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Service bulletins for the 2018 Land Rover Discovery

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.

887 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission control module are shown. Show all

Bulletins, newest first
SSM73959.22018-11-05. 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.
SSM739592018-10-22. 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.
SSM738472018-07-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL). Issue Customer may complain that ? Gearbox fault is displayed on the Instrument Cluster (IC) Flashing ?D? on the Transmission Control Switch and/or Instrument Cluster (IC) following an ECO Stop/Start event. ONLY DTCs P0715-64 and P0700-02 are stored in the Transmission Control Module (TCM) P0715-64 - Input/Turbine Shaft Speed Sensor "A" Circuit - signal plausibility failure P0700-02 - Transmission Control System (MIL Request) - general signal failure. If there are any other DTCs stored in the TCM they must be investigated and rectified prior to carrying out the instruction detailed in this SSM. Refer to the DTC index on TOPIx ? 100-00 General Information ? Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) NOTE ? The concern detailed in this SSM is applicable to 2017 and 2018 MY vehicles and typically occurs at low mileage (below 2500 miles/4000 kilometres) and affects vehicles fitted with the 8HP45 or 8HP70 automatic transmission.
LTB01156NAS12018-05-29. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE. The engine Malfunction Indicator Lamp (MIL) may be illuminated on the Instrument Cluster (IC) with Diagnostic Trouble Code (DTC) P132B-77 stored in the Powertrain Control Module (PCM).

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.