bing tracking image
  1. Tail Lights
  2. Hopkins
  3. Multi-Function Tail Light
  4. Halogen Light
  5. Replacement Bulbs
  6. White
Hopkins Backup Alert - Replacement 3156 Bulb with Audible Alert

Hopkins Backup Alert - Replacement 3156 Bulb with Audible Alert

Item # HM20101VA
Our Price: $32.35
You Save: 27%
Tail Lights

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Orders above $99 qualify for Free Shipping
Shipping Weight: 0.2 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos


Need help with installation?
Locate installers near me
As an extra safety precaution, you can replace your tail light backup bulb with this warning light. As you put your vehicle in reverse, anyone who might be behind you will hear a beeping alert. Great Prices for the best tail lights from Hopkins. Hopkins Backup Alert - Replacement 3156 Bulb with Audible Alert part number HM20101VA can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (60)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

Hopkins Tail Lights - HM20101VA

  • Multi-Function Tail Light
  • Halogen Light
  • Replacement Bulbs
  • White
  • Hopkins
  • Single Bulb

As an extra safety precaution, you can replace your tail light backup bulb with this warning light. As you put your vehicle in reverse, anyone who might be behind you will hear a beeping alert.


  • Warns pedestrians as you back up with audible alert
    • "Beep-beep" can clearly be heard
  • Replaces vehicle's backup bulb


  • Replaces 3156 bulb
  • 12-Volt bulb

Simply replace one of your vehicle's existing 3156 backup light bulbs with this combination backup light and warning alarm. The base of the halogen bulb beeps whenever the vehicle is shifted into reverse.

20101VA Taillight Warning Bulb

This Product Fits The Following Vehicles

California residents: click here

Video of Hopkins Backup Alert - Replacement 3156 Bulb with Audible Alert

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Hopkins Vehicle Lights - Replacement Bulbs - HM20101VA Review

Today we're going to be taking a look at part number HM20101VA. This is the Hopkins Backup Alert, replacement 3156 Bulb with an audible alert. That's to add safety while in reverse. You can replace your tail light backup bulb with this warning light. As you put your vehicle in the reverse gear, anyone or anything who might be behind you will be alerted. This is going to send out a really consistent beeping sound.

The beeping sound can be clearly heard, again, when you move your vehicle to the reverse gear. That sound will vary depending on the vehicle that this is installed in. This is not a universal application, though it does fit in any vehicles, but if your vehicle's reversible to size 3156, then this product is going to work perfect for your application. I'm going to go ahead and hook it up to our external power source that way you can see how bright the bulb is as well as hear that audible beeping alert. Here at the housing, that's where the sound's going to come out. I'll get this connected and you'll be able to hear it.

Get all the wires on there. Okay, now turn it on. You can hear that consistent beeping as well as the bright light. It's really going to send out that consistent beeping sound alerting anybody that may be behind the vehicle when we move the vehicle into the reverse gear. That's going to do it for today's review of part number HM20101VA.

This is the Hopkins Backup Alert. .

Customer Satisfaction Score:

Customer Reviews

Hopkins Backup Alert - Replacement 3156 Bulb with Audible Alert - HM20101VA

Average Customer Rating:  4.6 out of 5 stars   (60 Customer Reviews)

As an extra safety precaution, you can replace your tail light backup bulb with this warning light. As you put your vehicle in reverse, anyone who might be behind you will hear a beeping alert.


Nice idea,but it took a few bulbs to be successful. The first ones either never alarmed or didn't light up. Replacements worked beautifully and still are months later


Fast delivery and the part is as described Thanks

Chevrolet Express Van

I ordered a backup alert/reverse light for my cargo van I received the wrong item I called customer service and they had the rite item in my mailbox in 2 days will purchase from in the future
Ty Russ K

No problems
Russ K - 06/01/2017


Very happy with the service I received - fast shipping, and I got exactly what I ordered. The sound level of the product itself is a bit weak. On my old pickup I had an external beeper, and could always hear it from the cab whenever backing up. This one is easy to install, but I have to listen very carefully to be sure that it is working when I back up. I would recommend getting an external beeper mounted on your vehicle if you want to be sure people know that you are backing up.

Still works fine. Havent had any problems with it. Still think that it should be a little louder.
David F - 09/04/2016


Every week, I see in the news where some mom in her suv has backed over her own child. This alarm will catch the child's attention and give time to shout or get away. It should also work on dogs and cats. Is not effective on trash cans. ---Only suggestion: that the light blink.

-- comment by: pHIL l - 07/30/2014


When a backup light went out on our Coachman Motorhome I was just going to replace the bulb with the same. Looking around online I found this replacement bulb that also made an audible sound when the vehicle is in reverse. Visibility in reverse is nearly impossible, even in small motorhomes like ours ( 24'). We have a backup camera, but the viewing range is very limited to just beyond the rear bumper. With this product I have another level of safety I didn't have before, with the audible sound.
etrailer was really good about keeping me in the loop as to where my order was in the process. Turned out it was on Backorder, and would take a few days longer to make it to me in Seattle, but they sent emails on the status of the order regularly .
Cool product and great service from seller= a good buying experience!

