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Service bulletins for the 2015 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.

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

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

Bulletins, newest first
21-027-15 REV-B2018-11-26. Service bulletin. POWER TRAIN. Flash: Transmission Shift Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. In addition, the following TCM calibration improvements are also available for vehicles equipped with the 845RE 8 speed transmission (Sales Code DFL). These improvements are listed per engine application. 3.0L Gas Engine (Sales Code EHD) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio. ? Improved upshift timing. ? Improved torque converter engagement. ? Improved shift timing during tow mode operation. ? Improved shift points during aggressive driving. ? Calibration improvement to correct bump feel during 2-1 downshift. ? Improved shift timing while in snow, base, and hill modes. 3.6L Gas Engine (Sales Code ERB) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio. ? Improved 4-3 and 3-2 downshifts. ? Improved shift timing at higher altitudes. ? Improved shift timing while in sand mode. ? Calibration improvement for multi-gear downshift timing during passing maneuvers. ? Calibration improvement for intermittent delayed upshift.
21-027-15 REV-A2018-11-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. Flash: Transmission Shift Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience an erroneous Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble Code (DTC) stored in the TCM memory. In addition, the following TCM calibration improvements are also available for vehicles equipped with the 845RE 8 speed transmission (Sales Code DFL). These improvements are listed per engine application. 3.0L Gas Engine (Sales Code EHD) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio ? Improved upshift timing. ? Improved torque converter engagement. ? Improved shift timing during tow mode operation. ? Improved shift points during aggressive driving. ? Calibration improvement to correct bump feel during 2-1 downshift. ? Improved shift timing while in snow, base, and hill modes. 3.6L Gas Engine (Sales Code ERB) ? P1DCD - TCM monitoring processor performance multiple clutches locked up. ? P1B13 - Park-By-Wire unintended out of park position. ? P0734 - Gear 4 Shift Incorrect Ratio ? Improved 4-3 and 3-2 downshifts. ? Improved shift timing at higher altitudes. ? Improved shift timing while in sand mode. ? Calibration improvement for multi-gear downshift timing during passing maneuvers. ? Calibration improvement for intermittent delayed upshift.
18-047-152018-11-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) Illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the PCM memory. ? P204F-00 - Reductant System Performance ? P20E9-00 - Reductant Pressure Too High ? P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control ? P2002-00 - Diesel Particulate Filter Efficiency Below Threshold ? P20C2-00 - Reductant Heater 3 Control Circuit Performance ? P2299-00 - Brake Pedal Position/Accelerator Pedal Position Incompatible ? P208B-00 - Reductant Pump 1 Control Performance ? P1288-00 - NOX Sensor 1/2 Zero Offset Too High
21-016-15 REVA2018-11-26. Service bulletin. POWER TRAIN. Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a ?Stop/Start Ready? message in the Instrument Panel Cluster (IPC) when the vehicle did not perform an auto stop event. This message typically occurs while the vehicle is being driven in Snow Mode. In addition, a small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. ? P061B - Internal Control Module Torque Calculation Performance. ? U0401 - Implausible Data Received From The ECM/PCM. ? P1DAD - Input Shaft/Output Shaft Direction Correlation. ? P1DAF - Incompatible Limp In Action Requested (set in conjunction with U1424 - Implausible Engine Torque Signal Received).
25-002-152018-11-19. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. P0455 And/Or P0456 Set In The PCM This bulletin involves replacing the evaporative emissions purge valve hose due to a split in the hose that will prevent the system from sealing. The customer may experience a Malfunction Indicator Lamp (MIL) while driving. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory. ? P0455 EVAP System Large Leak ? P0456 EVAP System Small Leak
21-018-152018-09-24. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Flash: 8HP70 SRT Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one or more of the following conditions. ? Less than desired gear shifts when driving on steep grades in lower altitudes. ? Less than desired gear shifts during aggressive, high speed driving. ? Erratic 1-2 upshift in cold ambient temperatures. ? Delayed engagement shifting from reverse to drive. ? Harsh or inconsistent upshift that happens intermittently. ? Harsh or inconsistent downshift that happens intermittently while coasting or during passing maneuvers. ? Intermittent delayed shift from 6th gear during aggressive high speed driving.
18-022-152018-09-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one of more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory. ? P20C2 - Reductant Heater 3 Control Circuit Performance. ? P204F - Reductant System Performance. ? P20E9 - Reductant Pressure Too High.
