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

Bulletins, newest first
SSM76493 - 25SEP262026-10-07. Other. STRUCTURE:BODY. Accessory Wheel Arch Protection - Gaps Present Between Protection And Vehicle Body
SSM76492 - 20AUG262026-09-08. Other. UNKNOWN OR OTHER. TCU Activation Failure And InControl App Inoperative After Software Update
SSM76487 - 20AUG262026-09-08. Other. UNKNOWN OR OTHER. Air Conditioning Inoperative / Intermittent Operation
E002 - 20JUL262026-08-04. Service bulletin. UNKNOWN OR OTHER. Exhaust System Oxygen (O2) Sensors - Extended Warranty
N869 Defender 16JUN262026-07-08. Other. UNKNOWN OR OTHER. Software Over The Air (SOTA) updates are failing to complete. Specifically Vehicle Domain Controller (VDC) PIVI and Gateway Module A (GWM). These vehicles have now been stopped from further SOTA attempts and require a wired intervention.
N869 Defender 15MAY262026-06-04. Other. UNKNOWN OR OTHER. Software Over The Air (SOTA) updates are failing to complete. Specifically Vehicle Domain Controller (VDC) PIVI and Gateway Module A (GWM). These vehicles have now been stopped from further SOTA attempts and require a wired intervention.
N811 Defender 15MAY262026-06-04. Other. ELECTRICAL SYSTEM. Door Zone Module - Quiescent Drain
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.
N869 Defender 17APR262026-05-07. Other. UNKNOWN OR OTHER. Software Over The Air (SOTA) updates are failing to complete
N811 Defender 17APR262026-05-07. Other. ELECTRICAL SYSTEM. Door Zone Module - Quiescent Drain
N811 Defender 20MAR262026-04-07. Other. ELECTRICAL SYSTEM. Door Zone Module - Quiescent Drain
TUCC_MAR2026_282026-04-07. Other. UNKNOWN OR OTHER. While driving with satellite maps, sometimes image doesn't load fully and then comes back
TUCC_MAR2026_272026-04-07. Other. UNKNOWN OR OTHER. INCONTROL REMOTE APP WAKE UP TIMER
TUCC_MAR2026_262026-04-07. Other. UNKNOWN OR OTHER. There are several scenarios where the key may be set to a deactivated state.
SSM76411 - 10MAR262026-04-06. Other. ELECTRICAL SYSTEM. Smart Key Deactivated message on instrument cluster and unable to start their vehicle
SSM000028 - 18MAR262026-04-06. Other. UNKNOWN OR OTHER. Wireless Charger - Charging Interruption With iPhone 15 and 16 Devices
Defender_N869 02-20-20262026-03-06. Other. UNKNOWN OR OTHER. Software Over The Air (SOTA) updates are failing to complete. Specifically Vehicle Domain Controller (VDC) PIVI and Gateway Module A (GWM). These vehicles have now been stopped from further SOTA attempts and require a wired intervention.
Defender_N811 02-20-20262026-03-06. Other. ENGINE. Door Zone Module - Quiescent Drain
TUCC_FEB2026_352026-03-04. Other. ELECTRICAL SYSTEM. There is a concern with the 48Volt charging system(DC/DC) with the vehicle.
TUCC_FEB2026_342026-03-04. Other. ELECTRICAL SYSTEM. There is a concern/fault with the 48Volt MHEV system.
TUCC_FEB2026_332026-03-04. Other. ELECTRICAL SYSTEM. 12V STARTUP BATTERY FLAT - MILD HYBRID ELECTRIC VEHICLE (MHEV)
252602.027 - 12FEB262026-03-04. Service bulletin. ELECTRICAL SYSTEM. Once the vehicle is powered down via ignition cycle, it may not restart depending on remaining residual charge.
TUCC_JAN2026_262026-02-06. Other. UNKNOWN OR OTHER. After vehicle off, the fan continues to run at high speeds.
TUCC_JAN2026_252026-02-06. Other. ELECTRICAL SYSTEM. There is a concern with the 48Volt charging system(DC/DC) with the vehicle.
TUCC_JAN2026_202026-02-06. Other. UNKNOWN OR OTHER. PIVI WIRELESS CARPLAY / ANDROID AUTO CONNECTIVITY

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