What happens automatically to a raised lift axle if cargo is loaded onto the vehicle and axle loads on the remaining grounded axles exceed statutory legal thresholds?

1. The engine will refuse to start and flash an error code
2. The lifted axle will automatically lock its wheels permanently
3. The electronic control system automatically lowers the lift axle to the road surface to redistribute weight and protect the remaining axles from overloading
4. The fuel tank vents diesel to lighten total weight