21-016-152018-09-24. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN; ENGINE. Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a ?Stop/Start Ready? message in the Instrument Panel Cluster (IPC) when the vehicle did not perform an auto stop event. This message typically occurs while the vehicle is being driven in Snow Mode. In addition, a small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) stored in the TCM memory. ? P061B - Internal Control Module Torque Calculation Performance. ? U0401 - Implausible Data Received From The ECM/PCM. ? P1DAD - Input Shaft/Output Shaft Direction Correlation. ? P1DAF - Incompatible Limp In Action Requested (set in conjunction with U1424 - Implausible Engine Torque Signal Received).
18-055-162018-06-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE. Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · ** P0456 - EVAP System Small Leak.** · P0301- Cylinder 1 Misfire. · P0302- Cylinder 2 Misfire. · P0303- Cylinder 3 Misfire. · P0304- Cylinder 4 Misfire. · P0305- Cylinder 5 Misfire. · P0306- Cylinder 6 Misfire · P0300- Multiple Cylinder Misfire. · P0513- Invalid SKIM Key.
18-043-16 REV. A2018-06-18. Service bulletin. ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience the following condition: · Buzzing type noise in the fuel rail area of the engine. · Bucking under hard acceleration. The software enhancements also include: · Improvements to protect engine from fuels out of the EN590 specifications or fuels with a high biodiesel content. · Improvements to the A/C compressor relay duty cycle operation to prevent ignition off battery draw.
T012018-06-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Customer Satisfaction Notification T01 Reprogram Powertrain Control Module The Powertrain Control Module (PCM) on about 15 of the above vehicles may have received PCM software containing calibration errors when recall S49 was performed. PCM software containing calibration errors may result in the radiator cooling fan producing excessive fan noise during operation. The PCM on involved vehicles must be reprogrammed with new software.
RL305553A2018-06-11. Service bulletin. POWER TRAIN. 9-spd Transmission: FOR NAFTA Market Only: If you are ordering this transmission please follow all wiTECH pop ups and Warranty Payment Guidelines. If this vehicle contains 1 of the 30 Diagnostic Codes in the 9 Speed Tutorial located on the Service Home Page then please follow the repair steps and submit a Topology report as well as a Vehicle Scan Report with the Warranty Claim.~
18-074-142018-06-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE. Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following software is being released to improve A/C compressor relay duty cycle operation to prevent ignition off battery draw.
21-040-142018-06-11. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: 8HP70 Transmission Shift Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one of more of the following conditions. Intermittent delayed upshifts in 1st or 2nd gear. Less than desired shift quality when operating the vehicle in Four Wheel Drive (4wd) Low mode. With the vehicle stationary and the Selec-Terrain system set to Snow Mode, the transmission will perform a 2-1 downshift when pressing the (+) steering wheel mounted shift paddle instead of remaining in 2nd gear.
21-039-142018-06-11. Service bulletin. POWER TRAIN. Flash: Transmission Shift Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. The following TCM calibration improvements are available for vehicles equipped with the 845RE 8 speed transmission (sales code DFL) or 8HP70 8 speed transmission (sales code DFD or DFK). These improvements are listed per engine application.3.0L gas engine (sales code EHD) Improved upshift timing. Improved torque converter engagement. Improved shift timing during tow mode operation. Improved shift points during aggressive driving. Calibration improvement to correct bump feel during 2-1 downshift. Improved shift timing while in snow, base, and hill modes.3.6L gas engine (sales code ERB) Improved 4-3 and 3-2 downshifts. Improved shift timing at higher altitudes. Improved shift timing while in sand mode. Calibration improvement for multi-gear downshift timing during passing maneuvers. Calibration improvement for intermittent delayed upshift.5.7L gas engine (sales code EZH) Improved upshift timing in eco, base, and hill modes and while using cruise. Improved 8-7, 3-2, and 2-1 downshift timing Improved shift timing at higher altitudes. Improved torque converter engagement.
21-038-142018-06-11. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: 8HP70 SRT Transmission Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience one of more of the following conditions. Harsh or inconsistent upshift that happens intermittently. Harsh or inconsistent downshift that happens intermittently while coasting or during passing maneuvers. Intermittent delayed shift from 6th gear during aggressive high speed driving.
