Volvo XC90 2015-2024 Owners Manual / Starting and driving / Checking trailer lights

Volvo XC90: Starting and driving / Checking trailer lights

When connecting a trailer, make sure that all of the lights on the trailer are functioning before starting to drive.

Trailer turn signals and brake lights

If one or more of the turn signals or brake lights on the trailer is not working, a symbol and message will be displayed in the instrument panel. The other lights on the trailer must be checked manually by the driver before the vehicle is driven.

Volvo XC90. Checking trailer lights

If any of the trailer's turn signal lights is not working, the turn signal symbol in the instrument panel will also flash more quickly than normal.

Trailer rear fog light

When a trailer is connected, the vehicle's rear fog light may not illuminate and rear fog light functionality is instead transferred to the trailer. If this is the case, check to see if the trailer is equipped with a rear fog light before activating the vehicle's fog lights when driving with a trailer to help ensure safe operation.

Checking trailer lights*

Automatic check

When the trailer has been connected to the vehicle's electrical system, its lights can be checked by automatically activating them. This function helps the driver check that the trailer's lights are functioning correctly before starting to drive.

In order to perform this check, the vehicle must be switched off.

  1. When a trailer is connected to the towbar, the message Automatic Trailer Lamp Check will appear in the instrument panel.
  2. Acknowledge the message by pressing the O button on the right-side steering wheel keypad.
    • The light check will begin.
  3. Get out of the vehicle to perform the check.
    • All of the lights on the trailer will begin flashing, and then illuminate separately one at a time.
  4. Visually check that all of the trailer's lights are functioning correctly.
  5. After a short time, all of the trailer's lights will start flashing again.
    • The light check is completed.

Disabling the automatic check

The automatic light check can be disabled in the center display.

  1. Tap Settings in the Top view.
  2. Tap My Car Volvo XC90. Checking trailer lights Lights and Lighting.
  3. Deselect Automatic Trailer Lamp Check.

Manual check

If the automatic check has been disabled, the check can be started manually.

  1. Tap Settings in the Top view.
  2. Tap My Car Volvo XC90. Checking trailer lights Lights and Lighting.
  3. Select Manual Trailer Lamp Check.
    • The light check will begin. Get out of the vehicle to perform the check.

* Option/accessory.

    Trailer Stability Assist

    (Option/accessory.) Trailer Stability Assist (TSA1) is part of the ESC2 stability system and is a function designed to help stabilize a vehicle that is towing a trailer when the vehicle and trailer have begun to sway...

    Towing using a towline

    This section refers to one vehicle being towed behind another using a towline. Before towing another vehicle, check applicable speed limit regulations...

    Other information:

    Volvo XC90 2015-2024 Owners Manual: Radar sensor


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    Volvo XC90 2015-2024 Owners Manual: Activating and deactivating power front seats


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