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Hopkins Trailblazer Electronic Deer Alert

Hopkins Trailblazer Electronic Deer Alert

Item # HM27512VA
Our Price: $13.89
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Backup Camera HM27512VA - Deer Alarm - Hopkins
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It may be small, but this electronic deer alert will carry sound up to 1,100 feet away. It prevents possible damage to your vehicle should you have a close brush with Bambi. 1-800-496-5010 to order Hopkins backup camera part number HM27512VA or order online at Free expert support on all Hopkins products. Great prices and Fastest Shipping for Hopkins Trailblazer Electronic Deer Alert. Backup Camera reviews from real customers.
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  • Reviews (32)
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Hopkins Backup Camera - HM27512VA

  • Alerts and Sensors
  • Hardwired
  • Deer Alarm
  • Hopkins

It may be small, but this electronic deer alert will carry sound up to 1,100 feet away. It prevents possible damage to your vehicle should you have a close brush with Bambi.


  • Helps prevent collisions with animals
  • Can be activated in 3 ways
    • Switch on dash
    • Wired to the ignition
    • Wired to the high beams
  • Works at any speed
  • Warns off many types of animals
  • Made of weather-resistant material
  • Range of alarm: 1,100 ft

Although you enjoy the great outdoors, you don't want your vehicle to experience any close encounters with wildlife. Unlike typical, wind-activated whistles, the electronic Deer Alert works at any speed. It can be triggered by a dash-mounted switch, by the ignition, or by activation of the high beams. Its unique sound is effective on a wide variety of animals and over an 1,100 foot range. The device is weatherproof and resists clogging by dirt, debris and grime from the road.

27512VA Electronic Deer Alert

California residents: click here

Video of Hopkins Trailblazer Electronic Deer Alert

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

Video Transcript for Hopkins Trailblazer Electronic Deer Alert Installation - 2005 GMC Sierra

All right. Today on this 2005 GMC Sierra Crew Cab, we're going to install part number HM27512VA. This is a Hopkins Trailblazer Electronic Deer Alert. We can go ahead and try it out. First thing we're going to do is run our wires from our switch to the outside. This is turn to alert off and on, and what I'm going to do is take two ends or two wires, one's shorter than the other, I want to tape them together and then pull both wires through the firewall. We'll go ahead and run this through an existing grommet in the firewall. All right, we're going to use the small grommet right here.

This actually already has the wire going through it, so it makes things a little bit easier. It's pretty flexibility so you can scoot it out of the way or maybe even make a nick, and then go ahead and make a cut in it with a knife to help run the wire through. It's kind of hard to reach from inside to the outside to pull the wire through, so we're actually going to use the black wire from this alert itself, we're going to push it through here from the outside to the inside and use it to pull the wires back out. Okay. All right. We'll take two simple wires, I'm just going to give them a twist to help pull them together, this folds over, and we'll connect it to with some tape. All right, let's go ahead and pull the wire back out.

Okay. Got one wire pulled through and we'll go ahead and bring the, pull, take up the snack, and remember we got the other wire to pull through where we already have it taped, we'll go ahead and work it through as well. We'll take a moment to mount our switch using the provided bracket, there's a nut on the switch that we have to remove and a couple of washers. Actually, one washer we'll leave in place. There's also a nut on the back side. All right.

We'll put it back together, we'll find a switch to the bracket, pull it back together. We're going to leave this loose because we may have to switch this around, but we'll just piece it together for now. inaudible 00:03:10 now at this point it's a good idea to find a location where you want it. In this case, there's some sheet metal right underneath here, you can attach it to using the existing holes in the bracket here, you can use some self-tapping screws will work just fine. They don't come with the kit, or what does with the kit, you can use adhesive and mount it to either the sheet metal or in this case I think we'll go right down to the bottom edge of the plastic. All right. Again, we're going to leave this loose for now.

