Mazda CX-30 2019–2021 — technical service bulletin
Bulletin SA-026-21 · NHTSA communication 10190967 · issued Apr 2, 2021
Technical service bulletin
communication type
Visibility
component
2019–2021
model years
5
vehicle entries
Official summary
When the power windows are operated many times without being fully closed, small errors of the window position sensor may accumulate and cause improper operation of the jam-safe function. To reduce the risk of this occurrence, the AUTO function is disabled if the power window is operated 10 consecutive times without being fully closed (turning the ignition OFF and then ON does not reset the counting). If the power window is fully closed before the 10th time, the counting restarts and the AUTO function is not deactivated.
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.