COMPONENT SPOTLIGHT

Jeep Grand Cherokee transmission problems

1,919 distinct owner reports with a transmission-specific component in this snapshot.

General power-train reports are not automatically counted as transmission problems. Related recalls and investigations must also name this component; they are not linked by narrative keyword alone.

524 crash reports13 fire reports289 injury reports

Reports by model year

Recall and investigation columns show each year’s full history. A report naming several years can appear in more than one row.

When problems were reported

Mileage at the reported incident

Limited mileage data: 343 of 1,919 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What owners actually said

1,919 reports
1993 model year · Mileage unknown · Aug 14, 2002
Power TrainCrash

ENGINE WAS RUNNING CONSUMER PUT VEHICLE IN PARK, WENT INTO HOUSE AND VEHICLE JUMPED INTO REVERSE AND CRASHED INTO SOME TREES. CONSUMER FEELS THIS IS VERY DANGEROUS, PASSENGER HAD TO BAIL OUT OF VEHICLE. PLEASE PROVIDE ANY FURTHER INFORMATION.*AK

NHTSA ODI #8016347

2001 model year · Mileage unknown · Aug 8, 2002
Engine And Engine CoolingEquipmentPower Train

WHEN DRIVING AND APPLYING BRAKES VEHICLE WILL SHAKE AND SHIMMY VERY HARD. CONSUMER BELIEVES THAT ROTORS ARE DEFECTIVE, THE DEALER FOUND THAT THE ROTORS WERE WARPED AND REPLACED THEM UNDER WARRANTY, THERE IS AN ODOR AND HUMMING SOUND COMING FROM THE A/C WHEN TURNING ON THE SYSTEM, THE DELER HAS BEEN UNABLE TO DUPLICATE THE PROBL…

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WHEN DRIVING AND APPLYING BRAKES VEHICLE WILL SHAKE AND SHIMMY VERY HARD. CONSUMER BELIEVES THAT ROTORS ARE DEFECTIVE, THE DEALER FOUND THAT THE ROTORS WERE WARPED AND REPLACED THEM UNDER WARRANTY, THERE IS AN ODOR AND HUMMING SOUND COMING FROM THE A/C WHEN TURNING ON THE SYSTEM, THE DELER HAS BEEN UNABLE TO DUPLICATE THE PROBLEM, THE VEHICLE EXPERIENCED LOW IDLE WHILE IN GEAR, THE DEALER FOUND IT NECESSARY TO FLASH THE PCM, EXHAUST MANIFOLD WAS LOOSE CAUSING IT TO MAKE A RATTLING NOISE.*AK *NLM

NHTSA ODI #8015897

1999 model year · Mileage unknown · Aug 6, 2002
Air BagsElectrical SystemEngine And Engine Cooling

THE VEHICLE EXHIBITS A SAG/HESITATION FOLLOWING A PARTIAL COOL DOWN RESTART, POSSIBLY AN OXYGEN SENSOR PROBLEM. WHILE MAKING HARD LEFT TURNS AT SLOW SPEEDS (SUCH AS A U-TURN), THE AIRBAG WARNING LIGHT ILLUMINATES AND A AUDIBLE CHIME IS ACTIVATED. THE RIGHT SIDE BRAKE LIGHT ASSEMBLY IS BURNT (INTERNALLY) DUE TO SOME KIND OF ELECT…