Let's go ahead and go underneath the hood and start making some electrical connections. Okay, now our short wire is going to go directly to ground, so we're going to use small ring terminal that doesn't come with the kit, part number DW05721-1. Shorten up the wires. We'll crimp it into place and we're just going to attach to the sheet metal back here. We're using self-tapping screw, it doesn't come with the kit. This is a simple number 8 self-tapping screw, it uses a 1/4-inch bit. I'll go ahead and drill my hole first, and then I'll put my ring terminal on. Okay. Let's go ahead and find a location for our trailblazer here. This definitely gets installed behind the grill, somewhere in this location right here. To make things easier, we're going to go ahead and remove the grill. This top cover, we have to remove first. There's some of the plastic rivets that we have to remove, and then we go ahead and pop the grill loose. We also have one bolt underneath to remove as well. Okay, to pull out the center of our rivets, just take a flat screwdriver and pick up the edge, and then you can go ahead and pop them loose. Also, trim panel tool works pretty good, too. Okay, to loosen up our grill, we have to remove this one bolt. Use a 10-millimeter socket to do that with. Okay, the grill goes around to the edge here and there's a snap right here. If we use a plastic pry bar, we can pop it loose on both sides. There's a couple snaps on the top that you can use a trim panel tool to pop loose, and there's two at the bottom as well. We can go ahead and take the grill out of our way. All right. I'm going to go ahead and route my Trailblazer through here for now, and I think we'll go ahead and install it on this bar right here. I'm going to drill out two mounting holes onto that brace right there. We'll go ahead and use our trailblazer to mark our holes, and we're using the 3/32 drill bit, that will match the screws that come with the Trailblazer. All right, now, I've actually replaced the small screws that come with the kit with something just a little bit bigger and stronger, and we'll go ahead and attach it to our bar here. This is just a personal option, you don't have to do it, but this will be a little bit to grab on the metal and our Trailblazer. That's secure. Now we'll go ahead and take a moment to go ahead and secure our wires and I think we'll actually add some wire loom to help keep these together. All right. We'll run our wire loom up to the fuse holder here and then our red wire will go to 12-volt power supply. In this case, it's going to be underneath our fuse box here. We'll go ahead and take the lid loose for starters, and then to get underneath here to the post, we need to remove this cover. To remove this cover, we're going to remove this bracket. We'll use 13-millimeter socket to remove these bolts. There's a couple of these clips that will loosen up to pop the top off. Let's go ahead and attach this post right here for power. All right, now our post here isn't hot. That's because that this post is powered by this fuse right here. This is just a cover for a fuse, so we can check the owner's manual and see what fuse to use in this location. We'll go ahead and put a new fuse in place and we'll go ahead and check it again. Cool. All right. I'm going to get another ring terminal, it doesn't come with the kit, and we'll go ahead and attach it here. We'll go ahead and twist the wires, cut off the excess, crimp down on our ring terminal. Then we'll go ahead and undo this nut and put it underneath of it. Now, I'll use a 10-millimeter socket. Go ahead and route our wire down and go ahead and put our cover back into place. Okay. Let's go ahead and put our bracket back into place. Put our cover back into place. Then we'll just simply bundle up our excess wire. Think we'll tuck it around the fuse panel at the bottom and then back up in here, we'll go ahead and zip tie our excess out of the way. Double check to make sure your wires stay away from the hinge, we'll go ahead and zip tie them into place. Cut off the tails of our zip ties. We can go ahead and try it out. All right. Let's go ahead and add a couple more zip ties to hold the wire up and out of the way. Then we can go ahead and put our grill back on. Grill's in place, let's go ahead and put the cover back on. Double check our switch, we just had it on there temporarily. Okay. That's the way we want it. Let's go ahead and put our hard wire back into place. Flat washer, has a little tang that goes into the . Or has a little part that goes into the groove here. Put that back on. Star washer. Then our last nut. We can use a number 8 deep well socket to tighten it down, and we're good to go. All right. Now that will finish it for the Hopkins Trailblazer Electronic Deer Alert part number HM27512VA on our 2005 GMC Sierra Crew Cab. .

Customer Satisfaction Score:

Customer Reviews

Hopkins Trailblazer Electronic Deer Alert - HM27512VA

Average Customer Rating:  4.6 out of 5 stars   (32 Customer Reviews)

It may be small, but this electronic deer alert will carry sound up to 1,100 feet away. It prevents possible damage to your vehicle should you have a close brush with Bambi.


Disappointed that the signal is only 105 feet
My existing one is 1700 feet.
But than yours was about $xx cheaper.
I haven't installed it yet so I really
don't know how well it works.

I looked into the packaging and contacted Hopkins to clarify the range that this signal will reach. They have confirmed that on the packaging of the product, when it says Up to 105 feet, it is referring to what other signals can reach. However, this part # HM27512VA
Hopkins Trailblazer Electronic Deer Alert
will be able to reach up to 10X that distance, being 1,100 feet.
-- Etrailer Expert Katrina B - 03/25/2022


Guys and gals. The Trailblazer Deer Alert is a very effective tool at letting deer know that you're approaching. For those not familiar, it's like a train whistle warning humans so we don't get startled and panic. This is the warning for deer. When you finally get to them, they'll all be looking your way, it's kind of weird, but now they dont scatter. It makes it safer to avoid them when they stay put. Each of my 3 family cars have it! Easily wire this to your fog lights, etc. Safe driving.

