Land Rover Defender 2020–2022 — technical service bulletin
Bulletin N639NAS1 · NHTSA communication 10204094 · issued Nov 18, 2021
Technical service bulletin
communication type
Electrical System
component
2020–2022
model years
11
vehicle entries
Official summary
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 conne
Vehicles covered
- 2020 Land Rover Defender
- 2021 Land Rover Defender
- 2022 Land Rover Defender
- 2021 Land Rover Discovery
- 2022 Land Rover Discovery
- 2021 Land Rover Discovery Sport
- 2022 Land Rover Discovery Sport
- 2021 Land Rover Range Rover Evoque
- 2022 Land Rover Range Rover Evoque
- 2021 Land Rover Range Rover Velar
- 2022 Land Rover Range Rover Velar
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.