Land Rover Defender 2019–2025 — technical service bulletin
Bulletin SSM76173 · NHTSA communication 11007423 · issued Aug 30, 2024
Technical service bulletin
communication type
Electrical System
component
2019–2025
model years
36
vehicle entries
Official summary
MHEV DCDC internal failure with warning message
Vehicles covered
- 2020 Land Rover Defender
- 2021 Land Rover Defender
- 2022 Land Rover Defender
- 2023 Land Rover Defender
- 2024 Land Rover Defender
- 2025 Land Rover Defender
- 2020 Land Rover Discovery
- 2021 Land Rover Discovery
- 2022 Land Rover Discovery
- 2023 Land Rover Discovery
- 2024 Land Rover Discovery
- 2025 Land Rover Discovery
- 2019 Land Rover Discovery Sport
- 2020 Land Rover Discovery Sport
- 2021 Land Rover Discovery Sport
- 2022 Land Rover Discovery Sport
- 2023 Land Rover Discovery Sport
- 2024 Land Rover Discovery Sport
- 2025 Land Rover Discovery Sport
- 2022 Land Rover Range Rover
- 2023 Land Rover Range Rover
- 2024 Land Rover Range Rover
- 2019 Land Rover Range Rover Evoque
- 2020 Land Rover Range Rover Evoque
- 2021 Land Rover Range Rover Evoque
- 2022 Land Rover Range Rover Evoque
- 2023 Land Rover Range Rover Evoque
- 2024 Land Rover Range Rover Evoque
- 2023 Land Rover Range Rover Sport
- 2024 Land Rover Range Rover Sport
- 2020 Land Rover Range Rover Velar
- 2021 Land Rover Range Rover Velar
- 2022 Land Rover Range Rover Velar
- 2023 Land Rover Range Rover Velar
- 2024 Land Rover Range Rover Velar
- 2025 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.