Land Rover Defender 2020–2022 — technical service bulletin
Bulletin SSM75825ATT · NHTSA communication 10226075 · issued Oct 27, 2022
Technical service bulletin
communication type
Equipment
component
2020–2022
model years
21
vehicle entries
Official summary
MHEV DC/DC Converter Squeaking noise from Cabin
Vehicles covered
- 2020 Land Rover Defender
- 2021 Land Rover Defender
- 2022 Land Rover Defender
- 2020 Land Rover Discovery
- 2021 Land Rover Discovery
- 2022 Land Rover Discovery
- 2020 Land Rover Discovery Sport
- 2021 Land Rover Discovery Sport
- 2022 Land Rover Discovery Sport
- 2020 Land Rover Range Rover
- 2021 Land Rover Range Rover
- 2022 Land Rover Range Rover
- 2020 Land Rover Range Rover Evoque
- 2021 Land Rover Range Rover Evoque
- 2022 Land Rover Range Rover Evoque
- 2020 Land Rover Range Rover Sport
- 2021 Land Rover Range Rover Sport
- 2022 Land Rover Range Rover Sport
- 2020 Land Rover Range Rover Velar
- 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.