Land Rover Defender 2017–2025 — technical service bulletin
Bulletin TUCC_AUG2025_37 · NHTSA communication 11022472 · issued Aug 15, 2025
Technical service bulletin
communication type
Service Brakes
component
2017–2025
model years
16
vehicle entries
Official summary
When pushing the rear brake caliper pistons back during a brake service, the caliper piston dust boot may become twisted or distorted if a twist method is used to retract the piston.
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
- 2022 Land Rover Range Rover
- 2023 Land Rover Range Rover
- 2024 Land Rover Range Rover
- 2025 Land Rover Range Rover
- 2023 Land Rover Range Rover Sport
- 2024 Land Rover Range Rover Sport
- 2025 Land Rover Range Rover Sport
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.