Land Rover Range Rover 2023 — technical service bulletin
Bulletin Range Rover_D011 02-20-20 · NHTSA communication 11029846 · issued Feb 20, 2026
Technical service bulletin
communication type
Engine
component
2023
model years
2
vehicle entries
Official summary
Engine coolant may leak from the coolant bypass hose assembly. The leakage is in the form of a weep, but forms into a more substantial leak over time.
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.