BMW 535I 2010–2017 — technical service bulletin
Bulletin B630916 · NHTSA communication 10146600 · issued Mar 1, 2017
Technical service bulletin
communication type
Electrical System
component
2010–2017
model years
16
vehicle entries
Official summary
?TAILLIGHT FLICKER WHEN TURN SIGNAL AND BRAKE LIGHT ACTIVE . Taillight flickers when turn signal and brake light are active; see video in this link: tinyurl.com/zmr65st When the following preconditions occur simultaneously: Engine on (idle). Tail light active (switched on). Brake light active (through actuation of the brake pedal). Turn signal active (switched on). Current fluctuations reduce the voltage to the tail light.
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.