1999 Ford F-150 and F-250 Light Duty

Definitely easy to install just like replacing regular back up bulb. Also, etrailer sent me the correct light for my model and year pickup truck. The whole installation process took about ten minutes, most of the time trying to find the correct socket size wrench! Only one minor issue is the back up alert sound is not that dramatic in volume while sitting in the truck and backing up. Maybe it is louder outside. In any case, this beats attaching brackets and splicing wires for backup alert as with other type units.

1999 Ford Freestyle

Very satisfied with the back up light w/alarm.
2 one for my wife's Ford freestyle. And one for my f150. Wamted tne back up alarm because we have kids and for parking lots .Easy install . Loud alarm just this morning when she was backing down the drive way I heard the alarm inside the house. Great product. Allready referred some friends to your product thanks Mike. Milwaukee wi. ??

Just like new.
Mike L - 11/16/2017

2009 Ford Ranger

Bulb with an audible alert installed on my 2009 Ford Ranger.

1994 Ford F-250 and F-350

Product was exactly what I was looking for at a very reasonable price. The only problem I had was figuring out how to remove the tailight lens (NOT's problem). I wanted a means of warning anyone behine my truck that I was backing up and this was perfect.


Product worked as advertised. Installation was as easy as replacing a light bulb. Bulb is attached permanently. Would liked to have seen a socket so bulb could be replaced. When the bulb burns out I will replace the unit with a standard 3156 bulb and splice the alarm into the lamp wiring and leave it somewhere in the tail light cavity.


easy installation, works well. won't know about the light output until I use the backup lights in the dark. Good service and packaging from the seller.


There was one of these installed ( not from etrailer) when I purchased my van. After a year or so it stopped working. I looked for quite some time to find a replacement that wasn't $40.00+ and E trailer gave me one. I can now feel better when backing up , knowing I will be heard and well lit . Thank you.


Easy to install. So far it is working fine. Most anyone close by should hear it. However someone in a car might not hear it. I have a van with some blind spots. This is a big improvement over not having the warning. I ordered just one. I may order a second to see if that would increase the sound level. Right now I would recommend.


This product is a cost effective way to provide safety warnings during construction activity. We priced other items and they were way more expensive and required a mechanic to install. In a couple of minutes we installed this item and it works perfectly. has a quick and easy website and great service!


Hopkins Backup AlertI've had it in my truck for 6 months now and it works great.

It simply replaces one of the backup bulbs in your tailights.


Product didn't fit my truck as it said it would I'm hoping that I can find someone who I know that it will work for... would NOT trust this company to supply the correct information on what truck there products fit.....

Im sorry the bulb you purchased didnt work for you. If youd care to reply with the year, make and model of your vehicle, Id be happy to check and see if we have a solution for you.Ill have one of our Customer Service folks contact you regarding the bulb you currently have.
-- Etrailer Expert Mike L - 01/24/2018

2016 Ford F-150

What a great product. It's nice to know that when I'm backing up I can get everybody's attention. Safe. Easy to install. Great price. Thanks etrailer I will always buy product from you.

2014 Ford F-150

Isn't even close to b4ing correct !
I called and was told idt was correct your website claims the same thing . Wrong !! 2014 Ford F150 uses a 921 bulb my Ford checked . If you look at the top of this page 2014 Ford F150 is listed as a fit. Wrong . It will cost more to return this than it's worth . Sorry but 1 star poor rating !!

1994 GMC Sierra

What a great design idea and quality product. A snap to install and works superbly. The brightness of the small bulb is surprisingly brighter than the larger OEM bulb.
Thanks for the this simple solution to our perplexing safety concern.
Vehicle: 1994 GMC Sierra 1500 PU.


These little guys make a lot of noise for their size. etrailer got them
quickly to us. We recomend them highly.

2009 Chevrolet Malibu

I was completely amazed by this little gizmo. What a fantastic cost effective alternative!


Works great if you use one in each reverse light.


The back up alarm could be louder but works well

2014 Chevrolet Volt

The product was exactly what I needed and I already installed it in my new 2014 Chevy Volt

Thank you for your prompt delivery

Still working like a champ Use it on my Chevy volt
Paul T - 09/01/2015

Show More Reviews

See what our Experts say about this Hopkins Tail Lights

< Previous
123. . .4

Do you have a question about this Tail Light?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate tail light information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Adam R
Expert Research:
Adam R
Employee Rachael H
Expert Research:
Rachael H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Lindsey S
Updated by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Hannah L
Updated by:
Hannah L
Employee Cole B
Installed by:
Cole B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.