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THE VEHICLE EXHIBITS A SAG/HESITATION FOLLOWING A PARTIAL COOL DOWN RESTART, POSSIBLY AN OXYGEN SENSOR PROBLEM. WHILE MAKING HARD LEFT TURNS AT SLOW SPEEDS (SUCH AS A U-TURN), THE AIRBAG WARNING LIGHT ILLUMINATES AND A AUDIBLE CHIME IS ACTIVATED. THE RIGHT SIDE BRAKE LIGHT ASSEMBLY IS BURNT (INTERNALLY) DUE TO SOME KIND OF ELECTRICAL OVERHEATING. THE VEHICLE SHIFTS HARD, MISSES SHIFTS, SHIFTS REPEATEDLY AT CONSTANT SPEED AND ON A LEVEL GRADE. THE REAR DIFFERANTIAL "BUMPS" VERY HARD WITHIN 3-20 SECONDS OF COMING TO A COMPLETE STOP. AN IMMOVABLE "FOG" HAS DEVELOPED ON THE LENSES OF THE COMPOSITE HEADLIGHT ASSEMBLIES.*AK

NHTSA ODI #765285

2000 model year · Mileage unknown · Aug 1, 2002
Power TrainService Brakes, Hydraulic

BRAKES - ROTORS WARP ABOUT EVERY 9 TO 12,000 MILES. THE ROTORS HAVE BEEN TURNED 3 TIMES AND ARE NOW IN NEED AGAIN. TRANSMISSION - THE OVERDRIVE SLIPS AS IT ENGAGES. TACHOMETER SHOWS THE ENGINE SPEED INCREASING AS THE OD ENGAGES, THAN DROPS AS IT FINALLY FULLY ENGAGES.

NHTSA ODI #765033

1995 model year · Mileage unknown · Jul 31, 2002
Power Train

CONSUMER STATES VEHICLE JUMPED OUT OF PARK POSITION BACKING INTO ANOTHER VEHICLE CAUSING DAMAGE. THIS HAPPENDED TWO TIMES. MANUFACTURER NOTIFIED. *TT

NHTSA ODI #567011

1996 model year · Mileage unknown · Jul 28, 2002
Power TrainVehicle Speed Control

WIIL NOT NOT MOVE IN REVERSE. MOVES FORWARD IN NREUTRAL. LUNGES FOWARD WHEN PUT INTO PARK.*AK

NHTSA ODI #764846

1999 model year · Mileage unknown · Jul 23, 2002
Power TrainService Brakes, HydraulicCrashInjury

WHILE TRAVELING DOWN A MOUNTAIN ROAD, GAINING SPEED, PUT CAR INTO 2ND GEAR IN ORDER TO SLOW DOWN AND NOT OVER-USE THE BRAKES...CAR SUDDENLY BOLTED BACK AND BRAKES LOCKED UP AND BECAME UNRESPONSIVE. I STEERED OUT OF HITTING THE MEDIAN , (IT WAS A WINDY MOUNTAIN ROAD), BUT HIT THE BACK OF A TRACTOR TRAILOR.. I WAS THEN HIT FROM …

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WHILE TRAVELING DOWN A MOUNTAIN ROAD, GAINING SPEED, PUT CAR INTO 2ND GEAR IN ORDER TO SLOW DOWN AND NOT OVER-USE THE BRAKES...CAR SUDDENLY BOLTED BACK AND BRAKES LOCKED UP AND BECAME UNRESPONSIVE. I STEERED OUT OF HITTING THE MEDIAN , (IT WAS A WINDY MOUNTAIN ROAD), BUT HIT THE BACK OF A TRACTOR TRAILOR.. I WAS THEN HIT FROM BEHIND BY ANOTHER TRACTOR-TRAILOR AND PROJECTED FOWARED. I WAS ABLE TO MANUEVER OVER TO SHOULDER OF ROAD. PLACED CAR'S TRANSMISSION IN PARK..BUT IT CONTINUED TO MOVE FOWARD !!! I HAD MINOR ACHES AND PAINS, CAR SUSTAINED AT LEAST $9500 WORTH OF COLLISSION DAMAGE. TOLD REPAIR TO CHECK BRAKES AND TRANSMISSION...THEY SAID EVERYTHING OK.. I DID NOT DO ANYTHING UNUSUAL IN THIS DRIVING EXPERIENCE. I AM EXTREMELY FEARFUL OF THE VEHICLE. IT IS STILL IN SHOP WAITING FOR FINAL ESTIMATE. I WANT TO MAKE SURE THE FRAME AND BRAKES AND TRANSMISSION ARE OK BEFORE I CONSIDER USING VEHICLE AGAIN. MY CONFIDENCE IS LOST. CAN JEEP RESPOND AND LET ME KNOW WHY THIS HAPPENED...WILL THEY BUY-BACK ? IT IS ON EXTENDED WARRANTY TIL JANUARY 2003 OR 43,000 MILES. I JUST PURCHASED IN JANUARY OF 2002. I NOW REALIZE MANY JEEPS HAVE MANY PROBLEMS.*AK

