WenmarOpen by Wenmar Pro

Service bulletins for the 2020 Land Rover Defender

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.

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

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
SFCC_NOV2020_362020-12-03. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. The engine fan runs excessively.
SFCC_NOV2020_162020-12-02. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. To prevent premature wear, a resulting MIL and a possible no start, all affected vehicles require the replacement of variable camshaft timing (VCT) solenoids on both intake an exhaust.
SFCC_OCT2020_402020-11-06. Service bulletin. POWER TRAIN; ENGINE. The Check Engine Lamp is illuminated.
SFCC_OCT2020_382020-11-06. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE); WHEELS. It feels like the wheels are locking when turning. There is a noise or judder feeling when turning.
SFCC_OCT2020_352020-11-06. Service bulletin. POWER TRAIN. The engine will shut off at low speed approaching a stop and restart immediately by using the engine start button. There is a flashing ‘D’ in the instrument cluster.
SFCC_SEP2020_302020-10-08. Service bulletin. ENGINE; POWER TRAIN. The engine speed will jump up at idle. The engine will shut down at a stop and restart immediately when pressing the start button.
SFCC_SEP2020_292020-10-08. Service bulletin. POWER TRAIN; ENGINE. There is a squeak from the engine at startup or shut down.
SFCC_SEP2020_272020-10-08. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. The engine fan will run sometimes after the engine is shut off.
SFCC_AUG2020_282020-09-08. Service bulletin. POWER TRAIN. Various customer complaints may arise due to usage of lower quality fuel.
SFCC Jul20_33-352020-08-07. Service bulletin. POWER TRAIN; EQUIPMENT:APPLIANCE:AIR CONDITIONER. A customer may report an abnormal noise (like a humming, buzzing, or grinding) when accelerating or decelerating.
SSM74894ATT22020-08-07. Service bulletin. POWER TRAIN. Customers or retailers may report on Defender INGENIUM I6 3.0L Petrol engine versions an abnormal noise when accelerating or decelerating, the noise can be described as 'humming, buzzing or grinding.
SSM74894ATT12020-08-07. Service bulletin. POWER TRAIN. Customers or retailers may report on Defender INGENIUM I6 3.0L Petrol engine versions an abnormal noise when accelerating or decelerating, the noise can be described as 'humming, buzzing or grinding.
SSM748942020-08-07. Service bulletin. POWER TRAIN. Customers or retailers may report on Defender INGENIUM I6 3.0L Petrol engine versions an abnormal noise when accelerating or decelerating, the noise can be described as 'humming, buzzing or grinding.
BIG5_JUN_422020-07-07. Service bulletin. POWER TRAIN. EFFECTIVE JUNE 10TH 2020 . N451 AND H291 CAMPAIGNS HAVE BEEN SUSPENDED. IT HAS BEEN DETERMINED THAT THE NEW SOFTWARE IS MISSING CERTAIN PARTS OF THE CALIBRATION WHICH WILL RESULT IN UNSUCCESSFUL DOWNLOADS.
BIG5_JUN_482020-07-07. Service bulletin. POWER TRAIN. Affected vehicles require a software update to the Powertrain Control Module (PCM) to prevent radiator fans running continuously

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