Viper 5901 Responder LC3 (p/n 5702V)

Viper 5901 (5704) Responder LC3 SST 2-way LCD Pager Car Alarm with 1-Mile Range and Remote Start

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• Responder LC3 SST 2-way LCD Pager Car Alarm with1-Mile Range and Remote Start
• Priority Icons for Simple and Clear Vehicle Monitoring
• SilentMode2
• DoubleGuard Shock Sensor
• Neo Revenger 6-tone siren
• 4 Auxiliary Channels

Learn more about the 5702v

Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

5706v thumbnail

Viper Responder LC3 5706V

OUR PRICE: $245.00

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Product Highlights

• Responder LC3 SST 2-way LCD Pager Car Alarm with1-Mile Range and Remote Start
• Priority Icons for Simple and Clear Vehicle Monitoring
• SilentMode2
• DoubleGuard Shock Sensor
• Neo Revenger 6-tone siren
• 4 Auxiliary Channels



Packed With Features:

The Viper 5901 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 5901 Features:

  • SST LCD remote transmitter
  • One mile range
  • Not sure which model is right for you? Click Here to compare different Viper models
  • Priority icons for simple and clear vehicle monitoring
  • Clear text labels on the large LCD screen
  • The important icon will display 3x larger than the less critical icons
  • Priority User Interface controls 24 functions with 5 buttons
  • Dual car support
  • Active Temp Check will display the current temperature inside of your vehicle (Displays in either Fahrenheit or Celsius)
  • Runtime Reset will extend your remote start run time
  • The 2-way transmitter will communicate by way of an audible tone, a vibration, or a visual alert
  • In case of an alert, the Revenger siren will play from the transmitter
  • SilentMode2 will send the alerts to the transmitter only and not set off the cars siren
  • The 2-way pager will notify whenever there is any activity with the vehicle, so you know exactly what is going on
  • Each mode is displayed on the LCD screen to remove any doubt of which mode you are in (for example: "Valet Mode" will appear when the car is set to valet mode)

Product Convenience Features:

  • XpressPort™ can dock the Innovations Award-winning CANMAX400DEI databus interface into the Responder LC3 CPU, for a direct digital connection to virtually every new vehicle and databus architecture on the planet
  • D2D Serial Data Port gives installers plug-and-play connection to all the other XPRESSKIT interfaces
  • Virtual Tach means no tachometer wire connection required
  • Flex Relays Onboard for remote start and light flash eliminates the need for additional relays the majority of the time
  • Control Center combines the Status LED and Valet Switch with the 2-way Antenna, making the switch easy to locate, and eliminating drilling of any holes in the dash
  • Includes SmartStart, Timer Start, Runtime Reset, TempCheck and Silent Mode2 siren-less arming modes
  • Compatible with manual transmissions
  • SuperCode encryption
  • Domelight supervision
  • Stinger DoubleGuard shock sensor
  • Neo Revenger 6-tone siren
  • Failsafe starter kill
  • Anti-Carjacking (VRS)
  • Guaranteed protection plan (GPP)
  • 4 Auxiliary channels for optional functions
  • Remote Control trunk pop
  • Compatible with Viper SmartStart Module (VSM100)
  • 1-year warranty

Replacement / Additional Remote Options:

Also found as: Viper-5901

Note: SmartStart does not function in Canada.

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
Smartphone Compatibility
GPS Tracking
Built-in Bypass Module
System Type
Replacement Remote Transmitter
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

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great product

you get the best when you buy the best, and this viper 5901 its top of the line. thank you sonic e my favorite on line store

By fidi on August 27, 2009


found this helpful.

Great alarm

This alarm is very good and for the price it even better. It work great in every aspect, only one think I don't like is that it don't come with. Shock sensor. That is the only problem I found. Thanks for this great alarm.

By narciso118 on June 23, 2011


found this helpful.

Good value

Is a good alarm, but they should work on transmitters, I can see images on mine.

By pancho on October 28, 2010


found this helpful.

my car is in my pocket!!

I love the viper 5901! Hooked it all up myself with tons of custom features like window roll-up and an mp3 siren! The remote works even when my car is in the underground garage from my 3rd story aptmnt. Wired a microwave proximity sensor that rolls the windows up with the warn away output and triggers the alarm on full output. My favorite feature is I can have the alarm on silent at the car but full vibrate beep etc on my key fob so I can actually catch someone before they get away!! I didnt get around to remote starting yet bc its a 5spd and havent had time to wire it all correctly but I will edit this review once its installed. regardless ***** and well worth the price for sure!

By tomas churizoe on March 29, 2012


found this helpful.


I have done several other alarms and remote starts, Crime Guards, Commandos, and Bulldog systems. And Viper is definitely not a simple install. In my opinion it has way to many options and accessories that i couldn't even find a reason to use. Other than to turn on heated mirrors and seats. I probably cut more than half the wires just because their not used. Directions can be confusing at times because one wire can be used 3 different ways depending how you set the programming options. Am happy with the range and 2 way pager. The blue LED is bright and visible, and the alarm features work great once tweaked. I recommend that you definitely do your homework before you tear into your car and find out what wires you actually need and tag 'em with tape on the unit and your car, i spent plenty of time going "now where does this wire need to go."

By the1nonlybanker on September 28, 2010


found this helpful.

I LOVE IT!!!!!!!!!!!!!

Purchased this for my TOYOTA 4RUNNER 2005 i love this alarm. Viper is my first and really works great. I vill buy again. Sonic Electronix you are doing a great job. Shipping in one day! Wow that's really great to me!!! I will recommend to all my friends. THANK YOU!!!!

By MILOS on May 28, 2012


found this helpful.

Best alarm system

This is a great alarm system to have it comes with two different controls in case you lose one.

By Flavio on November 5, 2011


found this helpful.

Great Alarm!!!!!!

Its a really good alarm it was kind of hard to install but it was worth it. my car is manual so i didint connect the auto start but all the other features work very good. and the price was really cheap iv seen the same alarm at the store and it costs three times as much.

The pros on this alarm is that you can install both a hood pin and the trunk pin and the range is very good also the two way remote is very cool and it has status report and temperature report and the battery lasts about a month. The cons it not sensitive i can shake the car tap on the window and it wont alert also the range is not bad but its no where near a mile

By Juan on August 9, 2011


found this helpful.

Viper 5901

Even though it was harder for the guys at the shop to install it in my car because I have a 2007 Cobalt, it is by far the best purchase I've ever done. Love the way auto-starter works very smoothly. Price was great. I would definitely recommend it.

By Rex the Teaser on November 4, 2010


found this helpful.

great value!

Great product! Awesome value. Would always do business with u guys again!

By Victor on October 27, 2013


found this helpful.


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