NHTSA ODI #764641

1996 model year · Mileage unknown · Jul 23, 2002
Power TrainCrash

THE VEHICLE SLIPPED OUT OF PARK AND INTO REVERSE WHILE RUNNING. I HAD BOTH FEET ON THE GROOUND AND WAS MOVING TO THE REAR DOOR WHEN IT BEGAN TO MOVE. I COUKD NOT SHUT THE CAR OFF AS I HAD MY SIX WEEK OLD IN THE CAR WITH ME AND THE TEMPERATURES WERE IN THE 1990'S.*AK

NHTSA ODI #764649

2001 model year · Mileage unknown · Jul 19, 2002
Exterior LightingPower TrainService Brakes, Hydraulic

WHILE DRIVING, CONSUMER APPLIED BRAKES AND WITHOUT WARNING BRAKES MADE NOISE AND SKIPPED. *AK THE REAR AXLE SEALS WERE LEAKING. LEFT FRONT OUT SIDE MIRROR WAS LOOSE. THE RIGHT FRONT WINDOW RATTLES. THE REAR HATCH LIGHT WAS INOPERABLE. THE BRAKES PULSATED AND THE ROTORS WERE RESURFACED. SHOCK ABSORBER MAKES NOISE WHEN HITTING S…

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WHILE DRIVING, CONSUMER APPLIED BRAKES AND WITHOUT WARNING BRAKES MADE NOISE AND SKIPPED. *AK THE REAR AXLE SEALS WERE LEAKING. LEFT FRONT OUT SIDE MIRROR WAS LOOSE. THE RIGHT FRONT WINDOW RATTLES. THE REAR HATCH LIGHT WAS INOPERABLE. THE BRAKES PULSATED AND THE ROTORS WERE RESURFACED. SHOCK ABSORBER MAKES NOISE WHEN HITTING SLIGHT BUMPS. THE VEHICLE RATTLE IN FRONT AT 15-30 MPH. THE FRONT TIRES WERE WEARING OUT DUE TO MISALIGNMENT. THE VEHICLE WAS HARD TO START AFTER WARMED UP. *YH

NHTSA ODI #8014323

1999 model year · Mileage unknown · Jul 18, 2002
Power Train

WHILE DRIVING ON HIGHWAY VEHICLE STARTED MAKING A SCREECHING SOUND, VEHICLE JUST STARTED TO STALL. WHEN DRIVER PULLED OVER, TRANSMISSION QUIT. DRIVER PLACED CAR IN PARK, STEPPED OUT, AND VEHICLE STARTED TO ROLL BACKWARDS DUE TO TRANSFER CASE LOCKING UP. DEALER SAID TRANSFER CASE AND TRANSMISSION NEEDED TO BE REPLACED.…

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WHILE DRIVING ON HIGHWAY VEHICLE STARTED MAKING A SCREECHING SOUND, VEHICLE JUST STARTED TO STALL. WHEN DRIVER PULLED OVER, TRANSMISSION QUIT. DRIVER PLACED CAR IN PARK, STEPPED OUT, AND VEHICLE STARTED TO ROLL BACKWARDS DUE TO TRANSFER CASE LOCKING UP. DEALER SAID TRANSFER CASE AND TRANSMISSION NEEDED TO BE REPLACED.*AK

NHTSA ODI #8014214

Related Official recalls

4

18V280000 · Power Train:automatic Transmission

May 1, 2018

Chrysler (FCA US LLC) is recalling certain 2018 Dodge Charger, Durango and Challenger, Jeep Grand Cherokee and Wrangler, Chrysler 300, and RAM 1500 vehicles. An incorrect transmission park lock rod may have been installed in the transmission.

