Ford Escape 2020–2021 — technical service bulletin
Bulletin TSB 21-2129 · NHTSA communication 10191515 · issued Apr 27, 2021
Technical service bulletin
communication type
Power Train
component
2020–2021
model years
2
vehicle entries
Official summary
Some 2020-2021 Escape vehicles equipped with a HF45 transmission may exhibit a rattle noise on cold start up only when the engine is running. This noise may be more prevalent in cold weather conditions, typically at or below 0C (32â  F). This may be due to the software in the secondary on-board diagnostic control module C (SOBDMC). To correct this condition, follow the Service Procedure steps to reprogram the SOBDMC.
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.