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Toyota Prius Lights Not Working

Toyota Prius lights not working can be a bit of a nightmare on the road, and it’s an ailment that needs prompt attention because it can affect you and your passengers’ safety. 

When your Toyota Prius lights aren’t working, a common cause is a blown fuse. Fuses act as safeguards for the vehicle’s electrical systems, cutting off power when there’s too much current. By locating the fuse box and replacing the blown fuse with one of the same amperage, you can restore light functionality to your Prius, ensuring a safer driving experience in low visibility conditions.

However, if the issue persists, it might be due to a malfunctioning headlight relay. This relay functions as a bridge for power between the battery and your headlights. Replacing a faulty relay is akin to fixing a broken link in a chain, reestablishing the connection and bringing the light back to your Prius’s path.

Close up of car headlight

Another reason for lighting issues could be aged or burned-out bulbs. Over time, just like a candle reaching the end of its wick, light bulbs can burn out and cease to illuminate. Replacing these bulbs is a straightforward process that can significantly improve your nighttime visibility and the overall appearance of your vehicle. Ensuring your lights work properly not only keeps you safe but also enhances the aesthetics of your Toyota Prius, lighting up the road ahead with clarity and confidence.

Toyota Prius Lights Won’t Turn On

Prius lights that won’t turn on can irritate you, but the fix might be quick and easy. 

If your Toyota Prius lights won’t turn on, the best solution is to go through a basic troubleshooting process. Start with the obvious by asking yourself if you’ve turned your vehicle on and activated the lights with the appropriate button or control. 

Next, you’ll need to check fuses, lights, and electrical connections. In most cases, you will find the issue by doing those visual inspections. Lights not coming on also occurs when batteries and alternators don’t work correctly. Those components can cause glitches, from blinking lights to dim and unresponsive lights. Thus, you may need to have them checked. In some cases, the culprits are complex wiring issues and faulty control modules.  

Toyota Prius No Dash Lights

You might notice that your dash lights won’t turn on when you get into your car. That can be alarming, but a little TLC might help. 

If your Toyota Prius has no dash lights, you most likely have a weak or dead battery. Your battery could also have corrosion on its terminals. That’s assuming your car won’t start either. A blown fuse may be to blame if your vehicle starts and other accessories work, but your Prius has no dash lights. 

You will need to look under the dash for your fuse box and find the fuse that goes to your dash lights. You’ll be able to see if it’s broken because you’ll see a split in the metal piece. Replace the fuse and see if your dash lights regain life. 

You can also try a little trick if your fuse is fine and your climate lights and audio mechanisms are working—first, power off your vehicle. Then, open your driver’s side door and turn on the headlights. Close the door and then put your foot on the brake.

Next, press the odometer button and the power button simultaneously. Your lights will most likely come back on, but you might want to take your Prius to a technician for a diagnostic test anyway. 

Toyota Prius No Fog Lights

Your fog lights are probably the least commonly used, but they still need to work. You don’t want to get caught in the fog with no special light, so it’s best to tend to this problem now.

If your Toyota Prius fog lights won’t turn on, the first things you should check are the fuse and the lights themselves. Your fog light relay could also be out. The relay is a larger electrical component that also plugs into the fuse box. 

You can find your fuse box under the dash, and there should be a diagram under the cover. 

Toyota Prius Tail Lights Won’t Turn On/Off 

Your Toyota Prius tail lights are integral to your vehicle’s warning system. They let nearby drivers know your presence so that they can avoid hitting you. Having an issue with them turning on is a safety hazard, and lights that won’t turn off are simply annoying. 

If your Toyota Prius tail lights won’t turn on/off, you most likely have a blown light or fuse. You’ll need to check the fuse first if your lights won’t turn on. Your Prius’s fuse box is most likely located under the steering column. 

You’ll need to remove the cover to reveal the fuses and the labels that tell you which accessories they power. Remove the fuse associated with the tail lights and look for a break in it. Replace it and see if your lights turn on. 

If your tail lights are still nonfunctional, you can walk around to the lights to see if you can spot a blown bulb. Your tail light cover should have two clips on it that you can easily remove. Do that so that you can see if a bulb is out. If so, you can visit an automotive store and purchase a replacement to install. 

The issue could be a simple electrical connection if your fuse and bulb are fine. Be sure to inspect the tail light assembly inside your trunk to see if all the wires and connectors are firmly in place.

Snug the connectors if they seem loose to get a better connection. You may need to see a mechanic if none of the basic troubleshooting processes work, as you may have a more involved electrical issue. 

If your Toyota Prius tail lights won’t turn off, you must ensure that you have turned your key to the “off” position and closed your door all the way. Tail lights can also fail to turn off if your battery drains or corrosion exists near a junction connector. Thus, you’ll want to have your battery tested and have a specialist check the junction connector if the battery is fine.  

Copyright protected article by Know My Auto and was first published on May 5, 2022. .

Toyota Prius Hazard Lights Won’t Turn Off

Failing to turn your hazard lights off can cause unnecessary concern from drivers and draw law enforcement’s attention. Therefore, you’ll need to get your hazard lights turned off immediately. 

If your Toyota Prius hazard lights won’t turn off, you most likely have not depressed the correct button or haven’t pressed the right button firmly enough. The hazard light button is the triangular button in the middle of the dashboard. Pressing it with enough force should cease the blinking.

If the button doesn’t respond to your finger, the problem could be more severe. The next productive step is to look for the fuse associated with the hazard lights and remove it. Your owner’s manual should display a diagram of the various fuses and to which accessories they belong.

Otherwise, your fuse box may have its own diagram. Try removing the fuse and seeing if the hazard lights turn off at that point. If so, you can keep the fuse out until you have additional time to get your car home or to a shop and investigate the issue. 

If it does not stop blinking, you’ll need to have a technician search for an electrical issue. ABS modules and Skid Control modules tend to go bad and cause hazard lights to blink randomly and refuse to turn off. 

The copyright owner of this article is and was first published on May 5, 2022..

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KnowMyAuto is the sole owner of this article was published on May 5, 2022 and last updated on .

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