Consequence & remedy

Consequence: If the incorrect park lock rod is installed, the transmission may not shift into 'PARK' and keep the vehicle from moving, increasing the risk of unintended vehicle movement and the risk of a crash.

Remedy: Chrysler will notify owners, and dealers will install the correct park lock rod, free of charge. The recall began June 28, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U43.

16V240000 · Power Train:automatic Transmission:control Module (tcm/pcm/tecm)

Apr 25, 2016

Chrysler (FCA US LLC) is recalling certain model year 2012-2014 Dodge Charger and Chrysler 300 vehicles manufactured February 15, 2011, to November 27, 2014, and 2014-2015 Jeep Grand Cherokee vehicles manufactured July 16, 2012, to December 22, 2015. The affected vehicles, equipped with an eight-speed automatic transmission and a monostable gear selector, may not adequately warn the driver when driver's door is opened and the vehicle is not in PARK, allowing them to exit the vehicle while the vehicle is still in gear.

Consequence & remedy

Consequence: Drivers thinking that their vehicle's transmission is in the PARK position may be struck by the vehicle and injured if they attempt to get out of the vehicle while the engine is running and the parking brake is not engaged.

Remedy: Chrysler will notify owners, and dealers will update the vehicle software to mitigate the risk of vehicle rollaway, free of charge. The recall began on June 24, 2016. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is S27. Note: On October 19, 2016 Chrysler identified some previously repaired vehicles did not receive the complete software updates. Chrysler will renotify the affected owners, and dealers will update the software again.

05V396000 · Power Train:automatic Transmission

Sep 14, 2005

ON CERTAIN SPORT UTILITY VEHICLES EQUIPPED WITH 3.7L ENGINES AND NAG1 AUTOMATIC TRANSMISSIONS, THE AIR CONDITIONER EVAPORATOR CONDENSATE WATER MAY ENTER THE TRANSMISSION AT THE FILL TUBE GROMMET SEAL. THIS CAN RESULT IN SHUDDER DURING TORQUE CONVERTER CLUTCH ENGAGEMENT.

Consequence & remedy

Consequence: IT CAN LEAD TO INCREASED TRANSMISSION OPERATING TEMPERATURES, BOILING OF THE WATER, AND A SUBSEQUENT PURGING OF TRANSMISSION FLUID INTO THE ENGINE COMPARTMENT POTENTIALLY RESULTING IN AN UNDERHOOD FIRE.

Remedy: DEALERS WILL INSPECT THE TRANSMISSION FOR LEAKAGE AT THE FILL TUBE GROMMET SEAL. IF NO LEAK IS DETECTED, A NEW FILL TUBE GROMMET SEAL AND WATER DEFLECTOR SHIELD WILL BE INSTALLED, AND PROPER ALIGNMENT OF THE FILL TUBE VERIFIED. IF THE PRESENCE OF A LEAK IS DETECTED, THE VEHICLE WILL BE EVALUATED FOR SHUDDER DURING TORQUE CONVERTER ENGAGEMENT. IF NO SHUDDER IS DETECTED, THE TRANSMISSION WILL BE TRIPLE FLUSHED, AND NEW FILL TUBE GROMMET SEAL AND WATER DEFLECTOR WILL BE INSTALLED AND PROPER ALIGNMENT OF THE FILL TUBE VERIFIED. IF SHUDDER IS DETECTED, THE TORQUE CONVERTER WILL BE REPLACED, A NEW FILL TUBE GROMMET SEAL AND WATER DEFLECTOR WILL BE INSTALLED, AND PROPER ALIGNMENT OF THE FILL TUBE VERIFIED. THE RECALL BEGAN ON OCTOBER 31, 2005. OWNERS MAY CONTACT DAIMLERCHRYSLER AT 1-800-853-1403.

