Before starting work, disconnect the wire from the "-" terminal of the battery.

The following types of lamps are used in the rear light:
- brake light and side light bulb - A12-21+5 (has two filaments);
- turn signal lamp - A12-21-3;
- reverse light bulb - A12-21-3.
[The text is copied from the online resource: VazBook]
The replacement is shown using the example of the left tail light reversing light bulb. The right tail light does not need to be removed to replace the bulbs.
Loosen the rear light mounting screw and...

...remove the tail light from the body.

Turn the bulb holder counterclockwise and remove it from the flashlight.

Press on the bulb, turn it counterclockwise until it stops and remove it from the socket.

Install the new lamp and light in the reverse order of removal. The locking tabs of the light housing must enter the holes in the body.

