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Upgrading an older vehicle with keyless entry can significantly boost convenience and security. Whether you want a simple remote lock/unlock system or a comprehensive kit with multiple actuators, there are options suited to different needs. The Car Keyless Entry System offers a versatile, easy-to-install solution with features like remote trunk release. For those wanting a complete kit with high-range remotes and durable components, the Universal Car Power Door Lock Kit stands out. If you have a vehicle without power door locks, the Avital 2103L provides a straightforward, albeit more basic, upgrade. Finally, the InstallGear System delivers a universal fit with visual confirmation but may require more technical skill. Each choice balances features, ease of use, and compatibility, making the right pick depend on your vehicle and technical comfort level.

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Which keyless entry upgrade kit for older vehicle should you buy?
★ Top Pick
Car Keyless Entry System
Best Overall Versatile Upgrade
Easy installation with universal compatibility
See on Amazon →
Vehicle owners seeking a complete, durable, and high-range keyless entry upgrade
Universal Car Power Door Lock
Complete kit with all components included
View on Amazon →
Owners of older vehicles without power door locks seeking a simple upgrade
Avital 2103L Automotive Keyles
Includes two 4-button remotes for convenience
View on Amazon →
Owners seeking a flexible, easy-to-install upgrade with visual confirmation
InstallGear Keyless Entry Syst
Remote lock, unlock, and trunk functions included
View on Amazon →
Number of Items — compared
Universal Car Power Door Lock 5
InstallGear Keyless Entry Syst1
Pros & cons at a glance
Car Keyless Entry System
✓ Easy installation with universal compatibility
✗ Features may vary depending on vehicle model
Universal Car Power Door Lock
✓ Complete kit with all components included
✗ Installation may require technical skill
Avital 2103L Automotive Keyles
✓ Includes two 4-button remotes for convenience
✗ Requires professional installation
InstallGear Keyless Entry Syst
✓ Remote lock, unlock, and trunk functions included
✗ Installation may be complex for some users

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Key Takeaways

  • Universal compatibility varies, so verify your vehicle’s specifications before purchase.
  • Complete kits with multiple actuators and remotes tend to be more complex but offer more features.
  • Installation complexity ranges from simple plug-and-play to requiring professional wiring skills.
  • Range and additional features like trunk release or anti-theft alarms influence the overall value.
  • Durability and warranty are key for long-term reliability, especially in high-use vehicles.
2
Universal Car Power Door Lock
Best Complete Kit with Long-Range Control
1
Car Keyless Entry System
Best Overall Versatile Upgrade
3
Avital 2103L Automotive Keyles
Best for Vehicles Without Power Locks

Our Top Keyless Entry Upgrade Kit For Older Vehicles Picks

Car Keyless Entry System, Car Central Power Door Lock KitCar Keyless Entry System, Car Central Power Door Lock KitBest Overall Versatile UpgradeVoltage: 12VFeatures: Remote control, trunk release, automatic locking, car finding, window controlCompatibility: Universal for all 12V carsVIEW ON AMAZONSee Our Full Breakdown
Universal Car Power Door Lock Kit with 4 Actuators, 2 Remotes, and AccessoriesUniversal Car Power Door Lock Kit with 4 Actuators, 2 Remotes, and AccessoriesBest Complete Kit with Long-Range ControlBrand: HolwimModel Number: LOCK-0615Number of Items: 5VIEW ON AMAZONSee Our Full Breakdown
Avital 2103L Automotive Keyless Entry System with Two 4-Button RemotesAvital 2103L Automotive Keyless Entry System with Two 4-Button RemotesBest for Vehicles Without Power LocksBrand: AvitalModel Number: 2103LUPC: 044476160752VIEW ON AMAZONSee Our Full Breakdown
InstallGear Keyless Entry System with Two 3-Button Remotes and 4 Door ActuatorsInstallGear Keyless Entry System with Two 3-Button Remotes and 4 Door ActuatorsBest Universal and Easy-to-Install SystemBrand: InstallGearModel Number: IGCLSUPC: 789398416647VIEW ON AMAZONSee Our Full Breakdown
Specs at a glance
keyless entry upgrade kit for older vehicleCompatibilityBrandModel NumberNumber of Items
Car Keyless Entry SystemUniversal for all 12V cars———
Universal Car Power Door Lock Most cars, 2-door and 4-door modelsHolwimLOCK-06155
Avital 2103L Automotive KeylesVehicles without power door locksAvital2103L—
InstallGear Keyless Entry Syst—InstallGearIGCLS1

