Reverse (backup) light doesn't come on

Symptoms

• No white light illuminates when shifting into reverse
• Backup camera may still work fine even without the light
• Other rear lights work normally
• Issue may be on one side or both

Likely causes

• CommonBurned out reverse light bulbReverse bulbs wear out over time just like other exterior bulbs.
• CommonFaulty reverse light switch on the transmissionThis switch detects when the car is shifted into reverse and can fail, especially on higher mileage vehicles.
• PossibleBlown fuse for reverse lightsA dedicated fuse failure can take out one or both reverse lights.
• Less commonWiring issue near the transmission or rear light housingDamaged wiring can prevent the signal from reaching the bulb.

What to do

1. Have someone shift into reverse while you check both reverse lights from outside the car.
2. If only one side is out, replace that bulb first, since it's the simpler and more common cause.
3. Check the fuse box for a blown reverse light fuse and replace with the correct amperage.
4. If both sides are out, suspect the reverse light switch, usually located on or near the transmission.
5. Check if the backup camera and reverse warning beeps still work, which can help isolate whether it's a light-specific issue.
6. Access the reverse light switch (location varies, often near the top of the transmission) if bulbs and fuses check out.
7. Have a shop test and replace the reverse light switch if it's confirmed faulty.
8. Get this fixed promptly since it affects visibility to others while backing up.

Tools and parts

• Screwdriver or trim tool (varies by vehicle)
• Fuse puller or pliers

When to call a pro

If both reverse lights are out, the switch on the transmission is likely the cause, and a shop can access and replace it more easily on most vehicles.

Safety