What a remote car starter does
A remote car starter is a device that lets you start your car's engine from outside the vehicle, usually from 50 to 1,000 feet away depending on the model. You press a button on a key fob or use your phone, and the engine turns on. The car warms up or cools down while you walk to it, so you get in when the temperature inside is already comfortable.
Remote starters are different from keyless entry systems. Keyless entry unlocks your doors; a remote starter actually fires up the engine. Some systems do both, but they are separate functions. The starter is wired into your car's ignition and electrical system, so it requires professional installation in most cases.
Key Takeaways
- Remote car starters turn on your engine from a distance, warming or cooling the interior before you arrive at the vehicle.
- Installation costs range widely depending on your car's make and model, from a few hundred dollars to over $1,000 for luxury or newer vehicles.
- Your car's transmission must be in Park (automatic) or Neutral (manual) for the starter to work, and it will not turn on if the door is unlocked or the hood is open.
- Most remote starters have a runtime limit — usually 10 to 20 minutes — after which the engine shuts off automatically to save fuel.
- Aftermarket starters void some manufacturer warranties, so check your owner's manual or contact your dealer before installation.
How installation works and what it costs
Installation requires running wires from the starter module to your car's ignition system, battery, and door locks. A professional installer opens your steering column and dashboard, connects the wires to the right terminals, and programs the fob to communicate with the module. The whole job usually takes two to four hours.
Cost depends on your vehicle. A straightforward sedan might run $300 to $600 for parts and labor. Luxury cars, trucks with push-button starts, or vehicles with complex security systems can cost $800 to $1,500 or more. Some dealerships offer factory remote starters as an option when you buy the car, which is usually more expensive than aftermarket installation but comes with a warranty.
You can buy the system yourself and bring it to an installer, or have the installer source the parts. Bringing your own parts sometimes saves money, but the installer may not warranty the work if something goes wrong. Ask about the warranty on both parts and labor before you commit.
Safety features that prevent theft and accidents
Remote starters have built-in safeguards so the car does not start in dangerous situations. The engine will not turn on if the transmission is not in Park (automatic) or Neutral (manual), because starting a car in Drive or Reverse could cause it to roll. Most systems also require the door to be locked and the hood to be closed.
The fob uses encrypted signals so someone cannot randomly start your car by guessing the frequency. Each fob is coded to its specific receiver module, and the signal changes each time you press the button. This rolling code technology makes it extremely difficult for thieves to intercept and replay the signal.
Some systems include a panic button that honks the horn and flashes the lights if you feel unsafe approaching your car. Others let you set a PIN code so the car will not start unless you enter it on the fob within a certain time window after the remote start command.
Runtime limits and fuel consumption
Most remote starters shut off the engine automatically after 10 to 20 minutes if you do not get in the car. This is a safety feature — it prevents the engine from running unattended for hours, which wastes fuel and can overheat the engine. You can usually adjust the runtime in the system settings, or buy a fob with a longer timer if you need more warm-up time.
Running the engine while parked uses fuel. A typical car burns about one-tenth of a gallon per hour at idle. If you start your car every morning for 15 minutes before work, that adds up to roughly 1.5 gallons per week. The fuel cost is usually small compared to the comfort of getting into a warm car, but it is worth factoring in if you are on a tight budget.
Compatibility with your car's make and model
Remote starters work with most cars, but some vehicles are harder to install than others. Older cars with straightforward ignition systems are straightforward. Newer cars with push-button starts, keyless ignition, or complex security systems require more specialized wiring and programming, which raises the cost and sometimes limits what features are available.
Manual transmissions are compatible with remote starters, but the system must be programmed to recognize that the car is in Neutral before it will start. Some older manuals or rare models may not have a compatible starter on the market, so check with an installer before you buy the car or commit to the upgrade.
Hybrid and electric vehicles have different electrical systems. Some hybrids work fine with aftermarket starters; others do not. Electric vehicles rarely need remote starters because they can warm up the cabin using stored battery power without running an engine. Ask your dealer or a specialist installer whether a remote starter is even worth considering for your specific vehicle.
Warranty and insurance considerations
Installing an aftermarket remote starter may void your manufacturer's warranty on certain electrical or engine components. Read your owner's manual or call your dealer's service department to ask which systems are affected. Some dealers will honor the warranty as long as the installation was done professionally and did not cause the problem you are claiming.
Your insurance company does not usually charge more for a remote starter, and some insurers offer small discounts for anti-theft features. Tell your agent about the installation so they have accurate information on file. If the system malfunctions and causes engine damage, your warranty claim will depend on whether the installer or the manufacturer is responsible — this is why choosing a reputable installer matters.
Alternatives if a remote starter is not right for you
If the cost or complexity of a remote starter does not appeal to you, other options exist. A straightforward engine block heater plugs into a household outlet and warms the engine coolant before you start the car. It costs $50 to $200 and uses very little electricity, but you have to plug it in the night before and remember to unplug it before driving. It works well in cold climates but does not cool the interior in summer.
Smartphone apps that come with some newer cars let you start the engine through the manufacturer's app, though this feature is usually only available on luxury brands and costs extra. Some aftermarket remote starters also offer smartphone control as an upgrade. Seat warmers and steering wheel heaters are cheaper than a full remote starter and warm you up faster than waiting for the engine to heat the cabin.
Frequently Asked Questions
Will a remote starter drain my car battery?
A remote starter draws power from your battery when the engine is off, but the drain is minimal — usually less than what your car's computer and alarm system use overnight. If your battery is already weak or old, the extra draw might be noticeable. A healthy battery should have no problem, but if you park for weeks without driving, you may want to disconnect the system or use a battery tender.
Can I install a remote starter myself?
Installation requires wiring into your car's ignition system and electrical harness, which is risky if you are not experienced with automotive electronics. A mistake can damage your car's computer, disable the ignition, or create a fire hazard. Professional installation is strongly recommended. If you are handy with cars, some simpler aftermarket kits come with detailed instructions, but most people should hire a shop.
Does a remote starter work if my car is locked?
Yes. The remote starter and door locks are separate systems. Your car can be locked and the engine will still start. In fact, most systems require the doors to be locked as a safety feature — the engine will not turn on if any door is unlocked, because that could mean someone is trying to steal the car.
What happens if I lose my remote starter fob?
You can still start your car normally with your regular key or keyless entry. You will need to contact the installer or the system manufacturer to order a replacement fob, which usually costs $50 to $200 depending on the brand. Some systems let you reprogram a new fob yourself using a code sequence, while others require a technician to do it.
Can I add a remote starter to a car I already own?
Yes. Aftermarket remote starters can be installed on most cars, whether you bought it new or used. The installer will assess your specific vehicle to confirm compatibility and give you a price quote. Older cars are usually cheaper to install because the wiring is simpler, while newer cars with advanced security systems cost more.