More Details on Our Top Picks

  1. Car Keyless Entry System, Car Central Power Door Lock Kit

    Car Keyless Entry System, Car Central Power Door Lock Kit

    Best Overall Versatile Upgrade

    View on Amazon

    This system excels for its universal compatibility with all 12V vehicles and its broad feature set, including remote lock/unlock, trunk release, and automatic locking. It stands out particularly for its ease of installation, making it accessible for many DIYers. However, the feature set can vary depending on the vehicle model, and some users report that installing window control modules can be complex. Compared to other options, it offers a solid balance of features without the need for extensive customization, though it may require additional modules for certain functions.

    Pros:
    • Easy installation with universal compatibility
    • Multiple convenience features like remote locking and trunk release
    • Automatic locking enhances security
    Cons:
    • Features may vary depending on vehicle model
    • Requires additional modules for some functions
    • Complex setup for some users

    Best for: DIY enthusiasts seeking a flexible, feature-rich upgrade

    Not ideal for: Owners of vehicles with specialized electrical systems or those wanting plug-and-play simplicity

    • Voltage:12V
    • Features:Remote control, trunk release, automatic locking, car finding, window control
    • Compatibility:Universal for all 12V cars
    Our verdict
    “A versatile, feature-rich system suitable for most 12V vehicles, best for DIYers comfortable with some wiring.”
  2. Universal Car Power Door Lock Kit with 4 Actuators, 2 Remotes, and Accessories

    Universal Car Power Door Lock Kit with 4 Actuators, 2 Remotes, and Accessories

    Best Complete Kit with Long-Range Control

    View on Amazon

    This package is ideal for those wanting a full, ready-to-install solution. It includes four actuators, two remotes with up to 80 meters range, and all necessary accessories. Its durability and long-range control make it a top choice for vehicles needing a reliable upgrade. The main tradeoff is that installation can be more involved, requiring some technical skill, especially when wiring multiple actuators. Compatibility is broad, but owners should confirm their vehicle’s specific wiring setup to avoid surprises. Compared to simpler systems, this kit offers comprehensive coverage and longer remote range, making it perfect for larger vehicles or those wanting robust security features.

    Pros:
    • Complete kit with all components included
    • Remote control range up to 80 meters
    • High-quality, durable components
    Cons:
    • Installation may require technical skill
    • Compatibility varies with some vehicle models

    Best for: Vehicle owners seeking a complete, durable, and high-range keyless entry upgrade

    Not ideal for: Less experienced DIYers or those with complex vehicle wiring that may require professional installation

    • Brand:Holwim
    • Model Number:LOCK-0615
    • Number of Items:5
    • Included:4 door lock actuators, 2 car keys, faraday bag, control box, wires, installation accessories, user manual
    • Warranty:1 year
    • Compatibility:Most cars, 2-door and 4-door models
    • Remote Control Range:50-80 meters
    • Motor Life Test:Over 100,000 cycles
    Our verdict
    “A comprehensive, long-range upgrade kit best suited for owners comfortable with wiring or seeking a full-featured security system.”
  3. Avital 2103L Automotive Keyless Entry System with Two 4-Button Remotes

    Avital 2103L Automotive Keyless Entry System with Two 4-Button Remotes

    Best for Vehicles Without Power Locks

    View on Amazon

    The Avital 2103L is designed specifically for vehicles lacking power door locks, offering a straightforward, one-way remote system. It includes two remotes, panic activation, and auxiliary outputs for extra functions like trunk release. Its simplicity makes it suitable for older models that don’t have integrated power locks, but the installation is recommended for professionals to avoid electrical damage. Compared to multi-way systems, it’s less feature-rich but delivers reliable basic control. The main limitations are the lack of remote start capability and a more complex installation process.

