How do I reset my Subaru keyless entry?
Resetting your Subaru keyless entry typically means reprogramming or re-synchronizing the key fobs with the vehicle’s computer. In many newer Subarus, this is handled by a dealership or licensed locksmith, but some older models allow a do-it-yourself re-sync. Understanding which path fits your car is essential to getting your remotes working again.
Here, we explain what “reset” can involve, how to tell whether you can handle it yourself, and where to seek professional help if the DIY steps don’t solve the issue. We’ll cover common symptoms, battery checks, and practical tips to prevent future remote problems.
Understanding what reset involves
“Reset” can mean different things: re-synchronizing an unresponsive remote after a battery change or interference, or reprogramming the fobs so the car recognizes new or additional remotes. The exact procedure depends on your Subaru model and year. In many modern Subarus, full programming of new remotes is a service task that requires factory tools, while some older models offer a DIY re-sync option.
DIY troubleshooting steps you can try at home
Before reaching for professional programming, perform these preliminary checks to rule out simple causes.
- Check and replace the key fob battery. Most Subaru remotes use a CR2032 coin cell. Open the fob, swap the battery with the correct polarity, and reseal the housing firmly before testing.
- Inspect the car’s 12-volt battery. A weak or failing 12V battery can cause remote receivers to behave erratically. If the car struggles to start or electronics seem sluggish, test or recharge the battery first.
- Test all remotes. If multiple remotes are nonfunctional, the issue may lie with the car’s receiver or the programming rather than individual fobs.
- Attempt a model-specific resync if your vehicle supports it. Some older Subaru models allow a home re-sync after a battery change; check your owner’s manual or Subaru’s support resources for your exact year and trim.
Note: The exact DIY re-sync procedure varies by model and year. If your model does not support home programming, attempting an at-home sequence may not work and could complicate the situation. A quick check of the owner's manual or Subaru’s official support site can confirm the supported method for your car.
After attempting these steps, if the remotes still don’t respond, you’ll likely need professional programming to restore full functionality.
Professional programming options
Dealership programming
Most Subaru dealerships can program new or replacement key fobs and re-link existing remotes to your vehicle’s immobilizer system. Bring a valid ID, the vehicle’s VIN, and any existing remotes. The process can take about 15–60 minutes, and costs vary by location and whether you’re purchasing a new fob from the dealer. Expect to pay for both the programming service and the fob if you don’t already have one.
Independent locksmiths
Some licensed automotive locksmiths have the tools to program Subaru remotes using factory-compatible equipment. This option can be faster or cheaper than a dealership, depending on your area. Make sure the locksmith has experience with your model year and can provide warranty coverage on the programmed remotes.
Model-specific notes
Keyless-entry and remote-programming procedures vary by Subaru model and year. The following general guidance can help you plan, but always verify with the owner’s manual or Subaru support for your exact car:
- Newer Subarus with push-button start often require dealer or specialized locksmith programming for new remotes. DIY reprogramming is less commonly available for these vehicles.
- Some older Subaru models allowed owner-initiated re-syncs or programming sequences. If yours is older, consult the manual or trusted automotive resources for the exact steps.
- Interference from other RF devices or a weak fob battery are common reasons remotes stop working, even if the car’s receiver is functioning properly.
Useful tips and precautions
To prevent future keyless-entry issues, keep spare remotes in good condition, replace batteries promptly, and avoid exposing remotes to extreme heat or moisture. If you replace the car battery, you may again need to re-synchronize remotes, depending on the model.
Summary
Resetting Subaru keyless entry focuses on reprogramming or re-syncing the key fobs with the vehicle. While some older models offer DIY resync options, most modern Subarus require professional programming—either at a dealership or by a qualified locksmith. Start with a fresh battery for the fob and a check of the car’s 12V battery. If remotes remain unresponsive, contact a dealer or locksmith with your vehicle’s VIN and proof of ownership to get a precise, model-specific solution.
