2011 Subaru Legacy
Key Replacement - Save vs Dealer in San Diego

Q: What exactly is a remote head key, and how does it work on a 2011 Subaru Legacy?

A remote head key is one piece of hardware that does two separate jobs. The key blade turns in the ignition like any physical key. Built into the head of the key is a transponder chip that talks to the vehicle's immobilizer every time you try to start the car. If the immobilizer doesn't recognize that chip, the engine won't run, even with a perfectly cut blade.

Q: Why does the dealer take so long on Subaru key jobs compared to a mobile locksmith?

Three bottlenecks, same as most dealers. First, fob inventory. Subaru dealers frequently order remote head keys by VIN rather than keeping a wide variety stocked. If yours isn't on the shelf, you're waiting on a parts order. Second, scheduling. Programming isn't always something a service advisor handles at drop-off. It often gets assigned to a tech with the right software access, and that means a separate appointment slot.

Q: I bought a replacement fob online for my 2011 Legacy. Can I program it myself?

The remote functions on some older Subaru fobs can be self-programmed through an ignition-based sequence if you already have one working key in hand. That procedure only handles the remote side, meaning lock and unlock. It does not touch the transponder chip, and the transponder is what the immobilizer reads when you try to start the car.

Q: My 2011 Legacy starts fine but the fob buttons stopped working. Is the key bad?

Start with the CR2032. A battery that measures low on a multimeter can still fail under the load the fob puts on it during transmission. Swap in a fresh one from a sealed pack and retest all four buttons. If that doesn't fix it, check the fob housing for any cracks or damage around the battery contacts. A slightly bent contact tab can cause intermittent failure even with a good battery seated inside.

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2011 Subaru Legacy key info from mobile locksmith EZ Car Keyz Santee CA

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2011 Subaru Legacy
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Remote Head Key

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2011 Subaru Legacy Remote Head Key Replacement - Fast, Affordable & Professional

I was already in Santee on another job when the call came in from the Fanita Ranch area. A caregiver had a 2011 Legacy sitting in a parking lot near the neighborhood, and the only fob had gone through the laundry. Full wash cycle, probably the dryer too. The fob was dead, no response on any button, and the car wouldn't start.

She had a pickup window she couldn't miss. The dealer told her they'd need to order the fob by VIN and get her in later that week. That wasn't going to work.

I pulled up, popped the fob housing open to confirm the battery and internals were just done. Water intrusion, corrosion on the contacts, the whole thing. Not a battery swap situation. She needed a new fob, cut and programmed from scratch.

I cut a replacement blade to her vehicle and ran the programming sequence through the OBD port. The transponder chip got enrolled to the immobilizer, the remote functions got registered, and I walked every button before I closed anything up. Lock, unlock, trunk release, panic, all working. Then I had her start the car twice to confirm the immobilizer wasn't holding a ghost of the old fob against the new one.

Took about 35 minutes on site. She made her pickup window. The dealer would have been days out and cost her a good chunk more. That part almost didn't come up because she was already focused on leaving.

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2011 Subaru Legacy

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Ricky M.

Sep 2026

★★★★★

“Had an issue with Subaru ignition called ez car keyz for assistance they were able to make a new key for the car and now the car starts perfect thanks Marco.”

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Ray P.

Dec 2025

★★★★★

“Marco is the man for car keys, lost my key for a Subaru wrx he showed up same day and programmed it on the spot! Nice guy and great service!!”

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Garrett F.

Aug 2026

★★★★★

“I called them in an emergency. It was late, I lost my keys to 2 cars I was trying to move and had to be done by morning. He answered enthusiastically and came to me within 30 min!! 30 min later he was done. He was great, fair priced and worth it. I recommend him 100%.”

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Subaru Legacy Mobile Service FAQ

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How long does a Subaru dealer take for a key replacement on a 2011 Legacy?▼

It depends almost entirely on whether the fob is sitting on a shelf or has to be ordered by VIN. If the dealer has one in stock and your situation is add-a-key rather than all-keys-lost, some owners report being in and out in under an hour. That's the best case. More commonly, the fob gets ordered, you schedule a separate programming appointment, and the whole thing stretches two to four days.