02V053000 · Power Train:automatic Transmission:lever And Linkage:floor Shift

Feb 15, 2002

ON CERTAIN SPORT UTILITY VEHICLES, IF A DRIVER HAS NOT PLACED THE SHIFTER LEVER FULLY INTO THE "PARK" POSITION AND LEAVES THE VEHICLE RUNNING, THE VEHICLE MAY UNEXPECTEDLY MOVE REARWARD AFTER SEEMING TO BE STABLE.

Consequence & remedy

Consequence: INADVERTENT MOVEMENT OF THE VEHICLE COULD RESULT IN A CRASH.

Remedy: DEALERS WILL INSTALL A SECONDARY DETENT SYSTEM TO THE FLOOR SHIFTER ASSEMBLY. DAIMLERCHRYSLER SENT INTERIM NOTICES TO OWNERS CONCERNING THIS PROBLEM ON MARCH 22, 2002. OWNER NOTIFICATION BEGAN SEPTEMBER 23, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT DAIMLERCHRYSLER AT 1-800-853-1403.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

Related NHTSA investigations

2

EA16002 · Vehicle Rollaway, Engine On

Opened Feb 3, 2016 · Closed Jun 24, 2016

Status: closed (inferred from source dates) · Power Train:automatic Transmission:gear Position Indication (prndl)

On April 22, 2016, Fiat Chrysler Automotive US LLC, (FCA) submitted a Defect Information Report (DIR) to NHTSA regarding a defect that could result in unattended vehicle rollaway with the engine running in approximately 811,586 model year (MY) 2012 to 2014 Dodge Charger and Chrysler 300 vehicles and MY 2014 to 2015 Jeep Grand Cherokee vehicles equipped with 8-speed transmissions and a monostable gear selector (NHTSA Recall #16V-240, FCA Recall #S27). According to FCA's DIR, The existing strategies built into these vehicles to deter drivers from exiting the vehicle after failing to put the transmission into PARK have not stopped some from doing so. Drivers erroneously concluding that their vehicle's transmission is in the PARK position may be struck by the vehicle and injured if they attempt to get out of the vehicle while the engine is running and the parking brake is not engaged.The vehicles recalled by FCA are equipped with Monostable electronic (shift-by-wire) gearshift assemblies supplied by ZF Group (see Figure 1).The subject Monostable shifter has a single neutral position that it snaps back to when the driver releases the shift knob.Although the Monostable gearshift has the familiar appearance of a conventional console mechanical gearshift assembly, it has an unfamiliar movement that does not provide the tactile or visual feedback that drivers are accustomed to receiving from conventional shifters.Consequently, the driver must take additional time to verify that the desired gear position was achieved by checking the PRNDL display on the shift knob or the Electronic Vehicle Information Center (EVIC) display.

Additional source detail variants (2)

Power Train:automatic Transmission:gear Position Indication (prndl)

On April 22, 2016, Fiat Chrysler Automotive US LLC, (FCA) submitted a Defect Information Report (DIR) to NHTSA regarding a defect that could result in unattended vehicle rollaway with the engine running in approximately 811,586 model year (MY) 2012 to 2014 Dodge Charger and Chrysler 300 vehicles and MY 2014 to 2015 Jeep Grand Cherokee vehicles equipped with 8-speed transmissions and a monostable gear selector (NHTSA Recall #16V-240, FCA Recall #S27). According to FCA's DIR, The existing strategies built into these vehicles to deter drivers from exiting the vehicle after failing to put the transmission into PARK have not stopped some from doing so. Drivers erroneously concluding that their vehicle's transmission is in the PARK position may be struck by the vehicle and injured if they attempt to get out of the vehicle while the engine is running and the parking brake is not engaged.The vehicles recalled by FCA are equipped with Monostable electronic (shift-by-wire) gearshift assemblies supplied by ZF Group (see Figure 1).The subject Monostable shifter has a single neutral position that it snaps back to when the driver releases the shift knob.Although the Monostable gearshift has the familiar appearance of a conventional console mechanical gearshift assembly, it has an unfamiliar movement that does not provide the tactile or visual feedback that drivers are accustomed to receiving from conventional shifters.Consequently, the driver must take additional time to verify that the desired gear position was achieved by checking the PRNDL display on the shift knob or the Electronic Vehicle Information Center (EVIC) display.

