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Service bulletin Q634NAS1

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 id10117017
Published by NHTSA2017-09-08
Manufacturer's numberQ634NAS1
Manufacturer's date2016-11-23
NHTSA componentELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

Situation: An issue has been identified on a limited number of vehicles within the listed Affected Vehicle Range where the Gateway Module (GWM) stays awake and keeps the Controller Area Network (CAN) awake. This constant current drain of three (3) amps causes the battery to go flat within a few days.

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

Electrical system, 12-volt battery

Vehicles listed
LAND ROVER DISCOVERY2016
LAND ROVER DISCOVERY SPORT2015
LAND ROVER RANGE ROVER2015, 2016
LAND ROVER RANGE ROVER SPORT2015, 2016

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
SFCC_APR20_PG192020-05-01. Service bulletin. The Check Engine Lamp is on and there is a lack of power.
SSM742842019-04-08. Service bulletin. Vehicles may exhibit a no start complaint due to a repetitive intermittent flat battery. Initial diagnosis shows no fault found or no measurable quiescent drain.
SSM74232Attachme2019-04-08. Service bulletin. Customer reports: Battery is discharged Vehicle is displaying a low battery warning Terrain Response Switchpack LEDs flashing (see attachment) with engine off
SSM742322019-04-08. Service bulletin. Customer reports: Battery is discharged Vehicle is displaying a low battery warning Terrain Response Switchpack LEDs flashing (see attachment) with engine off
SSM74232Attachme2019-04-01. Service bulletin. Customer reports: Battery is discharged Vehicle is displaying a low battery warning Terrain Response Switchpack LEDs flashing (see attachment) with engine off
SSM742322019-04-01. Service bulletin. Customer reports: Battery is discharged Vehicle is displaying a low battery warning Terrain Response Switchpack LEDs flashing (see attachment) with engine off
SSM74232A2019-03-04. Service bulletin. Customer reports: Battery is discharged Vehicle is displaying a low battery warning Terrain Response Switchpack LEDs flashing (see attachment) with engine off
SSM742322019-03-04. Service bulletin. Customer reports: Battery is discharged Vehicle is displaying a low battery warning Terrain Response Switchpack LEDs flashing (see attachment) with engine off
SFCC_09AUG18_REV2018-11-05. Service bulletin. Battery draining overnight
LTB01080NAS22018-11-05. Service bulletin. The engine MIL (Malfunction Indicator Lamp) may be illuminated. Upon further diagnosis, the Technician may find DTC (Diagnostic Trouble Code) P0089-64 and/or P0089-92 stored in the Powertrain Control Module (PCM).