| Function | Triggered by switch or control unit | Input signal scanned by control unit |
| Turn signals and one-touch signalling | Turn signal switch -E2- | Steering column electronics control unit -J527- |
| Crash flash | Crash sensors | Airbag control unit -J234- |
| Hazard warning flash | Hazard warning lights button -E229- | Onboard supply control unit -J519- |
| Anti-theft alarm flash | Bonnet contact switch -F266- or anti-theft alarm sensor -G578- | Convenience system central control unit -J393- |
| Central locking flash | Remote control key | Convenience system central control unit -J393- |
| Emergency braking flash | Brake pressure sender 1 -G201-, condition: high brake pedal pressure | ABS control unit -J104- |