    Pros:
    • Includes two 4-button remotes for convenience
    • Offers panic mode and auxiliary outputs
    • Suitable for vehicles without power door locks
    Cons:
    • Requires professional installation
    • Limited to 1-way communication
    • Potential electrical damage if improperly installed

    Best for: Owners of older vehicles without power door locks seeking a simple upgrade

    Not ideal for: Those wanting remote start or advanced features or DIY installation

    • Brand:Avital
    • Model Number:2103L
    • UPC:044476160752
    • Item Weight:13.6 ounces
    • Item Type:Automotive Keyless Entry System
    • Number of Remotes:2
    • Warranty:Limited lifetime
    • Compatibility:Vehicles without power door locks
    • Installation Note:Intended for professional installation only
    Our verdict
    “A straightforward, reliable upgrade for older vehicles without power locks, best installed professionally.”
  4. InstallGear Keyless Entry System with Two 3-Button Remotes and 4 Door Actuators

    InstallGear Keyless Entry System with Two 3-Button Remotes and 4 Door Actuators

    Best Universal and Easy-to-Install System

    View on Amazon

    This universal system offers remote locking, unlocking, and trunk release for a wide range of vehicles, including trucks and SUVs. It comes with two 3-button remotes and four door actuators, providing a comprehensive upgrade with visual feedback through vehicle lights. While installation is straightforward for those with some wiring experience, some users report occasional connectivity issues, and compatibility isn’t guaranteed for very specific vehicle models. Its key advantage is broad fitment, but it may require patience during setup.

    Pros:
    • Remote lock, unlock, and trunk functions included
    • All necessary components for easy installation
    • Visual confirmation via vehicle lights
    Cons:
    • Installation may be complex for some users
    • Occasional connectivity problems reported
    • Compatibility may vary with specific models

    Best for: Owners seeking a flexible, easy-to-install upgrade with visual confirmation

    Not ideal for: Less technical users or those with very specific vehicle wiring systems

    • Brand:InstallGear
    • Model Number:IGCLS
    • UPC:789398416647
    • Number of Items:1
    Our verdict
    “A flexible, universally compatible system that balances ease of installation with some potential connectivity issues.”
keyless entry upgrade kit for older vehicles
What makes a great keyless entry upgrade kit for older vehicle
1
Compatibility and Vehicle Type
Before purchasing, confirm your vehicle’s electrical system and whether it already has power door locks.
2
Features and Functionality
Decide which features matter most: basic remote lock/unlock, trunk release, remote start, or additional security features like ant
3
Ease of Installation and Technical Skill
Some kits are designed for DIY installation with plug-and-play wiring, while others demand wiring knowledge or professional instal
How to choose your keyless entry upgrade kit for older vehicle
1
How we picked
Our selections are based on a combination of compatibility, ease of installation, feature sets, and user reviews.
2
Compatibility and Vehicle Type
Before purchasing, confirm your vehicle’s electrical system and whether it already has power door locks.
3
Features and Functionality
Decide which features matter most: basic remote lock/unlock, trunk release, remote start, or additional security feature
4
Ease of Installation and Technical Skill
Some kits are designed for DIY installation with plug-and-play wiring, while others demand wiring knowledge or professio
Vetted keyless entry upgrade kit for older vehicles ·
The best keyless entry upgrade kit for older vehicles, compared
★ Winner Car Keyless Entry System
Best Overall Versatile Upgrade
4compared
5top number of items
3compatibilitys

How We Picked

Our selections are based on a combination of compatibility, ease of installation, feature sets, and user reviews. We prioritized kits that offer comprehensive instructions or are known for straightforward DIY installation, especially since many owners of older vehicles prefer to upgrade without professional help. We compared remote range, included components, and added features like trunk release or alarm functions. Durability, warranty, and customer feedback played vital roles in assessing long-term value and reliability. Ultimately, these kits represent a balanced mix of affordability, performance, and ease of use tailored for older vehicles.

