Adding Keyless Entry to Car
Electric System

Adding Keyless Entry to Car

Having a keyless entry system on your car can be incredibly convenient. With keyless entry, you can unlock your vehicle quickly and securely without fumbling around for keys. Furthermore, keyless entry systems make adding features such as remote start and security alarms easy. Consider installing a keyless entry system if you want a simple method to modernize your car. In this article, we’ll explain how to install and program a keyless entry system in your vehicle to enjoy all the benefits of modern convenience without paying the high cost of dealer installation. You’ll learn what components are needed for a successful installation, step-by-step instructions on installing the components, and tips on programming them. With this knowledge, you’ll be confident to upgrade while saving time and money.

What Is Keyless Entry in a Car?

Keyless entry in certain cars lets the driver unlock and start the engine without a traditional key. This technology often uses a device such as an electronic key fob, which can be detected by a receiver on the car and send out an encrypted signal. When this signal is received, it triggers a release mechanism in the car’s door lock, allowing it to be opened. In some models, this same signal can also be used to start the car’s engine without inserting any key into an ignition switch. This technology has become increasingly popular as it offers convenience and security for drivers who want to avoid constantly carrying around or losing their keys. Keyless entry also provides added security compared to traditional keys since they require proximity and authentication before vehicle access.

Benefits of Keyless Entry

Adding Keyless Entry to CarHaving a keyless entry system on your car offers numerous advantages. The most obvious is convenience since you no longer must fumble around for your keys or worry about losing them. Keyless entry also adds security, as the system can be programmed only to allow certain users access to the vehicle, making it harder for thieves and other unauthorized individuals to gain access. Keyless entry systems typically have features such as remote start and security alarms that can be easily installed into most modern vehicles. With these features, you’ll have more control over your car’s security and settings without making any major changes or modifications.

Required Parts and Tools

Before installing a keyless entry system, you’ll need the right parts and tools. The required tools and parts for installation differ based on your vehicle’s make, model, and year. In general, you will need a keyless entry system that is compatible with your car, wiring harnesses for power and speaker connections, an antenna amplifier (if needed), mounting brackets for the control unit, various hardware components for mounting the device in the dashboard/console area of your car, wire cutters/strippers/crimpers to connect wires together, a drill or screwdriver to install mounting hardware in plastic or metal panels as well as a few other basic hand tools such as pliers or tweezers.

Step-by-step Installation Instructions

Installing a keyless entry system in your vehicle can be done with some basic knowledge of electronics and tools. Before beginning installation, you should carefully read the manufacturer’s instructions to know exactly what needs to be done from start to finish. However, there are eight steps required for most installations:

  1. Disconnect the negative terminal from the car battery before going any further – this will prevent any accidental shorts while working on electronic components.

  2. Assemble all necessary components according to instructions, including connecting wires from amplifiers or speakers if needed.

  3. Securely mount the control unit near the steering column using the provided brackets.

  4. Run wiring harnesses according to instructions – this includes power wires from the battery (positive) directly into the control unit and speaker wires if included.

  5. Connect the antenna amplifier (if included) according to instructions – this will boost signal strength between the key fob and receiver in the car.

  6. Install remaining components, such as door lock actuators and trunk release solenoid (if included).

  7. Program the key fob to the system using instructions provided by the manufacturer – this is typically done by pressing specific buttons in a certain order.

  8. Reconnect the negative terminal on the car battery to complete the installation process.

Troubleshooting Tips for Common Issues

Try a few troubleshooting tips if you’re having trouble with your keyless entry system. If the system isn’t responding to your key fob, check the battery in both the fob and control unit to ensure they have enough power. Also, read about the Best Group 65 Battery to ensure optimal performance for your vehicle’s electronics. Additionally, make sure that all wires are securely connected in their proper place and that none of them have come loose or are broken. Another common issue is a weak signal between the fob and control unit – this can be remedied by adjusting the antenna amplifier’s sensitivity level or replacing it with a stronger one if needed. Finally, always double-check all connections before moving on to ensure everything is properly installed and working correctly.


Adding a keyless entry system to your car is a great way to modernize it and enjoy the convenience of easy access with no keys. With the proper parts and tools, it’s possible to install this feature without paying a high cost for professional installation. Following the step-by-step instructions above, you can quickly add keyless entry to your vehicle. Furthermore, suppose you have issues with installation or programming. In that case, there are troubleshooting tips you can use, as well as resources available online for guidance on specific makes and models. With this guide, you can upgrade your vehicle in no time while saving money!