What a remote auto start kit does
A remote auto start kit lets you start your car's engine from outside the vehicle using a wireless remote control or a smartphone app. When you press the button or tap the app, a module installed in your car sends a signal to the starter motor, turning on the engine without you being inside. The car runs until you turn it off remotely, reach it and turn it off manually, or until a timer shuts it down—usually after 10 to 20 minutes.
Remote starters are most useful in cold climates, where you can warm up the engine and cabin before driving, or in hot weather, where you can cool down the interior. Some systems also let you lock and unlock doors, pop the trunk, or control the climate from a distance.
Key Takeaways
- Remote auto start kits range from around $150 to $500 for the parts, plus $200 to $800 for professional installation, depending on your car's make and model.
- Installation requires wiring into your car's electrical system and steering column, so most people hire a professional rather than doing it themselves.
- Your car's transmission must be in Park (automatic) or Neutral with the parking brake set (manual) for the system to start the engine safely.
- Some insurance companies offer small discounts for remote starters because they reduce theft risk, though you should confirm with your provider.
- Aftermarket systems may not work with newer cars that have push-button ignition or advanced security features without additional modules.
How installation works and what it costs
Installation involves running wires from a control module to your car's ignition system, starter, and parking brake. A technician will also connect the module to your car's power supply and ground, then program it to recognize your vehicle's specific electrical setup. The whole process usually takes two to four hours at a car alarm shop, car stereo installer, or dealership service department.
Parts alone cost between $150 and $500, depending on the brand and features. Professional installation adds $200 to $800 on top of that. Luxury vehicles, trucks with complex electrical systems, and cars with push-button start typically cost more because the wiring is more involved. Some dealerships offer factory remote start systems during purchase or as an add-on, which may cost more but are designed specifically for your model.
Before you pay, ask the installer whether your car's make and model is compatible. Newer vehicles with keyless ignition systems sometimes need extra modules or may not work with standard aftermarket kits at all.
Safety features that prevent accidental starting
Remote starters include built-in safety locks to prevent the engine from starting while you're driving or if the transmission is not in the correct position. On automatic transmissions, the system will only start if the car is in Park. On manual transmissions, the parking brake must be engaged and the clutch pedal must be in the neutral position.
Most systems also require you to press the brake pedal within a set time after remote starting—usually 30 seconds to a few minutes—to shift out of Park and drive away. If you don't press the brake, the engine shuts down automatically. This prevents the car from rolling if you accidentally remote-start it while parked on a slope or if someone else starts it without your knowledge.
Some higher-end kits include immobilizer integration, which means the engine will only start if your key fob is within range or if you've entered a PIN code. This adds a layer of security against theft.
Compatibility with different car types
Remote starters work with most vehicles made in the last 20 years, but compatibility depends on your car's ignition system and electrical architecture. Cars with traditional key-turn ignition are usually the easiest to retrofit. Vehicles with push-button start or keyless entry systems often require additional modules or may not be compatible with standard aftermarket kits.
Luxury brands like BMW, Mercedes, and Audi sometimes have proprietary security systems that block aftermarket remote starters unless the installer uses brand-specific modules, which cost more. Hybrid and electric vehicles have different starting procedures, so you'll need a kit designed for that powertrain type. Always ask the installer to confirm compatibility before paying a deposit.
If your car is very new or has advanced driver-information systems, the dealership may be your only option, since they have access to the manufacturer's technical specifications and can may support the remote starter doesn't interfere with other electronic systems.
Insurance and theft prevention
Some insurance companies offer discounts of 5 to 15 percent on comprehensive coverage (which covers theft) if you have a remote starter installed, because the system can deter thieves and make it harder for them to steal your car undetected. However, discounts vary by insurer and by state, and not all companies offer them. Contact your insurance agent before installation to ask whether you may have access to and what documentation they need.
The discount usually requires that the system be professionally installed and registered with your insurer. Some companies want proof of installation, such as a receipt from the shop. If you remove the system later, notify your insurer so they can adjust your rate.
Keep in mind that a remote starter alone does not prevent theft—it only makes it slightly less attractive to a thief. Combining it with other security measures, such as a steering wheel lock, GPS tracker, or parking in a well-lit area, is more effective.
Smartphone apps versus traditional remote controls
Older remote starter kits use a dedicated wireless remote control that looks like a car key fob. Newer systems let you start your car using a smartphone app over cellular data or Bluetooth, which means you can start your car from anywhere with a signal—even from inside your house or while you're at work.
Smartphone-based systems typically cost more than traditional remotes and may require a monthly subscription fee ($3 to $15 per month) to use the app features. Some systems offer both options: a physical remote as a backup and an app as the primary control method. Before you choose, consider whether you'll actually use the app feature and whether the subscription cost is worth it to you.
Smartphone systems also depend on your phone's battery and your cellular or Bluetooth connection. If your phone dies or you lose signal, you won't be able to start your car remotely. Traditional remotes have a limited range (usually 500 feet to a quarter mile) but don't require a subscription or internet connection.
Maintenance and troubleshooting
Remote starters require very little maintenance once installed. The main thing is to replace the batteries in your remote control every one to two years, or when the range starts to decrease. Some systems alert you when the battery is low.
If your remote stops working, first try replacing the battery. If that doesn't help, the remote may need to be reprogrammed to your car's module—most installers can do this in a few minutes. If the engine won't start remotely but starts normally with your key, the problem is usually a loose wire or a blown fuse in the installation, which a technician can diagnose and repair.
In very cold weather, remote starters sometimes fail to engage if the engine is too stiff to turn over. This is not a problem with the kit itself; it's a limitation of the starter motor. Letting the car sit in a garage or using a block heater can help.
Frequently Asked Questions
Will a remote starter void my car's warranty?
Factory remote starters installed by the dealership will not void your warranty. Aftermarket kits may void the warranty on electrical or engine components if the installation damages them, but only the parts directly affected by the installation—not the entire vehicle. Ask your dealership in writing whether an aftermarket remote starter will affect your specific warranty before installation.
Can I install a remote starter myself?
It is technically possible if you have electrical knowledge and the right tools, but most people hire a professional because the wiring is complex and mistakes can damage your car's electrical system or create a fire hazard. A professional installation also usually comes with a warranty on the work.
Does a remote starter drain my car's battery?
A remote starter draws a small amount of power from your battery when the car is off, but modern systems are designed to use very little current. If your battery is in good condition, you should not notice any difference. If your car sits unused for weeks, the remote starter module may contribute to a slow drain, but this is rarely the sole cause of a dead battery.
What happens if I remote-start my car and then lose the remote?
The engine will shut down automatically after the timer runs out, usually 10 to 20 minutes. You can also turn it off by pressing the brake pedal or turning the key in the ignition. You won't be locked out of your car.
Can I use a remote starter on a car I'm financing or leasing?
You can install an aftermarket remote starter on a financed car, but check your loan agreement first—some lenders restrict modifications. On a leased car, you typically cannot install aftermarket equipment without the leasing company's permission, and they may charge you to remove it at the end of the lease. Ask your lender or leasing company before proceeding.