Honda Accord 2017–2020 — technical service bulletin
Bulletin A26-091 v1 · NHTSA communication 11035885 · issued Jul 24, 2026
Technical service bulletin
communication type
Forward Collision Avoidance
component
2017–2020
model years
9
vehicle entries
Official summary
Service Bulletin - American Honda has identified a condition that may affect Collision Mitigation Braking System (CMBS) operation. Due to software programming issues of the Advanced Driver Assistance System (ADAS), unexpected vehicle deceleration may occur.
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.