Land Rover Defender 2024–2025 — technical service bulletin
Bulletin TUCC_JUL2025_40 · NHTSA communication 11021656 · issued Jul 12, 2025
Technical service bulletin
communication type
Power Train
component
2024–2025
model years
10
vehicle entries
Official summary
Coolant Level Low message displayed on the instrument panel cluster.
Vehicles covered
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.