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Service bulletins for the 2023 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.

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

By type

By component

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
Turbocharger Coolant Feed2026-10-07. Other. ENGINE. Turbocharger Coolant Feed / Return Leak
D011 Defender 18SEP262026-10-07. Other. ENGINE. Coolant Bypass Hose Leak
D061 Defender 21AUG262026-09-08. Other. ENGINE. Turbocharger Coolant Feed / Return Leak
D061 Defender 17JUL262026-08-05. Other. ENGINE. Turbocharger Coolant Feed / Return Leak
D011 Defender 17JUL262026-08-05. Other. ENGINE. Coolant Bypass Hose Leak
D061 Defender 16JUN262026-07-08. Other. ENGINE. Turbocharger Coolant Feed / Return Leak
D061 Defender 15MAY262026-06-03. Other. ENGINE. Turbocharger Coolant Feed / Return Leak
N892v3 - 01MAY262026-06-03. Service bulletin. ENGINE. Arduous customer drive cycles have been found to accelerate the degradation of engine oil, leading to generation of engine oil sludge deposits in high pressure engine oil galleries of the engine and inside the Continuous Variable Valve Lift (CVVL) unit.
D061 Defender 17APR262026-05-07. Other. ENGINE. Turbocharger Coolant Feed / Return Leak
D011 Defender 17APR262026-05-06. Other. ENGINE. Engine coolant may leak from the coolant bypass hose assembly. The leakage is in the form of a weep, but forms into a more substantial leak over time.
D011 Defender 20MAR262026-04-07. Other. ENGINE. Engine coolant may leak from the coolant bypass hose assembly.
TUCC_MAR2026_182026-04-07. Other. ENGINE. Coolant may leak from the turbocharger coolant hose O-rings, resulting in engine coolant escaping into the engine compartment and subsequent illumination of the low coolant warning indicator on the instrument cluster. Replacement coolant hose O-rings are required.
D061v2 - 20MAR262026-04-06. Service bulletin. ENGINE. Coolant may leak from the turbocharger coolant hose O-rings, resulting in engine coolant escaping into the engine compartment and subsequent illumination of the low coolant warning indicator on the instrument cluster.
Defender_D011 02-20-20262026-03-06. Other. ENGINE. Engine coolant may leak from the coolant bypass hose assembly. The leakage is in the form of a weep, but forms into a more substantial leak over time.
D061 - 12FEB262026-03-04. Service bulletin. ENGINE. Turbocharger Coolant Feed / Return Leak
SSM000017-19DEC252026-01-09. Other. ENGINE. Coolant fan may continue running at high speed after ignition shut-off
Defender_D011_17OCT252025-10-24. Other. ENGINE. Coolant Bypass Hose Leak
TUCC_JUL2025_162025-08-06. Other. ENGINE. The low coolant light may be illuminated/there may be a coolant leak from the engine area.
SSM76317ATT - 28APR252025-05-05. Other. ENGINE. Engine Will Crank, No Start When At Operating Temperature
SSM76317 - 28APR252025-05-05. Other. ENGINE. Engine Will Crank, No Start When At Operating Temperature
TUCC_APR2025_202025-05-05. Other. ENGINE. Engine replacement under warranty.
SFCC_MAR2025_472025-04-07. Other. ENGINE. Low coolant lamp comes on and/or leak of coolant from engine area.
SSM762692025-03-07. Other. ENGINE. Turbocharger Coolant Feed And Return Pipe O-Ring Leak
SSM762552025-03-07. Other. ENGINE. Coolant Loss Through Engine Coolant Expansion Tank Cap
SSM76249ATT32025-03-07. Other. ENGINE. Thermostat Housing Engine Coolant Leak

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