Checking trailer lamps
(Option/accessory)
When connecting a trailer – check that the trailer lamps work before departure.
Checking trailer lamps
Automatic checkingAfter a trailer is connected electrically, it is possible to ensure that the trailer lamps are working via an automatic lamp activation. The function helps the driver check that the trailer lamps are working before starting off.
- When a trailer is connected to the towbar, Perform a trailer lamp check. the message is shown in the driver display.
- Confirm the message by pressing the right-hand steering wheel keypad’s O button.
- The lamp check starts.
- Exit the car to check lamp functionality.
- All trailer lamps start to flash – then the lamps are switched on one at a time.
- Visually check that all lamps available on the trailer are operational.
- After a moment, all lamps on the trailer flash again.
- The check is complete.
If one or more of the trailer’s direction indicators or brake light bulbs is broken, the driver display shows a symbol and a message. Other lights on the trailer must be checked manually by the driver before setting off.
Symbol | Message |
---|---|
| Right trailer turn indicator malfunction Left trailer turn indicator malfunction |
| Trailer brake light malfunction |
If any lamp for the trailer’s direction indicators is broken, the driver display symbol for direction indicators will also flash more quickly than normal.