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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

Bulletins, newest first
SSM755932021-12-07. Service bulletin. ELECTRICAL SYSTEM. ACCESSORY INTEGRATED AIR COMPRESSOR ERROR CODE
SFCC_NOV2021_262021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. The Autonomous Emergency Braking (AEB) warning message is displayed on the instrument cluster (IPC).
SFCC_NOV2021_242021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Improvements/Fixes – Improvement in system stability – Improvements in acoustic reliability / Audio loss – Graphical Improvements – Flickering cluster for media info – Improved Speech support for features like Weather, Nav – Poor Speech recognition – Improvement in stability of personalization features – Introduction of IP oriented Sirius XM functionality – Improvement in Tow Bar functionality – Robustness in SW Performance post SOTA Update – Robustness in firmware updates post SOTA update – Navigation improvements – Improved Wi-Fi / Hotspot Functionality
SFCC_NOV2021_192021-12-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Affected vehicles will require software updates to the TCU & ICCM using Pathfinder to enable future SOTA updates and to install the latest PIVI IP31 software
NAS21.11.0142021-12-07. Service bulletin. ELECTRICAL SYSTEM. A potential issue has been identified on specific vehicles where, in locations where the vehicle has poor or no network connection, vehicles may experience intermittent resetting of the navigation system, following a recent Map Over The Air (MOTA) update. The navigation screen displayed on the Touchscreen will revert to the PIVI home screen and the navigation screen displayed in the instrument cluster panel will revert to displaying the manufacturer's logo. The system will self-recover and navigation will resume, however this fault may re-occur if the vehicle maintains poor or no network connection. No other vehicle features or systems are affected.
N639NAS12021-12-07. Service bulletin. ELECTRICAL SYSTEM. A potential issue has been identified on specific vehicles where, in locations where the vehicle has poor or no network connection, vehicles may experience intermittent resetting of the navigation system, following a recent Map Over The Air (MOTA) update. The navigation screen displayed on the Touchscreen will revert to the PIVI home screen and the navigation screen displayed in the instrument cluster panel will revert to displaying the manufacturer's logo. The system will self-recover and navigation will resume, however this fault may re-occur if the vehicle maintains poor or no network connection. No other vehicle features or systems are affected.
JLRTB02059NAS32021-12-07. Service bulletin. EQUIPMENT. NO AIR FLOW THROUGH FACE VENTS
BIG5NOV21_41B2021-12-07. Service bulletin. ELECTRICAL SYSTEM. IP31 Includes numerous bug fixes, and also activates wireless CarPlay and Android Auto functionality to all PIVI vehicles.
N576NAS12021-11-03. Service bulletin. ENGINE AND ENGINE COOLING. Coolant level sensor loose.
SFCC_OCT2021_442021-11-02. Service bulletin. SEATS. Seat Power Height Adjustment Motor Inoperative
SFCC_OCT2021_432021-11-02. Service bulletin. SEATS. Seat Power Fore/Aft Motor Inoperative
SFCC_OCT2021_422021-11-02. Service bulletin. SEATS. Seat Recliner Motor Inoperative
SFCC_OCT2021_402021-11-02. Service bulletin. EQUIPMENT. Heatshield Contact With Rear Driveshaft
SFCC_OCT2021_392021-11-02. Service bulletin. EQUIPMENT. Roof Opening Panel Inoperative
SFCC_OCT2021_322021-11-02. Service bulletin. ENGINE; POWER TRAIN. Customer symptom of idle speed instability, check engine light illuminated.
SFCC_OCT2021_312021-11-02. Service bulletin. ENGINE; EQUIPMENT. Timing chain replacement VVT Service Part Incorrectly Boxed
SFCC_OCT2021_302021-11-02. Service bulletin. POWER TRAIN. Transmission fluid leaks
SFCC_OCT2021_212021-11-02. Service bulletin. ELECTRICAL SYSTEM. The wireless phone charger is not working with iPhone 12
SFCC_OCT2021_202021-11-02. Service bulletin. ELECTRICAL SYSTEM. AEB warning on Instrument Panel Cluster
SFCC_OCT2021_152021-11-02. Service bulletin. ENGINE AND ENGINE COOLING. COOLANT LEVEL SENSOR LOOSE
SSM754632021-10-07. Service bulletin. POWER TRAIN. MIL ILLUMINATED
SSM75429ATT2021-10-07. Service bulletin. EQUIPMENT; STRUCTURE:BODY:ROOF AND PILLARS. ROOF OPENING PANEL INOPERATIVE
SSM754292021-10-07. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS; EQUIPMENT. ROOF OPENING PANEL INOPERATIVE
SSM75394ATT2021-10-07. Service bulletin. ENGINE; EQUIPMENT. Oil Level Gauge (Dipstick) markings incorrect.
SSM753942021-10-07. Service bulletin. ENGINE; EQUIPMENT. Oil Level Gauge (Dipstick) markings incorrect.

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