Viper Responder LC3 5706V

2-Way Car Security + Remote Start System

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Product videos

• 4-Channel Vehicle Security System
• 5-Button LCD Transmitter
• 1 Mile Range
• 5-Button Sidekick Remote Control Transmitter
• SuperCode Encryption
• Stinger DoubleGuard Shock Sensor

Learn more about the 5706v

We apologize

This item has been discontinued

Product Highlights

• 4-Channel Vehicle Security System
• 5-Button LCD Transmitter
• 1 Mile Range
• 5-Button Sidekick Remote Control Transmitter
• SuperCode Encryption
• Stinger DoubleGuard Shock Sensor


Make Sure You Have Everything You Need!

Nearly all cars require an immobilizer bypass to add a remote start system. Click here to add one to your order!

Encore: More Features & Capabilities

sonic electronix logo
Remote Confirmation
3000 Feet
3000 Feet
Remote Start
Keyless Entry
Honk Horn
2 Stage Shock Sensor
Starter Kill Output
Interior Light Supervision
Remote Buttons
Remote Warranty in Years
Siren and Horn Outputs
Siren Included
Two Car Operation
Blue LED (E7 has WHT LED)
Security Features can
be turned off
Auxilary Outputs
Auxilary Horn
Data Port
"Ask" Technology
4 Auxilary Outputs

Peace of Mind for Your Car

The Viper 5706v Responder LC3 is a complete security and remote start system with a full one mile range. The remote has easy to understand priority icons and a text screen on a LCD display. This allows you to command and monitor the vehicle with simple and prioritized buttons. The five buttons control up to 24 different functions on two cars! Plus, it is the slimmest display remote on the market today but still packed with the latest features.

Not only is this a security system but it also has remote start capabilities. If the Active Temp Check is selected, the Responder will display the temperature inside of the vehicle instead of the time. This comes in handy as it lets you view the temperature before actually walking to your car. Not cool, or warm enough in your car yet? Use the Runtime reset to extend your runtime and let it reach the perfect conditions. If anything happens to your vehicle, the security system will notify you right away if you are within range, playing the Revenger siren tones.

Remote Start Car Alarm Remote Start

Allows a vehicles engine to active without physical contact from the user. This feature is useful for warming up your vehicles engine and transmission to operational temperatures. In cold climates you can have your interior hot or in warm climates you can cool it down before use. All of this can be done while in the comfort of your home or office.

Rechargeable Remote Rechargeable Remote

Going through batteries can end up being a costly endeavor. A rechargeable remote allows for more powerful transmitters and additional functions such as touch screen remotes and full color displays. These transmitters will remain at a consistent voltage during the discharge cycle to keep all functions working. With hundreds of recharges available, you save money on replacement batteries.

One Mile Range One Mile Range

Operate functions of your alarm or remote start system and receive notifications from up to a mile away. Utilize necessary vehicle functions from great distances for convenience and versatility. Forget to lock your car? Lock it from in your office, at the mall or in class. Know if your vehicle is being tampered with wherever you are.

LCD Remote LCD Remote

Receive visual confirmations from your vehicles security system or remote start system. Features such as remote start, lock/unlock, arm/disarm and trunk release will appear on the remote’s screen with its current status. An LCD remote can display warning icons when the doors, trunk or hood are open. If your vehicle is tampered with, some remotes display what part of the vehicle was affected.

Keyless Entry Keyless Entry

Performs lock and unlock tasks without physical contact with the vehicle. Power door locks can be controlled from several feet away or even within a building using a remote fob. The fob emits a radio frequency that is digitally encoded to prevent frequency stealing so no one can enter into your vehicle without your wireless transmitter.

Dual Zone Shock Sensor Dual Zone Shock Sensor

This shock sensor utilizes warning chirps for minor disturbances and will trip the alarm if it detects more serious impacts or disruptions. Most dual zone shock sensors have adjustable sensitivity to reduce false alarms or warnings. These sensors let would-be thieves know that your vehicle is equipped with an advanced alarm system and to keep away.

Dedicated Trunk Release Dedicated Trunk Release

This unit comes with trunk release capability and remote control integration for OEM alarm or add-on trunk release systems. Pop your trunk using your remote transmitter for convenience and ease of use. Carrying a handful of groceries? Arms tied up with luggage? Pop the trunk without using your key so it’s open and waiting for you when you arrive.