Power Train:automatic Transmission:gear Position Indication (prndl)

On April 22, 2016, Fiat Chrysler Automotive US LLC, (FCA) submitted a Defect Information Report (DIR) to NHTSA regarding a defect that could result in unattended vehicle rollaway with the engine running in approximately 811,586 model year (MY) 2012 to 2014 Dodge Charger and Chrysler 300 vehicles and MY 2014 to 2015 Jeep Grand Cherokee vehicles equipped with 8-speed transmissions and a monostable gear selector (NHTSA Recall #16V-240, FCA Recall #S27). According to FCA's DIR, The existing strategies built into these vehicles to deter drivers from exiting the vehicle after failing to put the transmission into PARK have not stopped some from doing so. Drivers erroneously concluding that their vehicle's transmission is in the PARK position may be struck by the vehicle and injured if they attempt to get out of the vehicle while the engine is running and the parking brake is not engaged.The vehicles recalled by FCA are equipped with Monostable electronic (shift-by-wire) gearshift assemblies supplied by ZF Group (see Figure 1).The subject Monostable shifter has a single neutral position that it snaps back to when the driver releases the shift knob.Although the Monostable gearshift has the familiar appearance of a conventional console mechanical gearshift assembly, it has an unfamiliar movement that does not provide the tactile or visual feedback that drivers are accustomed to receiving from conventional shifters.Consequently, the driver must take additional time to verify that the desired gear position was achieved by checking the PRNDL display on the shift knob or the Electronic Vehicle Information Center (EVIC) display.

PE15030 · Powered Vehicle Rollaway

Opened Aug 20, 2015 · Closed Feb 5, 2016

Status: closed (inferred from source dates) · Power Train:automatic Transmission; Power Train:automatic Transmission:gear Position Indication (prndl)

