Ford C-Max 2017 — technical service bulletin
Bulletin SSM 46410 · NHTSA communication 10095855 · issued Feb 23, 2017
Technical service bulletin
communication type
Equipment
component
2017
model years
3
vehicle entries
Official summary
Some 2017 fusion hev/phev, c-max hev/phev, and mkz hev vehicles may exhibit an illuminated mil with dtc p0071 and/or degraded hvac performance in automatic mode only with an ambient temperature reading of 50 degrees f displayed in the message center. If after performing normal pinpoint test diagnosis, a component failure is not identified, do not continue with further diagnosis or part replacement. Having the vehicle parked and started in a warm enclosed area before being driven into cold temperatures can inadvertently cause these symptoms and dtc. The hvac and message center functions will re
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.