Mazda CX-5 2019–2021 — technical service bulletin
Bulletin 01-016-21-3853 · NHTSA communication 10206001 · issued Dec 17, 2021
Technical service bulletin
communication type
Electrical System
component
2019–2021
model years
3
vehicle entries
Official summary
Lack of Power When Accelerating in Cold Temperatures: Some customers may complain about lack of power when accelerating in cold temperatures (below 0 degrees F). To avoid slippage, engine power is restricted in cold temperatures, even when the road condition is not slippery. To eliminate this concern, the PCM and TCM control software has been modified to restrict engine power only when tire slippage is detected between the front and rear wheels in cold temperatures. Customers having this concern should have their vehicle repaired using the following repair procedure.
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.