Land Rover Defender 2020–2026 — technical service bulletin
Bulletin N892v3 - 01MAY26 · NHTSA communication 11033241 · issued May 1, 2026
Technical service bulletin
communication type
Engine
component
2020–2026
model years
31
vehicle entries
Official summary
Arduous customer drive cycles have been found to accelerate the degradation of engine oil, leading to generation of engine oil sludge deposits in high pressure engine oil galleries of the engine and inside the Continuous Variable Valve Lift (CVVL) unit.
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
- 2026 Land Rover Defender
- 2021 Land Rover Discovery
- 2022 Land Rover Discovery
- 2023 Land Rover Discovery
- 2024 Land Rover Discovery
- 2025 Land Rover Discovery
- 2026 Land Rover Discovery
- 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
- 2026 Land Rover Discovery Sport
- 2021 Land Rover Range Rover Evoque
- 2022 Land Rover Range Rover Evoque
- 2023 Land Rover Range Rover Evoque
- 2024 Land Rover Range Rover Evoque
- 2025 Land Rover Range Rover Evoque
- 2026 Land Rover Range Rover Evoque
- 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
- 2026 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.