Acura RDX 2019–2026 — technical service bulletin
Bulletin B25-049 · NHTSA communication 11023274 · issued Sep 17, 2025
Technical service bulletin
communication type
Engine
component
2019–2026
model years
8
vehicle entries
Official summary
Service Bulletin - Oil leak at the cam chain tensioner inspection cover due to and insufficient sealant adhesion on the inspection cover.
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.