18-063-142018-06-11. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Flash: 5.7L Powertrain Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. The following powertrain system improvements/enhancements are included in this software release. These symptoms are broken down by vehicle. 2015 WK * Enhancements to improve a slight lag or hesitation during Multi Displacement System (MDS) mode transitions. * Enhancements to improve a slight drop in engine RPM when the vehicle is shifted to reverse or drive within 3 seconds of a cold start. * Malfunction Indicator Lamp (MIL) illuminated with Diagnostic Trouble Code (DTC) U0140-00 - Lost Communication with Body Control Module (BCM). 2014 WD * Enhancements to improve a slight drop in engine RPM when the vehicle is shifted to reverse or drive within 3 seconds of a cold start.
21-030-14 REV. A2018-06-11. Service bulletin. POWER TRAIN. 845RE Transmission Quick Learn Procedure This bulletin provides information on how to perform the new scan tool based transmission Quick Learn procedure. This procedure is required after certain transmission repairs or to improve a customer's concern of poor shift quality. Customers may indicate that their transmission shift quality does not meet their expectations.
21-030-142018-06-11. Service bulletin. POWER TRAIN. 845RE Transmission Quick Learn Procedure This bulletin provides information on how to perform the new scan tool based transmission Quick Learn procedure. This procedure is required after certain transmission repairs or to remedy a customer?s concern of poor shift quality. Customers may indicate that their transmission shift quality does not meet their expectations.
21-012-14 REV. B2018-06-11. Service bulletin. POWER TRAIN. 8 Speed Transmission Shift Adaptation, Drive Learn Procedure This bulletin involves performing a Transmission Adaptation Learn procedure based on a subjective shift quality rating evaluation.The adaptation drive learn procedure must be performed on all 8-speed transmissions when the transmission is repaired/replaced and/or the Valve Body/TCU assembly (mechatronic) is replaced, or when the adaptation memory cells are cleared with the wiTECH diagnostic scan tool. Customers may indicate that their transmission shift quality does not meet their expectations.
18-043-162018-06-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; EQUIPMENT. Flash: 3.0L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience the following condition: · **Buzzing type noise in the fuel rail area of the engine.** · Bucking under hard acceleration. The software enhancements also include: · **Improvements to protect engine from fuels out of the EN590 specifications or fuels with a high biodiesel content.** · Improvements to the A/C compressor relay duty cycle operation to prevent ignition off battery draw.
03-001-16 REV. A2017-11-03. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT; POWER TRAIN. Replace Left Front Axle Half Shaft This bulletin involves inspecting and, if necessary, replacing the left front axle half shaft due to grease leaking from the boot. The customer or technician may find grease leaking out of the left front axle half shaft inner boot.
18-098-162017-11-03. Service bulletin. POWER TRAIN; FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · **P1115 - General Temperature Rationality. · P0441 - EVAP Purge System Performance. · P0456 - EVAP System Small Leak. · P030X - Cylinder x Misfire Detection. · P0335 - Crankshaft Position Sensor Circuit. · P0122 - Throttle Position Sensor 1 Circuit Low. · P0123 - Throttle Position Sensor 1 Circuit High. · P0222 - Throttle Position Sensor 2 Circuit Low. · P0223 - Throttle Position Sensor 2 Circuit High. · P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible. · P2172 - High Airflow/Vacuum Leak Detected (Instantaneous Accumulation). · P2610 - PCM Internal Engine Off Timer Performance.** · P0300 - Multiple Cylinder Misfire. · P2096 - Downstream Fuel Trim System 1 Lean. · P2097 - Downstream Fuel Trim System 1 Rich. · P2098 - Downstream Fuel Trim System 2 Lean. · P2099 - Downstream Fuel Trim System 2 Rich. · P0513 - Invalid Skim Key - May set when pressing the remote start button on the Frequency Operated Button/Integrated Key (FOBIK) and Keyless Ignition Node (KIN) at the same time. Customers may also experience one or more of the following conditions: · Unable to obtain top vehicle speed during aggressive Wide Open Throttle (WOT) operation due to false spark knock/detonation detection. · Less then desired engine performance on cold start.
03-001-162017-10-21. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. Replace Left Front Axle Half Shaft This bulletin involves inspecting and, if necessary, replacing the left front axle half shaft due to grease leaking from the boot. The customer or technician may find grease leaking out of the left front axle half shaft inner boot.
03-001-162016-06-22. Service bulletin. POWER TRAIN. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

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