# Service bulletin 21\-016\-15 REV\-B

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.

- Type: Service bulletin
- NHTSA id: 10151731
- Published by NHTSA: 2018\-12\-17
- Manufacturer's number: 21\-016\-15 REV\-B
- Manufacturer's date: 2015\-10\-06
- NHTSA component: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

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. ? P0887 \- TCM Power Control Circuit High ? P1634 \- TCM Internal Internal Watchdog Performance ? 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 \(set in conjunction with U1424 \- Implausible Engine Torque Signal Received\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2015/MC-10151731-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10151731-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline, Automatic transmission, Transmission control module

## Trouble codes named

P061B, P0887, P1634, P1DAD, P1DAF, U0401, U1424

## Vehicles listed

- 2015 JEEP GRAND CHEROKEE

## Recalls for the same vehicles and component

- [16V240000](/recalls/nhtsa/16V240000.md), 2016-04-25: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## Other bulletins for the same vehicles and component

- [2103914](/bulletins/10232023.md), 2023-02-21, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Transmission Shift Enhancements
- [1806714](/bulletins/10232004.md), 2023-02-21, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN; ELECTRICAL SYSTEM. MIL Illumination, P1CF3 Battery Temperature Sensor Out of Range Low
- [S1709000010](/bulletins/10229031.md), 2023-01-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear \(roller failure\) on one or more cam lobes and that camshaft/lifter replacement is necessary.
- [V51](/bulletins/10228020.md), 2022-12-19, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); UNKNOWN OR OTHER. Customer Satisfaction Notification V51 Reprogram Powertrain Control Module
- [W41](/bulletins/10221748.md), 2022-09-26, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Customer Satisfaction Notification W41 Reprogram Powertrain Control Module
- [2102815](/bulletins/10220462.md), 2022-09-26, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 8HP70 Tranmission shift enhancements.
- [18\-047\-15 REV. A](/bulletins/10216177.md), 2022-07-25, Service bulletin: EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION; BACK OVER PREVENTION; 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 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
- [18\-070\-15](/bulletins/10216152.md), 2022-07-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); EQUIPMENT; ELECTRICAL SYSTEM. Flash: PCM Software 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. ? 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
- [25\-002\-15 REV. A](/bulletins/10216146.md), 2022-07-25, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE. 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\-028\-15](/bulletins/10191433.md), 2021-05-03, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 8HP70 Tranmission shift enhancements.

JSON: [/v1/bulletins/10151731](/v1/bulletins/10151731)

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