Very good!
BobJeepNJ - 11/26/2017


Installed the Trailblazer this past weekend 7/6/14 and was very pleased with the audible alert. I drive home after working second shift in heavily wooded areas and see deer on many occasions. This past Tuesday I saw two deer in different locations and both of them headed into the woods when they heard the Alert. Last night I noticed one standing on the edge of the woods on my left - he looked up and also headed back into the woods. This product really works and I highly recommend it to anyone driving in rural areas at night. You have another satisfied customer.

I have retired from work so I no longer make the 1 hour commute home after midnight on weeknights . But I still use the alert when driving at night an it still works fine. I bought a pick up so now I am in the market for a wireless infrared back up camera and back up sensor combination for collision avoidance please email me when this product becomes available. Would also like to have a night vision camera on front of the vehicle as an option for night driving in rural areas. Have a great weekend !
Gary G - 07/11/2015


Not only have I not hit any deer or seen any cross the road in front of me since I installed this on my vehicle, I have also installed one at my garden plot and have not had any problems with deer in my garden since. Before that, there were deer tracks all over the place.

How did you adapt this for your garden? Prefer to use a 110v outlet.Thanks
-- comment by: Stephen - 06/19/2013


I have used the deer alert for over 10 years, I have one on my Harley and both of my vehicles, when turned on, and when deer are present, you can see them stop in their tracks, works great, I have bought them for family and friends


I have had the electronic deer alerts in the past,and have full confidence in them,recently I have ordered more of them to install on other vehicles,they come with everything needed for easy installation,also i9n the past month I have had on four seperate occasions where I can testify that they actually do detere deer and other animals from running out in front of your vehicle, Iprefere to wire them up to the toggle switch provided so they can be turned on and off at will,unlike the whistles that only work from 30m.p.h. and up these work all the time. GREAT PRODUCT!


As always I received exactly what I ordered in a timely fashion. When I'm looking I always open first and 9 out of 10 times that is as far as I have to go. I definitely recommend to my friends, keep up the great work


This is a Christmas present for a family member. Don’t know if it works but as always, I received my purchase quickly and the quality is better than expected. I trust etrailer and will continue to buy their products


Very PleasedThe product was exactly what I was looking for & the speed of the delivery really surprised me.
In the future, I'll start my search with


After having a deer run directly into my maxi scooter early one morning on the way to work. I've installed Hopkins Deer Alerts on my two maxi scooters, My wife's and my car. We just traded one car and I purchased two more. They do command the deer's attention as they stop and look.


Not installed yet; but, hooked it to a battery. It should help(hope so after hitting five deer)!




I ordered the electronic deer warning system. My order was received fast and the product is great.


Drove 200,000 last 12 mo. Only had 1 close call,was in town in UT. Deer are not afraid of traffic. Unit finally burned out. Just replaced unit. Now I even have a spare.just in case.


I have Deer alerts on all of my vehicles, they work great, haven't hit any yet


I love this really makes the deer pay attention to what is going on around them and have stopped many of them from tagging my car. The driver is also responsible for what is going on while driving. So with both the driver skills and the deer alert accidents can be avoided.


The product functions just fine,but whether it really distracts deer I don't know. I live in very high deer populated area and since I installed the deer alert, I have had very few close encounters. I have seen them raise their heads and look.


Easy to install.The hardest part was getting my hands behind the grill to mount the transducer.


Really works. Drive early in the morning and late in the evening. Deer are always out but they go the other way when I'm coming. Great Product.....Give a 10 our 10.


Great deer whistle, I've been using one for 7 years on my Ram then sold the truck and needed another one and this one works just as well. Great product.


when deer hear it they raise their head and go in a different direction . works great so far after a year.


deer whistle still works great after a year. No bent fenders


arrived quickly; hardest part was attaching it behind the grille; hope it works!


Ordered 2 products from 2 companies. Etrailer had the product here before the other company has shipped.


