Friday, August 7, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

BMW 1 Series M 2012–2014technical service bulletin

Bulletin 840413 · NHTSA communication 10150135 · issued Mar 1, 2013

Technical service bulletin
communication type
Equipment
component
2012–2014
model years
48
vehicle entries

Official summary

"TCB: Emergency Call Is Disabled. A Check Control message shows ""Emergency call failure."" When the SOS button is pressed, the call is not made by the TCB (Telematics Communication Box). Fault code 0XB7F33F is stored in the TCB. CAUSE TCB application error"

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.