Can you add remote start to an existing key fob?
Yes—it's often possible to add remote start to an existing key fob, either through a dealer-enabled OEM option or an aftermarket retrofit, but compatibility depends on your car and it can affect warranties and safety requirements.
Remote start lets you start your engine remotely, usually to warm up or cool down the interior before you enter. Modern vehicles with advanced security systems require careful integration, and availability or viability varies by make, model, and year. This article outlines common routes, considerations, and steps to take if you’re thinking about adding remote start to a car that didn’t originally include it with the factory key fob.
Options to add remote start
Here are the main avenues people pursue to enable remote start on a vehicle that didn’t come with it from the factory.
- OEM factory remote start (dealer-enabled): Some brands offer remote start as a factory option that can be activated by a dealer. This can preserve the original security system and use the existing key fob once enabled, though it may come with higher costs and specific warranty considerations.
- Aftermarket remote start kits designed to work with your current key fob: Reputable aftermarket systems (from brands like Compustar, Viper, and Clifford) can often be configured to respond to your existing fob or to a dedicated remote. Installation typically requires professional setup to integrate with the vehicle’s security and ignition systems.
- Smartphone app-based options (where available): Some vehicles offer remote start via an official app. This can complement or replace fob-based start, depending on the model and trim, and may be used in place of, or alongside, a fob retrofit.
Concluding paragraph: OEM activation tends to offer the most seamless integration and warranty alignment, while aftermarket kits provide broader model coverage but require careful installation and consideration of warranty terms; apps can serve as convenient alternatives where supported.
Important considerations
Before deciding to retrofit remote start, assess key factors that affect compatibility, safety, and ownership terms.
- Vehicle compatibility and immobilizer integration: Modern cars use immobilizers and security networks. Retrofit solutions must be designed to work with these systems; not every model is compatible, especially newer or highly secured ones.
- Safety and operation rules: Remote start systems typically require the car to be in Park, doors closed, and other safety checks to be met. For manual transmissions, many manufacturers either restrict or advise against remote starting due to safety risks.
- Warranty and insurance: Aftermarket installations can affect warranty coverage and, in some cases, insurance terms. Confirm with the dealer and your insurer, and insist on a certified installer with a warranty on parts and labor.
- Cost and reliability: OEM activation usually costs more but feels more integrated and reliable with factory support; aftermarket kits vary in price and may require updates as vehicle software evolves.
Concluding paragraph: If you pursue a retrofit, choose a reputable installer and clearly understand compatibility, warranty implications, and ongoing maintenance needs before proceeding.
What to do next
Practical steps to take as you explore adding remote start to your vehicle.
- Check your vehicle’s compatibility and official options: Ask the manufacturer or a trusted dealer whether remote start can be enabled via the fob and what the exact activation process would be.
- Obtain quotes and warranty terms: Compare OEM activation versus aftermarket installations, including what is covered under warranty and for how long.
- Choose a qualified installer: Look for technicians with experience on your model and with reputable brands; verify certifications, read reviews, and ask about the installation process and post-install support.
Concluding paragraph: A professional, certified installation helps ensure proper integration with your vehicle’s security and safety features and reduces risk of warranty or electrical issues.
Summary
Bottom line: Adding remote start to a car that didn’t originally include it with the factory fob is commonly possible, but it hinges on model-year compatibility, security system design, and warranty considerations. OEM activation offers the smoothest path with factory-level support, while aftermarket retrofits can broaden options for different vehicles—albeit with varying installation quality and warranty terms. Always consult a certified professional to determine the best option for your specific vehicle and to ensure safe, reliable operation.
Can I add remote start to my key fob?
The answer is yes. However, whether you can install a remote start system depends on your vehicle's make, model, and existing electronics.
Can you add remote start to a vehicle that doesn't have it?
If your car doesn't have this feature already, an aftermarket remote start system can usually be installed. In some cases, a dealer can install or activate an OEM system too. Aftermarket options often offer more features, such as longer range and smartphone connectivity – although many OEM systems have apps also.
How much does it cost to put a remote start in your car?
The cost to install a remote start in a car typically ranges from $150 to $500, depending on the complexity of the vehicle and the system chosen. This price includes the cost of the remote start kit, which can be anywhere from $50 to over $200, and professional labor, which usually runs from $75 to $200. Factors like the vehicle's make and model, whether it has a keyless entry or immobilizer system, and the type of remote system (like a smartphone-controlled one) can increase the final price.
Factors that influence the cost
- Vehicle's electrical system: The complexity of your car's wiring and security system is a major factor. Newer, luxury, or European cars often require more expensive bypass modules to integrate the remote start with the factory immobilizer, which can significantly increase the total cost.
- Remote start system type:
- Basic kits: These are the least expensive options.
- Advanced kits: Systems that include smartphone control, two-way remotes, or longer range functionality will cost more.
- Installation complexity:
- Labor costs: Expect to pay anywhere from $75 to $200 for professional installation, which varies based on the shop and the time it takes.
- Bypass modules: Many modern cars require a bypass module to work with the factory anti-theft system. These can add $50 to $100 or more to the total price, especially for more complex luxury vehicles.
- Vehicle-specific needs: Cars with manual transmissions may require more complex installation and higher costs.
Where to get it installed
- Car audio and security shops: These specialists have the expertise for installing these systems correctly, ensuring your vehicle's electrical system is not damaged and the security remains intact.
- DIY: While possible, this is not recommended for most people due to the complexity of vehicle wiring and the need for a bypass module. Improper installation can void your warranty or compromise your vehicle's security.
How to program a key fob for remote start?
To program a remote start key fob, you'll need to perform a specific, vehicle-dependent procedure, which often involves cycling the ignition on and off multiple times while pressing certain buttons on the fob or using the vehicle's door lock switch. For some vehicles, this can be done at home by following the steps in the owner's manual or a repair guide; however, many systems, especially aftermarket ones, require a professional with specialized equipment, such as a locksmith or dealership.
Self-programming method (varies by vehicle)
This video demonstrates the self-programming method for a remote start key fob: 58sSummit Auto ReviewsYouTube · Jan 24, 2021
- Prepare the vehicle: Close all doors, get inside, and insert the key into the ignition.
- Enter programming mode:
- For key-start vehicles, turn the ignition from OFF to ON multiple times (the exact number varies). For example, a common sequence is to turn it on and off five times within 10 seconds, leaving it ON on the fifth time.
- For push-to-start vehicles, you may need to press the start button to the ON position, then cycle it OFF, ON, OFF, ON, OFF, ON.
- The vehicle should respond with a beep, a click, or a light flash to indicate it's in programming mode.
- Program the fob:
- Press and hold a specific button (like LOCK or LOCK and UNLOCK) on the key fob you want to program.
- The vehicle should respond, often with a click, chirp, or flashing lights, to confirm the fob is programmed.
- Program additional fobs: Repeat the programming step for any other remotes you need to program.
- Exit programming mode: Turn the ignition switch to the RUN or OFF position to exit the programming sequence.
- Test the fobs: Make sure all the buttons on your fobs are working correctly.
When to call a professional
This video explains when it is best to consult a professional for key fob programming: 55sLessco ElectronicsYouTube · Dec 24, 2014
- Aftermarket systems: Aftermarket remote start systems, such as Compustar or Viper, often have their own specific programming procedures and may require a special switch or wire connection to be accessed under the dashboard.
- Complex vehicles: Some modern vehicles may require a dealership or a professional locksmith to program a new remote or remote start system, especially if it involves transponder keys or other security features.
- DIY failure: If the self-programming method doesn't work after trying the correct sequence from your owner's manual, you may need professional help.
