# Service bulletin SSM72946

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: 10097198
- Published by NHTSA: 2017\-04\-11
- Manufacturer's number: SSM72946
- Manufacturer's date: 2016\-09\-01
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

"CONCERN: DISCOVERY SPORT \(LC\) 2015 \& 2016MY \& RANGE ROVER EVOQUE \(LV\) 2014MY ONWARDS FITTED WITH 9HP48 9\-SPEED AUTOMATIC TRANSMISSION: RETAILERS REPORTING THESE VEHICLES ARE FLAGGING THE FOLLOWING \(TCM\) TRANSMISSION CONTROL MODULE DTC’S P2545\-86 AND/OR P2546\-86 CODES DURING SDD DTC READ OR ON CUSTOMER CONCERN. SHOULD THERE BE OTHER TRANSMISSION RELATED FAULT CODES IN ADDITION THESE OTHER CODES SHOULD BE INVESTIGATED AND RESOLVED BEFORE PROCEEDING WITH THIS INSTRUCTION. ISSUE: TRANSMISSION CONTROL MODULE \(TCM’S\) ARE BEEN REPLACED UNDER WARRANTY AND ON INVESTIGATION ON RETURNED PARTS HAVE FOUND WITH NO FAULT FOUND."

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Transmission and driveline, Automatic transmission, Transmission control module

## Trouble codes named

P2545, P2546

## Vehicles listed

- 2015 to 2016 LAND ROVER DISCOVERY SPORT
- 2014 to 2016 LAND ROVER RANGE ROVER EVOQUE

## Recalls for the same vehicles and component

- [16V614000](/recalls/nhtsa/16V614000.md), 2016-08-23: POWER TRAIN:AUTOMATIC TRANSMISSION

## Other bulletins for the same vehicles and component

- [Q355NAS1](/bulletins/10204911.md), 2021-12-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. Technical Bulletin: Transmission Control Switch Fails to Rise
- [Q355UPS66132bNAS](/bulletins/10204910.md), 2021-12-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE. Technical Bulletin: Transmission Control Switch Fails to Rise
- [NAS20.03.002](/bulletins/10173519.md), 2020-04-07, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. 9HP Transmission Extended Warranty \- USA
- [SSM74207](/bulletins/10153054.md), 2019-02-19, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). A customer may express a concern that the Malfunction Indicator Lamp \(MIL\) is illuminated, no other symptoms are noted, for example there is no restricted performance/lack of engine power. A technician will find Diagnostic Trouble Code \(DTC\) P0089\-64 stored in the Powertrain Control Module \(PCM\).
- [SSM73959](/bulletins/10148477.md), 2018-11-13, Service bulletin: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Issue: The customer reports reduced performance with P0191\-85 observed in the PCM. This may or may not also illuminate the MIL.
- [SSM73947](/bulletins/10148463.md), 2018-11-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Issue: The customer reports a MIL and P144C\-00 is observed in the PCM.
- [SSM74093](/bulletins/10147476.md), 2018-11-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). The customer reports reduced performance with P0191\-85 observed in the PCM. This may or may not also illuminate the MIL. DTCs P168F\-00, P2178\-00, or P144C\-00 may be stored also.
- [SSM73959.2](/bulletins/10146416.md), 2018-11-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Issue: The customer reports reduced performance with P0191\-85 observed in the PCM. This may or may not also illuminate the MIL. DTCs P168F\-00, P2178\-00, or P144C\-00 may be stored also.
- [SSM73959](/bulletins/10145928.md), 2018-10-22, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Issue: The customer reports reduced performance with P0191\-85 observed in the PCM. This may or may not also illuminate the MIL. DTCs P168F\-00, P2178\-00, or P144C\-00 may be stored also.
- [SGI18\-05](/bulletins/10138657.md), 2018-05-29, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. An issue has been identified on certain vehicles within the listed Affected Vehicle Range where the 'Service Required' message will not appear on the Instrument Cluster \(IC\) if a vehicle has reached its service point and the engine is started normally by pressing the engine START/STOP button with the brake pedal pressed. Turning on the ignition only, by pressing the engine START/STOP button without the brake pedal pressed, will still allow the 'Service Required' warning message to be displayed. In addition, the latest Powertrain Control Module \(PCM\) software has introduced a concern relating to the ability to reset the service message indicator. The latest IC software will rectify these concerns.

JSON: [/v1/bulletins/10097198](/v1/bulletins/10097198)

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