WenmarOpen by Wenmar Pro

Service bulletin SSM74180

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10152035
Published by NHTSA2018-12-17
Manufacturer's numberSSM74180
Manufacturer's date2018-11-29
NHTSA componentPOWER TRAIN

NHTSA's summary

Customer reports "Traction Reduced - 2 Wheel Drive Only? warning message displayed on the Instrument Cluster (IC). One or more of the DTC?s P1889-18, P1889-19, P1889-1F, P188E-11, P188E-12 and P188E-13 will be stored in the TCCM (Transfer Case Control Module).

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Trouble codes named

P1889, P188E

Vehicles listed
LAND ROVER RANGE ROVER VELAR2018, 2019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
N881 Range Rover 18SEP262026-10-07. Other. Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
N881 Range Rover 21AUG262026-09-08. Other. Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
N881 Range Rover 17JUL262026-08-05. Other. Powertrain Control Module (PCM) Software Update
N881 Range Rover 16JUN262026-07-08. Other. Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off
N881 Range Rover 15MAY262026-06-04. Other. Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
N881 Range Rover 17APR262026-05-07. Other. Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
N881 Range Rover 20MAR262026-04-07. Other. The Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
Range Rover_N881 02-20-202026-03-06. Other. The Malfunction Indicator Lamp (MIL) may illuminate if the vehicle is refueled within 15 seconds of turning the engine off.
JLRTB02023NAS3 RESCINDED2025-11-05. Service bulletin. MIL Illuminated.
Range Rover_N881_17OCT252025-10-31. Other. Powertrain Control Module (PCM) Software Update