The Office of Defects Investigation (ODI) opened Preliminary Evaluation PE15-030 on August 20, 2015,to investigate 14 complaints alleging incidents of rollaway after intended shifts to Park in Model Year (MY) 2014 and 2015 Jeep Grand Cherokees vehicles. The MY 2014-2015 Grand Cherokee vehicles are equipped with Monostable electronic (E-shift) gearshift assemblies supplied by ZF Group (ZF). The E-shift system operates electronically and the gear requested by the driver is transmitted from the shifter via the CAN Bus to the Transmission Control Module which makes the requested shift. The Monostable gearshift does not move into a detent but springs back to a centered/neutral position after the driver selects a gear and releases the shifter. A button on the shift knob must be depressed to shift out of Park, shift out of Neutral, and to shift from Drive to Reverse or Park.The gear selected is shown on a display in the dash and illuminated letters on the shifter. If the driver's door is opened when the gearshift is not in Park, a chime sounds and a message is displayed on the instrument panel to warn the driver.In addition, the engine Start/Stop push-button control logic does not permit normal engine shut-off when the transmission is not in Park. This logic may provide feedback to drivers who attempt to turn the engine off when the transmission is not in Park. However, this function does not protect drivers who intentionally leave the engine running or drivers who do not recognize that the engine is still running.NHTSA testing during PE15-030 indicates that operation of the Monostable shifter is not intuitive and provides poor tactile and visual feedback to the driver, increasing the potential for unintended gear selection.ODI?s analysis of the PE15-030 complaint and field report data identified 306 incidents of vehicle rollaway followingintended shifts to Park in the 2014-2015 Grand Cherokee. These resulted in 117 alleged crashes. Twenty-eight of the crashes reportedly caused injuries, including 3 with a fractured pelvis and 4 others requiring some degree of hospitalization (a ruptured bladder, fractured kneecap, broken ribs, damaged to right leg). Other injuries include reports of a broken nose, facial lacerations requiring stitches, sprained knees, severe bruising, and trauma to legs.An Engineering Analysis (EA16-002) has been opened to assess the scope, frequency, and safety-related consequences of the alleged defect. The Vehicle Owner Questionnaires (VOQs) associated with the closing of this Preliminary Evaluation are:10823099, 10822939, 10822442, 10820488, 10817252, 10810551, 10810051, 10809691, 10809024, 10807839, 10807416, 10794318, 10787947, 10787576, 10785790, 10783597, 10778854, 10775391, 10767488, 10766494, 10763333, 10763284, 10763082, 10762457, 10761498, 10760980, 10760729, 10760702, 10760081, 10759979, 10759669, 10759622, 10759568, 10759548, 10759533, 10759287, 10759278, 10759198, 10759186, 10759157, 10759131, 10759102, 10759082, 10759066, 10759047, 10759046, 10733158, 10730952, 10716526, 10711893, 10683556, 10679497, 10676998, 10668651, 10662619, 10662308, 10631167, 10605865, 10583366, 10567538, 10555901, and 10537653.

Additional source detail variants (2)

Power Train:automatic Transmission

The Office of Defects Investigation (ODI) opened Preliminary Evaluation PE15-030 on August 20, 2015,to investigate 14 complaints alleging incidents of rollaway after intended shifts to Park in Model Year (MY) 2014 and 2015 Jeep Grand Cherokees vehicles. The MY 2014-2015 Grand Cherokee vehicles are equipped with Monostable electronic (E-shift) gearshift assemblies supplied by ZF Group (ZF). The E-shift system operates electronically and the gear requested by the driver is transmitted from the shifter via the CAN Bus to the Transmission Control Module which makes the requested shift. The Monostable gearshift does not move into a detent but springs back to a centered/neutral position after the driver selects a gear and releases the shifter. A button on the shift knob must be depressed to shift out of Park, shift out of Neutral, and to shift from Drive to Reverse or Park.The gear selected is shown on a display in the dash and illuminated letters on the shifter. If the driver's door is opened when the gearshift is not in Park, a chime sounds and a message is displayed on the instrument panel to warn the driver.In addition, the engine Start/Stop push-button control logic does not permit normal engine shut-off when the transmission is not in Park. This logic may provide feedback to drivers who attempt to turn the engine off when the transmission is not in Park. However, this function does not protect drivers who intentionally leave the engine running or drivers who do not recognize that the engine is still running.NHTSA testing during PE15-030 indicates that operation of the Monostable shifter is not intuitive and provides poor tactile and visual feedback to the driver, increasing the potential for unintended gear selection.ODI?s analysis of the PE15-030 complaint and field report data identified 306 incidents of vehicle rollaway followingintended shifts to Park in the 2014-2015 Grand Cherokee. These resulted in 117 alleged crashes. Twenty-eight of the crashes reportedly caused injuries, including 3 with a fractured pelvis and 4 others requiring some degree of hospitalization (a ruptured bladder, fractured kneecap, broken ribs, damaged to right leg). Other injuries include reports of a broken nose, facial lacerations requiring stitches, sprained knees, severe bruising, and trauma to legs.An Engineering Analysis (EA16-002) has been opened to assess the scope, frequency, and safety-related consequences of the alleged defect. The Vehicle Owner Questionnaires (VOQs) associated with the closing of this Preliminary Evaluation are:10823099, 10822939, 10822442, 10820488, 10817252, 10810551, 10810051, 10809691, 10809024, 10807839, 10807416, 10794318, 10787947, 10787576, 10785790, 10783597, 10778854, 10775391, 10767488, 10766494, 10763333, 10763284, 10763082, 10762457, 10761498, 10760980, 10760729, 10760702, 10760081, 10759979, 10759669, 10759622, 10759568, 10759548, 10759533, 10759287, 10759278, 10759198, 10759186, 10759157, 10759131, 10759102, 10759082, 10759066, 10759047, 10759046, 10733158, 10730952, 10716526, 10711893, 10683556, 10679497, 10676998, 10668651, 10662619, 10662308, 10631167, 10605865, 10583366, 10567538, 10555901, and 10537653.

