Mazda CX-30 2021–2022 — technical service bulletin
Bulletin SA-002/22 · NHTSA communication 10206940 · issued Jan 13, 2022
Technical service bulletin
communication type
Equipment
component
2021–2022
model years
3
vehicle entries
Official summary
Some vehicles may have a "Low Battery Risk. Start Vehicle to Charge 12V Battery" warning message in the instrument cluster and a 30 second alarm sound. This is caused by the vehicle's electrical control area network (CAN) entering "Sleep Mode" when the network awake time reaches 30 cumulative minutes without the engine running. The vehicle network starts to wake-up at the moment any side door is opened in order to increase the start-up speed of electrical components and the network awake cumulative time count begins by the customer doing any one of the following wake-up triggers: Open any door
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.