@FlyingTexan The reason for LR asking about the dimensions are tied to the trailer sway assist. You put in the dimensions and it calculates how much pressure to put on the brakes to stop trailer sway.
side of the vehicle, to assist the driver when reversing a trailer. Trajectory lines are overlaid onto the images, depicting the predicted path of the trailer.
Different camera views can be selected via the touchscreen.
Tow assist can be configured to use either the surround camera system or the rear camera system.
The tow assist icon displays on the touchscreen passenger side bar when a trailer is connected.
To activate tow assist:
1. Touch the tow assist icon.
2. Select the appropriate profile for the connected trailer.
3. Select Reverse (R).
The trajectory lines change color based on the angle of the trailer in relation to the vehicle. Red trajectory lines indicate that damage may occur to the vehicle or trailer if the steering is turned further in the same direction.
Note: The vehicle's ignition must be switched off before disconnecting a trailer.
TOW ASSIST LIMITATIONS
The following may have an affect on tow assist performance:
Varying ambient light conditions: If varying light conditions are experienced, the trajectory lines are removed from the touchscreen image.
If a door or taildoor is opened: In this event, the corresponding camera view is replaced with a black screen.
If the camera wash feature is used: In this event, the rear camera view becomes unclear.