Best price for the item. excellent service, would order from here again

Show More Reviews

See what our Experts say about this Hopkins Backup Camera

  • Operation and Sound of Deer Alert and Will it Bother a Dog Inside the Vehicle
    I actually made that video to demonstrate the sound the deer alert # HM27512VA makes. I define it as an echoing chirp. It chirps about 4 times, the first is the loudest, and then gets only slightly quieter with each chirp after that. Then it repeats as long as it is on. It will make noise as long as there is power to it so you would probably want it on a switch. You would not have to keep turning it on and off. It is probably not going to bother your dog since it will be in the vehicle...
    view full answer...
  • What Circuit to Tap Into to Install the Hopkins Trailblazer Electronic Deer Alert # HM27512VA
    Basically you will want to look for a circuit that sees 12 volts when the vehicle is running an none when the vehicle is off. Common circuits are radio, ignition, traction control switch, power antenna. Another way to wire the Hopkins Trailblazer Electronic Deer Alert # HM27512VA would be to wire it to the high beams circuit so that it activates when you turn your brights on.
    view full answer...
  • Will Hopkins Trailblazer Electronic Deer Alert # HM27512VA Work for Moose
    While the Hopkins Trailblazer Electronic Deer Alert, # HM27512VA, is primarily marketed as a deer alert, it will also work to ward off other animals such as dogs, cats, moose, honey badgers, ocelots and other animals that frequently cross roads. Since this unit is electronic, it works at any speed and has a 1/4 mile range.
    view full answer...
  • What Does the Hopkins Electronic Deer Alert Sound Like
    I suppose when describing the sound, everyone will have a different idea of what they think it sounds like. So rather than giving you my opinion only, I made a video so you could hear it for yourself. To me, it is like an echoing chirp.
    view full answer...
  • Can the Switch for the Hopkins Trailblazer Electronic Deer Alert be Installed Inside of the Vehicle
    First, you can install the switch for the Hopkins Trailblazer Deer Alert, # HM27512VA, in the cab of the vehicle. You would just need to route the wires that lead from the switch to the alert through the firewall to the alert. The only restriction is the length of the wire. You may need to extend the switch wires if they do not reach from the alert to the inside of the vehicle. This installation method may require drilling through the firewall if the wires cannot be routed through an existing...
    view full answer...
  • Is Hopkins Trailblazer Electronic Deer Alert Weatherproof Enough to be Used on a Motorcycle
    The deer alert is weather resistant enough to be used on a motorcycle. But, I advise that you protect it from the elements as much as possible. Deer will not discriminate between passenger vehicles and motorcycles, so if you can mount and install it on the bike then it would be a good idea. I have a co-worker here who had a friend get hit by a deer while riding so it can happen.
    view full answer...
  • Where Should the Deer Alert Be Installed on a Vehicle
    You would want to mount the alert in a safe area behind the grill of your vehicle that will prevent it from getting direct exposure to the weather, but you also want it to be pointed forward so that the sound of the alert is directed out beyond the front of the vehicle. I know this is not as specific as you would like, but due to how different most vehicles are there really is not one specific way to do it. You will need to take a look at the front of your vehicle and decide what you think...
    view full answer...
  • Will Hopkins Trailblazer Electronic Deer Alert Scare Away Aggressive Dogs For Bicyclist
    The Hopkins Trailblazer Electronic Deer Alert, part # HM27512VA may startle a dog the first time or two that you activate it, but I am not sure if I would rely on it solely for defense from an aggressive dog. You would need a 12V power source on your bike and that would add additional weight which would not be good when being chased by any animals. The alarm has a chirping sound you can hear if you want to check out the attached video.
    view full answer...
  • Installation of Hopkins Trailblazer Deer Alert
    The Trailblazer Deer Alert # HM27512VA is a fairly easy install for any skilled mechanic. Most of it is basically routing and connecting wiring which can take time but isn't too complicated. However, depending on your vehicle it could take some temporary removal of existing parts to mount the device. One thing that can make the install easier and take less time is to not use the switch and wire the alert to an ignition source. This will make the alert sound constantly when the vehicle...
    view full answer...
  • Will Deer Alert System Work On 2007 BMW R1200rt Motorcycle?
    The Hopkins Trailblazer Electronic Deer Alert # HM27512VA has some really good customer reviews and should work well on your motorcycle as long as you can mount it to the front in some way. We don't have a waterproof switch, but we do have the Pollak Toggle Switch Rubber Boot -15/32"-32 Thread # PK25370 most people use for these switch applications to combat rain. Although you are ultimately responsible for your safety especially on a motorcycle, this system will help with at least alerting...
    view full answer...

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