The stop light switch:
A. Turns on the brake lights to warn other drivers behind you.
B. Tells you when you need to use your emergency brakes.
C. Tells you when the air brake system is low on air pressure.
Answer: A. Turns on the brake lights to warn other drivers behind you.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.