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The vehicle’s radar may not recognize a stationary vehicle as previously moving. In this case, it is possible that queue assist will not stop the vehicle behind the stationary vehicle. When approaching stationary vehicles, it is important that the driver is ready to intervene to avoid an impact, if necessary.

Queue assist is an enhancement of adaptive cruise control. When adaptive cruise control is active, queue assist follows a vehicle ahead to a standstill. Queue assist is intended for use in lines of traffic on main roads, where minimal steering is required.

If a vehicle ahead slows to a stop, queue assist brings the vehicle to a stop and holds it stationary.

While the vehicle is held stationary, queue assist applies the Electric Parking Brake (EPB) if:

  • The driver cancels queue assist.

  • The vehicle is stopped for more than 3 minutes.

  • Driver intention to exit the vehicle is detected.

  • A malfunction is detected.

As the vehicle ahead moves away, a brief press on the accelerator pedal resumes adaptive cruise control operation.

At very low speed, queue assist may stop for stationary objects, e.g., when the vehicle ahead changes lane to reveal a stationary object. The vehicle's radar cannot always distinguish between a stationary vehicle and a fixed object like a road sign, drain cover, or temporary barrier. Objects such as these may cause unexpected braking or cancellation. The driver should intervene, if appropriate.