Honda Accord 2023 — technical service bulletin
Bulletin A23-056 · NHTSA communication 10239504 · issued Jul 14, 2023
Technical service bulletin
communication type
Electrical System
component
2023
model years
1
vehicle entries
Official summary
Service Bulletin - The telematics control unit has a parasitic draw that causes a dead 12 volt battery. The telematics control unit failed to properly complete the provisioning process. This causes the unit to stay active in a reboot loop, causing a drain of the 12 volt battery.
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.