IN VERY COLD WEATHER VEHICLE SHIFTS VERY HARD, RPMS GO UP TO 3000 AND IT TAKES 15-20 MINUTES BEFORE TRANSMISSION SHIFTS SMOOTHLY. *AK
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
YearTopic reportsRecallsInvestigations
20182
10320153
9820144
181020132
9620121
10720113
66200813
40200740
52200628
42200581
31200432
84200320
44200234
107200184
442000124
651999289
451998359
471997188
571996229
681995211
411199492
312199379
71719921
06Recall 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 reportsWHILE VEHICLE WAS IN PARK AND IDLING, IT STARTED ROLLING BACKWARDS AND KNOCKED OWNER TO THE GROUND, ROLLING OVER THE BOTTOM PORTION OF HER LEFT CALF MUSCLE AND CAUSING SEVERAL BRUISES, VEHICLE ROLLED ACROSS A SECTION OF THE HIGHWAY, AND WAS STOPPED WHEN IT CRASHED INTO A GUARDRAIL, DEALERSHIP WAS IN POSSESSION OF VEHICLE, BUT …
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WHILE VEHICLE WAS IN PARK AND IDLING, IT STARTED ROLLING BACKWARDS AND KNOCKED OWNER TO THE GROUND, ROLLING OVER THE BOTTOM PORTION OF HER LEFT CALF MUSCLE AND CAUSING SEVERAL BRUISES, VEHICLE ROLLED ACROSS A SECTION OF THE HIGHWAY, AND WAS STOPPED WHEN IT CRASHED INTO A GUARDRAIL, DEALERSHIP WAS IN POSSESSION OF VEHICLE, BUT HAS NOT INFORMED CONSUMER AS TO ANY FINDINGS, CONSUMER STATED THE PROBLEM HAS SINCE OCCURED ON 2 OTHER OCCASIONS, IN WHICH THE TRANSMISSION LOCKED UP, SINCE THIS INCIDENT THE VEHICLEHAS BEEN LEAKING WHEN IT RAINS ON THE PASSENGER SIDE, MOST LIKELY A RESULT OF THE IMPACT.*JG *NLM
WHILE VEHICLE WAS IDLING IT SHIFTED INTO REVERSE, AND COLLIDED INTO ANOTHER VEHICLE, CONSUMER HAS CONTACTED DEALER.*AK *SLC
I STARTED MY 1999 JEEP GRAND CHEROKEE IN THE MORNING TO WARM UP. THE VEHICLE WAS IN PARK, BUT THE EMERGENCY BRAKE WAS NOT ON. I WENT BACK INSIDE MY HOUSE WHILE MY VEHICLE WAS WARMING. WHEN I WENT BACK OUT TO MY VEHICLE I NOTICED IT WAS NO LONGER IN MY DRIVEWAY. THE VEHICLE WAS IN MY NEIGHBORS YARD! I COULDN'T BELIEVE WHAT H…
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I STARTED MY 1999 JEEP GRAND CHEROKEE IN THE MORNING TO WARM UP. THE VEHICLE WAS IN PARK, BUT THE EMERGENCY BRAKE WAS NOT ON. I WENT BACK INSIDE MY HOUSE WHILE MY VEHICLE WAS WARMING. WHEN I WENT BACK OUT TO MY VEHICLE I NOTICED IT WAS NO LONGER IN MY DRIVEWAY. THE VEHICLE WAS IN MY NEIGHBORS YARD! I COULDN'T BELIEVE WHAT HAD HAPPENED. WHEN I GOT IN THE VEHICLE TO MOVE IT OUT OF THE YARD, IT WAS IN REVERSE. LUCKILY IT DID NOT HAVE ENOUGH POWER TO MAKE IT UP THE BANK OF THE YARD OR IT WOULD HAVE WENT THROUGH MY NEIGHBORS HOUSE. NO ONE WAS INJURED NOR WAS THERE ANY DAMAGE TO THE JEEP. IT JUMPED OUT OF PARK AND SLIPPED INTO REVERSE ON ITS OWN. I AM 100% SURE OF THIS!! I BOUGHT THE CAR BC I WANTED SOMETHING SAFE TO HAUL MY FAMILY AROUND