Land Rover Defender 2017–2025 — technical service bulletin
Bulletin SSM76328 - 21MAY25 · NHTSA communication 11019092 · issued May 21, 2025
Technical service bulletin
communication type
Unknown / Other
component
2017–2025
model years
15
vehicle entries
Official summary
JLR Engineering investigations have identified reports of the Heating Ventilation and Air Conditioning(HVAC) evaporator sensor not operating as expected
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
- 2017 Land Rover Discovery
- 2018 Land Rover Discovery
- 2019 Land Rover Discovery
- 2020 Land Rover Discovery
- 2021 Land Rover Discovery
- 2022 Land Rover Discovery
- 2023 Land Rover Discovery
- 2024 Land Rover Discovery
- 2025 Land Rover Discovery
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.