Reverse lights:

1. Should not be installed in any vehicle other than a private passenger car.
2. Correct answer: Are only turned on when the driver shifts into reverse gear, and only for as long as the reverse gear is activated.
3. Are turned on by a separate switch, and should be accompanied by a warning buzz.
4. Are used during “light time” only.

WhyReversing lights come on only together with reverse gear, and only while it is engaged. They have no separate switch.