2-Way Paging 2-Way Paging

Send commands to your remote start or alarm system and receive confirmation that those commands were carried out. Obtain updates on your vehicles security status and get driver pages on the remote. If your vehicle is being tampered with, your remote transmitter will warn you and set off the vehicles alarm.

Viper SmartStart


Gives you complete control your vehicle's security and remote start system from your smartphone with the free downloadable SmartStart app. SmartStart eliminates the need of additional keychain remotes and as long as you in an area with cellphone reception, you don't have to worry about being in range of your vehicle.


Viper 5706V Features:

  • 2-Way Security + Remote Start System with 5-Button LCD Transmitter
  • Not sure which model is right for you? Click Here to compare different Viper models
  • 5-button sidekick remote control transmitter
  • 1 mile range
  • 4-Channel vehicle security system
  • 1-year Sonic Electronix Warranty

Convenience Features:

Security Features:

  • Stinger DoubleGuard Shock Sensor
  • LED indicator light to ward off thieves
  • Door and trunk triggers
  • Failsafe starter kill
  • Neo revenger 6-tone siren
  • Domelight supervision illuminates the vehicle's dome light for 30 seconds when:
    • Disarming the security system
    • Doors are unlocked
  • Compatible with up to 2 separate vehicles

Transmitter Features:

  • 5-Button LCD Transmitter
  • 1 mile Range
  • Command confirmation with vibrating and LED visual feedback
  • Long lasting rechargeable battery with USB charger

Viper Model Comparison

Model Security Remote Start Keyless Entry 2-Way Main Remote Type Range Secondary Remote Trunk Pop SmartStart Compatible
VSS5000 Phone USA 4-Button, 1-Way Included
VSS3001 Phone USA None Included
5906v/5904v LED Screen 1-Mile 5-Button, 1-Way
5706v/5704v LCD Screen 1-Mile 5-Button, 1-Way
5806v 5 Button LEDs 1-Mile 5-Button, 2-Way
5606v/5104v 5-Button 2000 Feet 5-Button, 1-Way
4706v/4704v LCD Screen 1-Mile 5-Button, 1-Way
4806v 5-Button LEDs 1-Mile 5-Button
4606v 5-Button 2000 Feet 5-Button
4105v 4-Button 1500 Feet 4-Button
4115v Unlock ONLY 1-Button 1/4 Mile 1-Button, 1-Way
4205v Unlock While Running 1-Button LED 2000 Feet 1-Button LED
3305v LCD Screen 1500 Feet 5-Button, 1-Way
3606v 5-Button 1/4-Mile 5-Button
3102v 4-Button, 1-Way 1/4-Mile 4-Button, 1-Way
3105v 4-Button, 1-Way 1500 Feet 4-Button, 1-Way
3203v 5-Button 2000 Feet 5-Button, 1-Way

Product history:

Viper 5706V thumbnail
(newest, current model)
Viper 5704 thumbnail
(previous model, replaced by Viper Responder LC3 5706V)
Viper 5702V thumbnail
(previous model, replaced by Viper Responder LC3 5704V)
Viper 5900 thumbnail
(previous model, replaced by Viper 5901 Responder LC3 (p/n 5702V))

Specifications & Details

General Features
Security System Type
Security with Remote Start
Car Alarm
Remote Start
Keyless Entry
2-way Paging
with 2-way paging
Number of Remotes
Number of Buttons on Primary Remote
Main Transmitter Type
Sidekick Remote Transmitter Type
LED/Display Color
Number of Vehicles Supported
Number of Auxiliary Outputs
PC Programmable
Convenient Features
Panic Mode
Trunk Release
Valet Mode
Alarm Features
Paging Range
1 Mile
Shock Sensor
Dual Zone Shock Sensor
Two-Way Paging Features
Transmitter Alert
Interior Thermometer
Remote Start Features
Cold Start Timer
Turbo Timer
Compatible with Diesel Engines
Engine Start Intervals
Compatible with Manual Transmissions
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Model Number:




Internal SKU:


Internal Product ID:


Product and How-to Videos

Customer Ratings & Reviews

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Customer Reviews

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This is one of the best on the market and the price is well worth it!!

By Tae on October 9, 2014


found this helpful.

Great alarm/remote start

I purchased the 5706V after a different remote start began to fail on me. I ordered it on Sunday and was here on Monday. One of the reasons I love Sonic Electronix. My installer deals only with Directed products so he had no problem installing this.