Feature comparison
keyless entry upgrade kit for older vehicleCompatibilityBrand
Car Keyless Entry SystemUniversal for all 12V cars—
Universal Car Power Door Lock Most cars, 2-door and 4-door modelsHolwim
Avital 2103L Automotive KeylesVehicles without power door locksAvital
InstallGear Keyless Entry Syst—InstallGear
Everyday → specialist
Everyday & valuePremium & specialist
Which keyless entry upgrade kit for older vehicle fits you?
The everyday user
All-round, reliable
The enthusiast
Premium & high-performance
The gift-giver
Looks & craftsmanship

Factors to Consider When Choosing Keyless Entry Upgrade Kit For Older Vehicles

Choosing the right keyless entry upgrade for an older vehicle depends on several factors: your vehicle’s existing electrical system, your DIY comfort level, desired features, and budget. Understanding these elements helps narrow down the options to the best fit. Whether you prefer a simple, professional-install-only system or a comprehensive kit with high-range remotes, the right choice can transform your vehicle’s convenience and security.

Compatibility and Vehicle Type

Before purchasing, confirm your vehicle’s electrical system and whether it already has power door locks. Some kits are universal and fit most 12V vehicles, while others are designed specifically for vehicles without existing power locks. Larger vehicles like trucks or SUVs may benefit from kits with higher remote range and multiple actuators, while smaller cars might do well with simpler systems.

Features and Functionality

Decide which features matter most: basic remote lock/unlock, trunk release, remote start, or additional security features like anti-theft alarms. A system with auxiliary outputs and multiple remotes offers more flexibility but might increase installation complexity. For vehicles without existing power locks, systems like the Avital 2103L provide essential functionality without unnecessary complexity.

Ease of Installation and Technical Skill

Some kits are designed for DIY installation with plug-and-play wiring, while others demand wiring knowledge or professional installation. If you are comfortable with basic wiring, a comprehensive kit like the Holwim or InstallGear options can be rewarding. For less technical users, simpler systems that come with detailed instructions or professional installation are better choices.

Budget and Long-term Value

Prices vary based on included features, range, and component durability. Investing in a more complete, durable kit might cost more upfront but can save money long-term by avoiding frequent replacements. Consider warranty and customer support as part of your value assessment, especially for complex installations.

Frequently Asked Questions

Can I install a keyless entry system myself?

Many keyless entry kits are designed for DIY installation, especially those with universal wiring and straightforward instructions. However, some systems, particularly those intended for vehicles without existing power locks or advanced features, may require electrical wiring skills or professional help. Always review the installation manual and consider your comfort level before attempting the upgrade yourself.

Will these kits work with my older vehicle?

Most of the kits reviewed are compatible with a wide range of older vehicles, especially if they are 12V and have basic electrical access. It’s crucial to verify your vehicle’s wiring and existing features, such as whether it already has power door locks. Universal kits like InstallGear are designed to fit many models but double-check compatibility to avoid surprises.

What features should I prioritize in a keyless entry upgrade?

Your priorities depend on your vehicle and needs. If security is a concern, look for systems with automatic locking and alarm features. For convenience, remote trunk release and long-range remotes are valuable. Consider whether you want additional functions like window control or auxiliary outputs, especially if your vehicle can support them without extensive modifications.

Are professional installation services necessary?

While many kits can be installed DIY, some, like the Avital 2103L, recommend professional installation to prevent electrical issues or damage. If you lack wiring experience, hiring a technician can ensure your system functions correctly and reliably. For simpler kits, however, careful following of instructions often suffices for confident at-home setup.

How reliable are these remote control ranges?

Remote control range varies among products, with the Holwim kit offering up to 80 meters and others providing around 50 meters. Factors such as obstacles, interference, and vehicle model can affect range. Longer-range remotes are especially useful if you park your vehicle at a distance, but ensure your chosen kit’s typical range matches your needs.

Conclusion

For owners comfortable with wiring and seeking a versatile, feature-rich upgrade, the Car Keyless Entry System offers excellent value. If you want a complete, durable system with high remote range, the Holwim Kit is a solid choice, especially for larger vehicles. Those with basic needs or limited technical skills should consider the Avital 2103L, particularly if their vehicle lacks power locks. Lastly, for universal fit and straightforward installation, the InstallGear System provides a practical middle ground, though it may require some troubleshooting. Your specific vehicle type, technical comfort, and desired features will determine the best fit among these options.

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