At the end of Bonnie's video call, after the rock slide, the "hang up" sound effect is heard without the accompanying "checkerboard" effect on the monitor.
When KITT is driving himself on the compound to rescue the captives, hands can be seen steering a conventional round steering wheel.
When Michael asks if they can Turbo Boost over the car with the explosives, KITT states they don't have enough room. Yet moments later, after they are stuck and unable to gain any traction in the landslide, they are able to Turbo Boost even though they are stationary.