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Service bulletin ONL6MT6M9061721

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10198210
Published by NHTSA2021-06-22
Manufacturer's numberONL6MT6M9061721
Manufacturer's date2021-06-17
NHTSA componentPOWER TRAIN; ENGINE AND ENGINE COOLING

NHTSA's summary

Owner Notification Letter - Honda is conducting a product update to your 2016-20 HR-V. The current continuously variable transmission (CVT) software does not properly monitor internal fluid pressure and detect early CVT belt failure. This can possibly cause the vehicle not to move when accelerating. Honda is providing a product update with new CVT software to fix this issue.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Transmission and driveline

Vehicles listed
HONDA HR-V2016, 2017, 2018, 2019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
A21-0472025-03-05. Service bulletin. Service Bulletin - Due to the possibility of early deterioration of the Continuous Variable Transmission (CVT) drive belt, American Honda is extending the warranty coverage on these CVT models to 7 years from the original date of purchase or 150,000 miles, whichever comes first.
A23110A2023-11-16. Service bulletin. Service News - Some customers have complained of fluid leaking from the rear differential after it has been serviced due to over-torqueing of the drain plugs during servicing.
A21-0472023-05-12. Service bulletin. Service Bulletin - Due to the possibility of early deterioration of the Continuous Variable Transmission (CVT) drive belt, American Honda is extending the warranty coverage on these CVT models to 7 years from the original date of purchase or 150,000 miles, whichever comes first.
PUD - 2016-20 HR2022-05-06. Service bulletin. "Customer letter - Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle. The current continuously variable transmission (CVT) software does not properly monitor internal fluid pressure and detect early CVT belt failure. This can possibly cause the vehicle not to move when accelerating. Honda is providing a product update with new CVT software to fix this issue."
A21-0472021-12-22. Service bulletin. Service Bulletin - Due to the possibility of early deterioration of the Continuous Variable Transmission (CVT) drive belt, American Honda is extending the warranty coverage on these CVT models to 7 years from the original date of purchase or 150,000 miles, whichever comes first. If the PCM software was previously updated in service bulletin 21-046, Product Update: 2016-20 HR-V Software Update and CVT Inspection, the warranty extension applies, since the CVT primary drive belt is now a OBD-monitored part due to the addition of DTC P271E.
A21-0472021-08-17. Service bulletin. "Service Bulletin - Due to the possibility of early deterioration of the Continuous Variable Transmission (CVT) drive belt, American Honda is extending the warranty coverage on these CVT models to 7 years from the original date of purchase or 150,000 miles, whichever comes first. If the PCM software was previously updated in service bulletin 21-046, Product Update: 2016-20 HR-V Software Update and CVT Inspection, the warranty extension applies, since the CVT primary drive belt is now a OBD-monitored part due to the addition of DTC P271E."
A21-0462021-08-17. Service bulletin. "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 will be reduced. This will lessen the chances of an unexpected, sudden loss of acceleration and allow the customer an opportunity to get the vehicle to a Honda dealer."
A21-0472021-06-10. Service bulletin. Service Bulletin - Due to the possibility of early deterioration of the Continuous Variable Transmission (CVT) drive belt, American Honda is extending the warranty coverage on these CVT models to 7 years from the original date of purchase or 150,000 miles, whichever comes first. If the PCM software was previously updated in service bulletin 21-046, Product Update: 2016-20 HR-V Software Update and CVT Inspection, the warranty extension applies, since the CVT primary drive belt is now a OBD-monitored part due to the addition of DTC P271E.
A21-0462021-06-10. Service bulletin. 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 will be reduced. This will lessen the chances of an unexpected, sudden loss of acceleration and allow the customer an opportunity to get the vehicle to a Honda dealer
ABOM042720212021-05-05. Service bulletin. Dealer Message - Today, April 27, 2021, American Honda is announcing a product update and warranty extension for certain 2016-2020 HR-V vehicles to address incorrect CVT operation which may cause vehicle noise, illumination of the MIL, and/or loss of motive force in extremely rare situations. American Honda is extending the warranty coverage on these transmissions to 7 years from the original date of purchase or 150,000 miles, whichever comes first. Refer to your eResponsibility report or do an iN VIN status inquiry to determine which units in your inventory are affected.