Land Rover LR4 2013 — technical service bulletin
Bulletin SSM66677 · NHTSA communication 10206592 · issued Jun 26, 2013
Technical service bulletin
communication type
Engine and Engine Cooling
component
2013
model years
3
vehicle entries
Official summary
5.0L V8 (AJ133) overheating due to incorrect coolant fill - After the engine coolant on a 5.0L V8 AJ133 engine has been partially or fully drained and filled, the customer experiences the engine overheating.
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.