Power Train:automatic Transmission:gear Position Indication (prndl)

The Office of Defects Investigation (ODI) opened Preliminary Evaluation PE15-030 on August 20, 2015,to investigate 14 complaints alleging incidents of rollaway after intended shifts to Park in Model Year (MY) 2014 and 2015 Jeep Grand Cherokees vehicles. The MY 2014-2015 Grand Cherokee vehicles are equipped with Monostable electronic (E-shift) gearshift assemblies supplied by ZF Group (ZF). The E-shift system operates electronically and the gear requested by the driver is transmitted from the shifter via the CAN Bus to the Transmission Control Module which makes the requested shift. The Monostable gearshift does not move into a detent but springs back to a centered/neutral position after the driver selects a gear and releases the shifter. A button on the shift knob must be depressed to shift out of Park, shift out of Neutral, and to shift from Drive to Reverse or Park.The gear selected is shown on a display in the dash and illuminated letters on the shifter. If the driver's door is opened when the gearshift is not in Park, a chime sounds and a message is displayed on the instrument panel to warn the driver.In addition, the engine Start/Stop push-button control logic does not permit normal engine shut-off when the transmission is not in Park. This logic may provide feedback to drivers who attempt to turn the engine off when the transmission is not in Park. However, this function does not protect drivers who intentionally leave the engine running or drivers who do not recognize that the engine is still running.NHTSA testing during PE15-030 indicates that operation of the Monostable shifter is not intuitive and provides poor tactile and visual feedback to the driver, increasing the potential for unintended gear selection.ODI?s analysis of the PE15-030 complaint and field report data identified 306 incidents of vehicle rollaway followingintended shifts to Park in the 2014-2015 Grand Cherokee. These resulted in 117 alleged crashes. Twenty-eight of the crashes reportedly caused injuries, including 3 with a fractured pelvis and 4 others requiring some degree of hospitalization (a ruptured bladder, fractured kneecap, broken ribs, damaged to right leg). Other injuries include reports of a broken nose, facial lacerations requiring stitches, sprained knees, severe bruising, and trauma to legs.An Engineering Analysis (EA16-002) has been opened to assess the scope, frequency, and safety-related consequences of the alleged defect. The Vehicle Owner Questionnaires (VOQs) associated with the closing of this Preliminary Evaluation are:10823099, 10822939, 10822442, 10820488, 10817252, 10810551, 10810051, 10809691, 10809024, 10807839, 10807416, 10794318, 10787947, 10787576, 10785790, 10783597, 10778854, 10775391, 10767488, 10766494, 10763333, 10763284, 10763082, 10762457, 10761498, 10760980, 10760729, 10760702, 10760081, 10759979, 10759669, 10759622, 10759568, 10759548, 10759533, 10759287, 10759278, 10759198, 10759186, 10759157, 10759131, 10759102, 10759082, 10759066, 10759047, 10759046, 10733158, 10730952, 10716526, 10711893, 10683556, 10679497, 10676998, 10668651, 10662619, 10662308, 10631167, 10605865, 10583366, 10567538, 10555901, and 10537653.