WenmarOpen by Wenmar Pro

Service bulletins for the 2021 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.

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

By type

By component

Only bulletins with component: Crankcase ventilation (PCV) are shown. Show all

Bulletins, newest first
SFCC_APR2022_142022-05-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV); POWER TRAIN. AIR LEAK WITHIN CRANKCASE VENTILATION SYSTEM
N6272022-05-05. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). AIR LEAK WITHIN CRANKCASE VENTILATION SYSTEM

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