Honda HR-V 2016–2020 — technical service bulletin
Bulletin A21-046 · NHTSA communication 10200408 · issued Aug 11, 2021
Technical service bulletin
communication type
Power Train
component
2016–2020
model years
5
vehicle entries
Official summary
"Service Bulletin - An incorrect value in the PCM may cause a pressure problem in the CVT under certain driving conditions, causing increased surface pressure on the belt leading to a partial or complete breakage as well as possible ring breakage. New PCM software will increase the overall durability of the CVT primary belt within the transmission. This is accomplished by revising operational loads placed on the belt under certain driving conditions. DTC P271E is added so at the early stages of a CVT primary belt failure, the D light will flash, the MIL will come on, and engine power output wi
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.