felt Through The Steering Wheel Under Moderate Braking And/Or Driving Over Rough Roads This bulletin involves road testing and if necessary replacing the intermediate shaft. Clunk and/or bump felt through the steering wheel under moderate braking or driving over rough roads. This can be caused by spline stick/slip from the intermediate shaft. |
| 09-002-14 REV. A | 2018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any the following Diagnostic Trouble Codes have been set: ? P0300- Multiple Cylinder Misfire ? P0302- Cylinder 2 Misfire ? P0304- Cylinder 4 Misfire ? P0306- Cylinder 6 Misfire |
| 08-086-14 | 2018-06-11. Service bulletin. EQUIPMENT. 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. ? CD/DVD will not play (RHB only). ? Navigation accept screen will not clear (RHB only). ? Navigation shows ?acquiring signal? for an extended period of time (RHB only). ? New navigation graphics (RHB only). ? Sirius audio pop on power up. ? HFM audio pop on power up. ? HFM Mode resume with no information. ? Trip planner does not save a route after is was created (RHB only). ? Route guidance does not activate after the vehicle shuts down (RHB only). ? Longitude entry does not allow enough digits (RHB only). |
| 09-002-14 | 2018-06-11. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. 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: ? P0300- Multiple Cylinder Misfire ? P0302- Cylinder 2 Misfire ? P0304- Cylinder 4 Misfire ? P0306- Cylinder 6 Misfire |
| 02-003-14 | 2018-06-11. Service bulletin. SUSPENSION. Vehicle Leads or Drifts To The Right This bulletin involves an alignment specification change for camber. Customer may describe a lead or drift to the right condition at steady state speeds at 35 MPH and above. |
| 24-002-14 | 2018-06-11. Service bulletin. EQUIPMENT:ELECTRICAL. Driver And Passenger HVAC Blower Air Temperatures Are Not The Same When ?Sync? Setting Mode Is Selected And Headlamps Always Stay On. This bulletin involves selectively replacing the solar sensor. Customers may experience the following condition: When using the Automatic Temperature Control ?SYNC? mode, left and right outlet temperatures do not match regardless of the desired temperature setting is the same. Occupants will experience being cold (winter time), on either passenger or driver side, even though the temperature setting is the same. Headlamps are always staying on, when they are set to Auto mode. |
| P14040214 | 2018-06-11. Service bulletin. SERVICE BRAKES, HYDRAULIC. New Safety Recall Advanced Communication ? P14040214 Chrysler Group LLC (Chrysler) announced a safety recall on certain 2011 through 2014 model year (WD) Dodge Durango and (WK) Jeep Grand Cherokee vehicles. Some Jeep Grand Cherokee and Dodge Durango vehicles may have a brake booster that could prematurely corrode. If perforation of the brake booster shell (due to corrosion) occurs, the brake booster may ingest water during vehicle operation during wet weather conditions. A brake booster that has experienced water ingestion may have the brake function compromised if the water inside the brake booster freezes. The driver may be required to apply additional application force to apply the brakes during sub-freezing driving conditions. An unexpected additional brake pedal application force requirement could slow the driver?s brake application reaction time and cause a crash without warning. Chrysler will conduct a voluntary safety recall on all involved vehicles to inspect the brake booster for corrosion. Brake boosters found with excessive corrosion will be replaced. All boosters will be equipped with a shield to protect the brake booster crimp joints from water exposure. Dealers will be notified of the launch of this safety recall by way of established methods used in the past. We ask that you please take the time to ensure that your personnel are aware of this communication and are prepared to execute a customer friendly process for inquiries on involved vehicles. |
| 09-001-13 | 2018-06-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Gasoline Engine Diagnostic Inspection Procedure This bulletin provides a procedure to determine repair versus replacement of a gasoline long block engine assembly. This procedure is to be used prior to conducting any engine related repairs or removal of engine components. |
| 08-005-13 | 2018-06-04. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE; ELECTRICAL SYSTEM. Flash: Power Liftgate May Not Power Open Or Close This bulletin involves reprogramming the Power Liftgate Module with new software. The customer may experience the Power Lift Gate not opening and closing under power. Upon further investigation the Technician may find that B1882 Power Liftgate Position Sensor 1 Circuit set.Updating the software will correct the conditions listed above. |
| 23-016-16 | 2018-06-04. Service bulletin. SEATS:FRONT ASSEMBLY:HEAD RESTRAINT; SEATS:MID/REAR ASSEMBLY; EQUIPMENT. Chirping Or Squeaking Coming From The Second Row Headrest This bulletin involves applying lubricant to the headrest mechanism and seat back panel crossmember. Customers may describe a chirping or squeaking coming from the rear second row seat headrest(s) while driving. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.