Acura RDX 2021–2022 — technical service bulletin
Bulletin B22-017 · NHTSA communication 10222079 · issued Sep 20, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2022
model years
2
vehicle entries
Official summary
"Service Bulletin - Engine does not auto restart after entering into auto Idle Stop. The Idle Stop criteria was incorrect and allowed Idle Stop to engage when battery health is insufficient."
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.