How do you remote start a Subaru Legacy?

If your Subaru Legacy is equipped with factory remote start, you can start the engine remotely with the key fob using a simple sequence; if not, aftermarket kits or other options may apply. In most cases, the feature runs for about 10 minutes per cycle before needing driver intervention.

Understanding remote start options for the Subaru Legacy

The way to remote start can vary by model year and market. The following sections cover common factory-equipped methods and what to do if your vehicle doesn’t have factory remote start installed.

Factory remote start (push-button ignition or key fob)

The steps below apply to most Legacy models that include Subaru’s factory remote start. If your year differs, consult the owner's manual for the exact sequence.

1. Ensure all doors are closed, the transmission is in Park, and the parking brake is engaged.


2. Press the Lock button on the key fob.


3. Within 5 seconds, press and hold the Engine Start/Stop button on the fob for 2–3 seconds. Release; the engine should start.


4. The exterior lights may flash and the climate control or defroster may begin operating automatically as the engine runs.


5. To cancel early or stop the remote start, press the Lock button again on the fob (or follow the vehicle’s manual guidance to enter and drive normally).

Most factory remote-start cycles run for up to about 10 minutes. If the vehicle doesn’t start or the fob doesn’t respond, check the fob battery, ensure you’re within range, and confirm that the system is enabled for your trim. Always refer to the owner’s manual for year-specific instructions.

What to do if your Legacy doesn’t have factory remote start

If your Legacy does not come with a factory remote-start system, you have two main options: install an aftermarket remote-start kit or use preconditioning methods that don’t involve remote starting. Here’s what to consider for aftermarket options.

• Check compatibility with your model year and transmission (many aftermarket kits require an automatic transmission; manual transmissions are less commonly supported or advised due to safety and warranty considerations).


• Follow the kit manufacturer’s wiring and immobilizer integration instructions, and consider professional installation to protect your vehicle’s security and warranty.


• Most kits provide a dedicated remote or smartphone app; comply with local laws and safety guidelines when using remote-start capabilities.

Aftermarket systems vary widely in how they operate and how they interact with Subaru’s factory alarms and immobilizers. If you’re unsure, seek guidance from a qualified installer or your local Subaru dealer to avoid warranty issues or security risks.

Safety tips and troubleshooting

• Never use remote start in enclosed spaces such as garages or carports due to carbon monoxide buildup and fire risk.


• Only start remotely when the area around the vehicle is clear and the vehicle is in a safe, ventilated location.


• If the remote start doesn’t respond, check the key fob battery, confirm you’re within range, and ensure the vehicle is in Park with doors closed.


• For factory systems, avoid starting if warning lights indicate a system fault; consult the owner’s manual or a dealer if a warning persists.


• If you notice unusual smells, noises, or performance issues after remote starting, stop the vehicle and have it inspected promptly.

Summary

Remote starting a Subaru Legacy is straightforward when the car is equipped with factory remote start: use the key fob sequence (typically Lock, then hold the Engine Start/Stop button) to start the engine, and expect the run time to be around 10 minutes. If your Legacy lacks factory remote start, you can explore reputable aftermarket kits or consult a dealer for options, keeping safety and local regulations in mind. Always verify year-specific instructions in the owner’s manual.

Can I remote start MySubaru with my key fob?

Yes, you can remote start many Subaru models with a key fob, typically by pressing the lock button twice and then holding it until the engine starts. This feature is generally available on models with an automatic transmission and either a factory-installed system or a genuine accessory remote start. 
To remote start your Subaru

• Press the lock button: once briefly.
• Press the lock button again: within a few seconds.
• Press and hold the lock button: a third time. The engine will start once the lights flash and/or the horn beeps. 

This video demonstrates how to remote start a Subaru with a key fob: 55sTyson The Subaru Specialist YouTube · Dec 18, 2023
To turn the engine off

• Press and hold the lock button to shut the engine off. 

Important to know

• Vehicle requirements: Your Subaru needs an automatic transmission and a keyless entry/push-button start system for this to work. Base models with a standard key ignition will not have this feature. 
• Door locks: All doors, the hood, and the trunk must be fully closed for the system to work. 
• Run time: The engine will typically run for about 13 to 15 minutes before it automatically shuts off. 
• Alternative method: You can also use the MySubaru app to remote start your vehicle if your model is equipped with it. 

How does MySubaru remote start work?

And click the push button start and then it'll say it's ready to drive. And you can put it in gear. So not only do you have the ability to remote start your car but you can also get it comfortable.

How do I remote start MySubaru Legacy?

To remote start a Subaru Legacy, press the lock button on your key fob twice, then press and hold the lock button again to start the engine. Alternatively, use the MySubaru app on your smartphone, which is a subscription service that works for most 2020 and newer models with a keyless entry fob and push-button start. 
Using your key fob

• Ensure the doors are locked. You can do this by pressing the lock button once. 
• Press the lock button: on your key fob twice within a two-second period. 
• Press and hold the lock button: for about 3 seconds. 
• The hazard lights will flash and the horn will honk to confirm the vehicle has started. 
• To turn the engine off, press and hold the lock button again. 

This video demonstrates how to use the genuine Subaru remote start accessory with a key fob: 48sTyson The Subaru Specialist YouTube · Nov 20, 2024
Using the MySubaru app

• Download and set up the app: Download the MySubaru app, create an account, and link your vehicle using its VIN. 
• Open the app and select Remote Start: Go to the "Remote Services" section and tap the "Remote Start" button. 
• Adjust climate preferences: Before starting, you can set your desired temperature and other preferences, such as heated seats, within the app. 
• Start the engine: Press the "Remote Start" button in the app. 
• To stop the engine: Use the "Stop" button within the app. 

You can watch this video to learn how to use the MySubaru app for remote start: 1mAlex PrestigiacomoYouTube · Feb 5, 2023
Important notes

• Remote start systems may have different features depending on the model year and installed accessories. 
• For the MySubaru app, a subscription is typically required, and the service is generally available on models 2020 and newer with a keyless entry fob and push-button start. 
• For both methods, the car will remain locked and will not be drivable until you press the brake pedal and the start button with your key fob inside the vehicle. 

How do I use my key fob as a remote start?

Times. Once started remotely the engine will run for 10 minutes and then shut. Off. You can extend the running time for another 10 minutes by repeating the start procedure during the initial. Period.