Ford and GMC ambulances: brake lights turn on by themselves medium
The brake lights on these ambulances were wired in a way that can make them light up even when the driver has not touched the brake pedal. Drivers behind may think the ambulance is slowing down when it is not, and may brake hard or swerve for no reason. The lights themselves are not broken; the problem is how they are connected. Whelen will replace the brake lights at no cost to the owner.