IN...WE JUST HAD OUR FIRST CHILD. NOW, AFTER THIS INCIDENT, I DON'T FEEL SAFE AT ALL. MY WIFE IS EXTREMELY AFRAID OF IT NOW ESPECIALLY SINCE WE HAVE A NEWBORN...NOTHING LIKE MAKING A HUGE CAR PAYMENT FOR SOMETHING THAT DRIVES ITSELF. I DID SOME RESEARCH ON THE NET AND IT APPEARS THAT I AM NOT THE ONLY PERSON WHO HAS EXPERIENCED THIS PROBLEM. THE FIGURES ARE NOW APPROACHING 1000 REPORTS OF THIS TYPE OF INCIDENT. I LIKE THE JEEP, I WISH SOMETHING COULD BE DONE ABOUT THE PROBLEM. IF NOTHING IS DONE BY CHRYSLER IN THE NEXT FEW MONTHS I AM GOING TO SELL IT BC MY WIFE WON'T EVEN RIDE IN THE CAR ANYMORE..ESPECIALLY WITH THE BABY. IF I DO SELL THE VEHICLE, I HOPE IT DOES NOT INJURE OR KILL OF THE NEW BUYER!! CHRYSLER HAS PROBLEM, THEY NEED TO FIX IT BEFORE PEOPLE START GETTING SERIOUSLY HURT.*AK
VEHICLE WAS IN PARK, ENGINE RUNNING/ EMERGENCY BRAKE NOT APPLIED. CONSUMER GOT OUT, AND AT THAT MOMENT VEHICLE SUDDENLY WENT BACKWARD. VEHICLE HIT GARAGE DOOR BEFORE CONSUMER WAS ABLE TO JUMP IN AND SHUT OFF ENGINE. NO INJURIES. DAMAGE TO VEHICLE ABOUT $ 4500.00. *AK
WHILE DRIVING AND UPON TRYING TO GO FROM REGULAR DRIVE TO 4 WHEEL DRIVE, THE TRANSFER CASE MALFUNCTIONS AND WILL NOT GO FROM ONE TO THE OTHER. *AK CONSUMER STATES VEHICLE HAS BEEN IN THE SHOP FOR TRANSMISSION PROBLEMS, GOODYEAR TIRES HAVE BEEN REPLACED 3 TIMES WITHIN 26000 MILES, REAR AXLE SEAL WAS LEAKING OIL, AND HUBS WERE W…
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WHILE DRIVING AND UPON TRYING TO GO FROM REGULAR DRIVE TO 4 WHEEL DRIVE, THE TRANSFER CASE MALFUNCTIONS AND WILL NOT GO FROM ONE TO THE OTHER. *AK CONSUMER STATES VEHICLE HAS BEEN IN THE SHOP FOR TRANSMISSION PROBLEMS, GOODYEAR TIRES HAVE BEEN REPLACED 3 TIMES WITHIN 26000 MILES, REAR AXLE SEAL WAS LEAKING OIL, AND HUBS WERE WARPED. *JB
WHILE DRIVING GEARS AUTOMATICALLY SLIP AND VEHICLE ROLLS BACKWARD. ALSO, VEHICLE STALLS ON INCLINE. PLEASE PROVIDE ANY FURTHER INFORMATION, AND VEHICLE IDENTIFICATION NUMBER.*AK
WHILE DRIVING AND UPON PUTTING GEAR INTO PARK, GEAR SLIPS FROM PARK INTO REVERSE. *AK ON BOTH OCCASIONS, CONSUMER JUMPED BACK INTO THE VEHICLE, APPLIED THE BRAKES, AND NOTED THAT THE SHIFTER WAS IN PARK POSITION, BUT THE LINKAGE DID NOT ENGAGE POSITIVELY INTO PARK. *TT
VEHICLE WAS PARKED WITH ENGINE RUNNING, PARK BRAKE NOT APPLIED, AND SUDDENLY VEHICLE WENT BACKWARDS, CONSUMER WAS ABLE TO JUMP IN AND SHUT ENGINE OFF.*AK
WHILE DRIVING AND UPON PUTTING GEAR INTO PARK IT SLIPPED OUT OF PARK INTO REVERSE AND ROLLED BACKWARD INTO ANOTHER VEHICLE. PLEASE PROVIDE VEHICLE IDENTIFICATION NUMBER, AND ANY FURTHER INFORMATION.*AK
Related Official recalls
418V280000 · 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
2EA16002 · 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.