The remote start feature works great, I had the chance to test the range on it when we temporarily moved our employee parking to about a block and a half away. This is the first time having a 2-way LCD remote and I gotta say it's one of the greatest things to be implemented into alarm/remote start systems. You get confirmations for everything, you can change some settings on the remote including backlight color. I haven't had a chance to test the alarm feature and I hope I never have to. The only thing I don't like is that remote start run time is preset to 12 mins and I haven't found out if that can be changed. But I guess it's fine, I get an alert at 3 mins saying run time is low then another at 1 min. Pressing a function button followed by the start button resets it to 12 min again.
I'm impressed and pleased with the 5706v. I wish I had another 2-way remote for my spare keys but they're about $90, so I'll live with it.

By Mart on December 26, 2014


found this helpful.

One of the best remote start alarm systems on the market!!

Got it installed on my manual nissan skyline and works perfectly. The LC3 remote has an amazing range, i can pretty much switch on my car from about 800 meters inside buildings and even further when outside. Would recommend for anyone looking for a remote start alarm system!!

By Tinashe on September 13, 2014


found this helpful.

Viper alarm

Top of the line car alarm system. Should consider having it installed. Requires detailed knowledge of your specific car wiring to complete install. This probably should be mentioned as part of the sale. Other than that I'm satisfied with the system.

By Bill on October 15, 2014


found this helpful.

Okay product.

I've got it installed myself, and it works now. The remote looks pretty sexy. Having 2 way paging is great, since the remote will warn me when someone messes with my car. The siren is also pretty loud. Should scare most bad guys away.

It's great to be able to check the temperature with the remote. Love being able to start my car at the winter while I'm in the house drinking coffee. Also, remote starters aren't very common here in Europe, which had lead to some people looking at me with a very confused face while asking how I managed to start my car without being in it.

Unfortunately, there are a few things that I don't like too much about this system. The thermometer is a little inaccurate, showing around 5C too much. Also, the Status (gnd when running) output is a bit weak. Despite the load on it being less than the specified 200mA it sometimes failed to trigger, resulting in the bypass module not being triggered. I had to use a relay to reduce the load further.

The installation instructions that comes with it is kind of bad. All you get is a two-sided piece of paper with a pinout diagram and a list of the programmable features. For the rest they want you to go to their installer website that you need to bee an authorized DEI dealer to access. Which is kind of weird, because the earlier models came with a lot more instructions. Seems like they have done everything they can to prevent you from installing this yourself.

The next is the price. After I bought this product, I found some other remote start systems, which not only is way cheaper, but also has a more features, and also has built-in relays for features which this Viper alarm needs external relays.

Now that I've got this system installed in my car, I'm happy with it, and it does what it's supposed to do. But if I were to install a remote start system again, I'd go for something other than Viper.

By HAnilsen on January 28, 2015


found this helpful.

Great alarm

this alarm is great works well it would be better if it was alittle louder when you lock and unlock the car, but it gets the job done one of the best alarms.i recommend taking to get it installed at your local car stereo shop.

By calitrucks on December 11, 2014


found this helpful.

Good purchase

Alarm does exactly as advertised no complaints except hard to find good installer in houston

By Randy on October 14, 2014


found this helpful.

My favorite purchase so far

I love this starter/alarm. It works great, I showed friends an co-workers and they all want one. I wanted the alarm to protect my sound system, 2-way paging so I can sleep w/o consantly checking out the window for every noise ( I'm kinda paranoid, but I have quite a few friends that have had equipment stolen), and remote start because it gets cold. Everything works great and to top it off shortly after purchasing it the LCD remote failed to charge (fluke), the great guys at Sonic Electronix replaced it w/o hassle. I love the product and the costomer service can't be beaten!

By tobias on March 4, 2015


found this helpful.

Great purchase!!!

Had this installed by a local professional and it works great. Very satisfied with this purchase. Definitely buying from here again.

By Alonso on June 23, 2015


found this helpful.

Best system

This was a great price and top of the line love this product and it works great.

By Dustin on June 7, 2015 Checkmark Icon Verified purchase


found this helpful.


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5706V small

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Butt Connectors

100 Pack of 22/18 Gauge Red Butt Connectors



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Wire Crimper

2 in 1 Wire Quick Splice T-Tap Crimper and Wire Cutter



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