# Service bulletin 21\-016\-15 REVA

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: 10148923
- Published by NHTSA: 2018\-11\-26
- Manufacturer's number: 21\-016\-15 REVA
- Manufacturer's date: 2015\-05\-22
- NHTSA component: POWER TRAIN

## 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. ? 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-10148923-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2015/MC-10148923-0001.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P061B, P1DAD, P1DAF, U0401, U1424

## Vehicles listed

- 2015 JEEP GRAND CHEROKEE

## Recalls for the same vehicles and component

- [2016184](/recalls/tc/2016184.md), 2016-04-26: Powertrain
- [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

- [S2623000023](/bulletins/11031337.md), 2026-04-15, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. Power Liftgate Inoperative.
- [S2621000003 REV.A](/bulletins/11030138.md), 2026-03-18, Service bulletin: POWER TRAIN. The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75\-PHEV, 8HP75\-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
- [101232](/bulletins/11010205.md), 2024-11-07, Service bulletin: POWER TRAIN. Plate \- Planetary
- [2104014](/bulletins/10232024.md), 2023-02-21, Service bulletin: POWER TRAIN. 8HP70 Transmission Shift Enhancements
- [2103914](/bulletins/10232023.md), 2023-02-21, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Transmission Shift Enhancements
- [2103814](/bulletins/10232022.md), 2023-02-21, Service bulletin: POWER TRAIN. 8HP70 SRT 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
- [1806314](/bulletins/10232000.md), 2023-02-21, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. 5.7L Powertrain Diagnostic And System Improvements
- [1807414](/bulletins/10229914.md), 2023-01-17, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. 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.
- [W41](/bulletins/10229318.md), 2023-01-09, Service bulletin: POWER TRAIN. Customer Satisfaction Notification W41 Reprogram Powertrain Control Module

JSON: [/v1/bulletins/10148923](/v1/bulletins/10148923)

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