Honda Ridgeline 2017–2019 — technical service bulletin
Bulletin A23-074 · NHTSA communication 10241165 · issued Aug 15, 2023
Technical service bulletin
communication type
Power Train
component
2017–2019
model years
3
vehicle entries
Official summary
Service Bulletin - Vehicle shows Transmission Temperature Too Hot on the MID with no related DTCs due to ATF deterioration causing high foaming and low viscosity. During extended high load driving ATF will foam and cooler flow rate is reduced.
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.