Avital 5303L

Car Alarm Remote Start and Keyless Entry Vehicle Security System w/ 2-way LCD Remote

Shop all Avital

• Active and passive arming
• Silent, valet and panic mode
• Valet take-over
• Short-run/turbo timer
• Starter anti-grind circuitry
• Dual zone shock sensor

Learn more about the 5303l

We apologize

This item has been discontinued


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!

Remote Start Car Alarm

Remote Start

Allows a vehicles engine to activate 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.

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.


5303L Features

  • Remote Start Security System with Keyless Entry
  • Not sure which model is right for you? Click Here To compare different Avital models
  • Includes one LCD remote and one 4-button remote
  • Active and passive arming
  • Multi-level security arming allows you to select which of the inputs or sensors will be active and which will be bypassed
  • Silent mode to temporarily turn off the arm or disarm chips
  • Panic mode will sound alarm and flash your parking lights
  • Valet mode will not arm the security system with the remote transmitter
  • Remote start feature allows you to remotely start and run your vehicle for a period of time
  • Valet take-over allows the vehicle to remain running after the key has been removed from the ignition
  • Short-run/turbo keeps the engine running for 1, 3, 5, or 10 minutes
  • Starter anti-grind circuitry
  • Dual zone shock sensor
  • 1-year warranty

Replacement / Additional Remote Options:

Avital Model Comparison Chart

Model Security Remote Start Keyless Entry 2-Way Main Remote Type Range Secondary Remote Channels Trunk Pop
5303L LCD Screen 1500 Feet 4-Button, 1-Way 4
5103L 4-Button, 1-Way 1500 Feet 4-Button, 1-Way 4
4113L/4113LXL Unlock ONLY 1-Button 1500 Feet 1-Button N/A
4111L Unlock ONLY 1-Button 1500 Feet N/A N/A
4103LX/4103LXL 4-Button, 1-Way 1500 Feet 4-Button, 1-Way 2
4003L N/A N/A N/A N/A
Also Found As: Avital 5303L

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
PC Programmable
Smartphone Compatibility
Professional Installation Recommended
Replacement Remote Transmitter
Optional (Accessory required and sold separately
Convenient Features
Panic Mode
Trunk Release
Valet Mode
Alarm Features
Shock Sensor
Remote Start Features
Cold Start Timer
Turbo Timer
Compatible with Diesel Engines
Engine Start Intervals
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:


Customer Ratings & Reviews

5 star
4 star
3 star
2 star
1 star


Customer Reviews

Sort by:


Great Value

I recommend this product, it is really good and excellent protection for your car...

By Ulises on September 17, 2013


found this helpful.

Great Value

I do alarms since 1980 all time Viper Brand same company as Avital Directed.

By Chiquitin. on August 8, 2013


found this helpful.

Absolute best remote start out there for the best value

I absolutely love this remote start and will recommend it to anyone. I have installed over 10 of these personally and I have yet to run across any problems whatsoever. Flawless operation as long as you know what you are doing while installing it. Can't find a cheaper price from any other reputable dealer other than here unless you are able to get it for cost straight from DEI. Sonic has been great in the past and continues to do so. Thank you.

By Eric on January 26, 2012


found this helpful.

works perfect

I got good deal on this older Viper and its been great for me. Had no problem to install and it works great. Only i would suggest to get leather casing so remote don't get scratches.

By Nicky on December 24, 2012


found this helpful.

Works Great

Had this installed on my Dodge Ram before I moved to KC and had it for over a month works great and has a great range on it for remote start and the two way paging system. Has Plenty of extra features that I like as well and I also changed out the red security light for a blue one was easy.

By MJ on August 15, 2013


found this helpful.

good alarm

Works good i will order again next time.

By (808)neils_garage on January 26, 2012


found this helpful.


my boy got this from 6** A** and cost him 350 bucks found the same for 119 bucks big different and i like it could sleep at night not worrying about ppl trying to break into my car again its nice its cheap its a good brand i have it on my 97 civic i say cope it if u afraid to get Ur car stolen not a fun filling

By Kam on February 25, 2011


found this helpful.


I will never waste my money on one again. It's dumb, it randomly starts my truck one night it started six times and has done this from day one. It's not the first system I have owned but it's the last of this brand.

By sliver on June 10, 2012


found this helpful.

great product

I am an auto technician and i offer this particular avital model to all my customer. I myself use this product and have been for years. Thank you.

By sammy on July 24, 2011


found this helpful.

Avital 5303

I purchased the Avital 5303 (a little over 100 dollars) for my wife's 07 Dodge Ram 1500. Purchased this alarm based on its features and 2 way remote system. The alarm was installed professionally. The installation cost was 3 times the amount of the alarm itself. After the installation, everything worked fine. Avital is a DEI product. Know that if you want the remote start feature to work you must purchase a separate module that costs 100 dollars. She is pleased with the alarm. I will recommend the Avital 5303 for its feature set and it's cost. Thanks for reading.

By Nickname on September 17, 2014


found this helpful.


Similar Products

Best selling similar products

Viper 5305V

• Buttons: Arm, Disarm, Auxiliary, and Panic
• Stinger® DoubleGuard® Shock Sensor: chirps when the vehicle's bumped and sets off the alarm with further violations
• Neo Revenger® 6-Tone Siren: 120 dB weatherproof siren
• Failsafe® Starter Kill: Prevents hot-wiring with anti-carjacking protection
• Horn honk, dome light supervision, and parking light flash


Viper Responder 350 3305V

• Includes a Main and Sidekick Remote
• Clone-Safe Code-Hopping Technology
• 1,500 Feet of Transmitter Rnge
• DoubleGuard Shock Sensor
• Revenger Six-Tone Siren



Viper 3100V

•11-Way Keyless Entry Car Alarm
• 3-button transmitter


Crimestopper SP-302

• 2-Way FM Paging Alarm/keyless Entry System
• Enhanced White and Red LED Backlighting
• Electronic Dual-Stage Shock Protection
• DPPI Technology: 2-Way Data Port Allows for Direct Plug-in Data Modules



Viper 3105V

• FailSafe Starter Kill
• Stinger Double-Guard Shock Sensor Detects Tempering
• Panic Mode - Call for Attention by Triggering Alarm



Related Searches

5303 small

Item added to your cart.

Price: $119.99

Essential add-ons
Directed 528T

12V Accessory Pulse Timer



Add to cart
Butt Connectors

100 Pack of 22/18 Gauge Red Butt Connectors



Add to cart
Wire Crimper

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



Add to cart
Save up to 10 different vehicles in your garage

Add vehicle
Identify your vehicle and submodel details
  • Owner’s manual
  • Vehicle’s insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver’s side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon