BSM Warning Light

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the outer mirror glass. (See OUTER MIRROR GLASS REMOVAL .) (See OUTER MIRROR GLASS INSTALLATION .)
Prepare four dry cell batteries (1.5 V).

Fig 1: Dry Cell Batteries
Courtesy of MAZDA MOTORS CORP.
Connect the four dry cell batteries.
Connect the positive pole of the dry cell battery to outer mirror glass terminal B, and the negative pole to terminal A.

Fig 2: Connecting Four Dry Cell Batteries

Courtesy of MAZDA MOTORS CORP.

If the BSM indicator light does not illuminate, replace the outer mirror glass. (See OUTER MIRROR GLASS REMOVAL .) (See OUTER MIRROR GLASS INSTALLATION .)