2023 Subaru Forester
Key Replacement - Save vs Dealer in Ventura County

Q: How long should a replacement key last on a 2023 Forester?

The programming doesn't wear out. A properly paired key stays registered to the vehicle indefinitely. What fails over time is the physical side: the CR2032 cell, the battery contacts, and the shell. Subaru owners on the forums are pretty consistent that the factory housings hold up well with normal daily use, and the electronics inside outlast the plastic by a wide margin.

Q: What if my replacement key stops working a few weeks after you program it?

Call me. The work is covered. That said, when a properly programmed 2023 Forester key acts up shortly after a replacement, the car is usually worth looking at before the key. There's a pattern owners report where the vehicle shows a key-not-detected warning and won't crank, then clears on its own after sitting for several minutes.

Q: I have a working key but I want a spare. Can you add one without going to the dealer?

Yes, and this is one of the most common calls I get for this generation of Forester. Adding a key to an existing system requires diagnostic equipment to register the new fob to the immobilizer alongside the one you already have. There's no ignition-turn sequence or button trick that works on this vehicle's smart key system.

Q: If I lose both keys, is the 2023 Forester an all-keys-lost job or does it need to go to a dealer?

It doesn't need to go to a dealer. All-keys-lost on this vehicle is a standard job for a mobile locksmith with the right equipment. The process involves connecting through the OBD port, clearing the existing key registrations from the system, and enrolling fresh fobs from scratch. The emergency insert blade also gets cut on site. It takes longer than an add-a-key job because of the reset sequence, but it's fully doable in the field. I've done it in parking lots.

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Whether you lost your only key, it was stolen, or it just stopped working, we handle it. No existing key needed. Our technicians program new keys directly to your vehicle's computer.

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Rapid response 2023 Subaru Forester key details from EZ Car Keyz Oxnard CA

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2023 Subaru Forester
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Lost Subaru Key: Tow vs Mobile Fix

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Wait Time

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All Keys Lost

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2023 Subaru Forester Smart Key Replacement - Fast, Affordable & Professional

I got a call from a guy in Lemonwood, Oxnard, around 3:30 in the afternoon. He worked at a brewery taproom nearby and his shift started at 4. The Forester's push-button start wasn't responding, the dash was showing a key-not-detected warning, and his manager was already texting him.

He wasn't panicked, but he was close.

I was in the lot in under 20 minutes. The fob looked fine from the outside, but when I opened it up the CR2032 was sitting slightly off-axis in the tray, just enough to break contact intermittently. No fault with the key itself, no fault with the vehicle. Just a battery that had shifted.

Seated the battery correctly, verified contact, tested every button on the fob. Then I walked the handles, confirmed touch-unlock was reading on both sides, and had him put it through a full start cycle himself so he could see it working before I packed up.

He clocked in five minutes late, which, given where he started, felt like a win. The whole thing cost him a fraction of what the dealer would have quoted just for the diagnostic, before they even touched a key.

Sometimes the job is the big reset and the new fob. Sometimes it's a battery clip and 25 minutes. Either way, I'm already in Oxnard.

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Lockout to Five-Star Review

Lost key panic turned to five-star praise

M

Marianne S.

Aug 2022

★★★★★

“I had two fob keys made for my Subaru. Marco provided excellent service and persevered through three parts orders to get the keys I needed. He is very thorough in making sure everything is working properly. Communication and punctuality are also to be commended.”

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Justic L.

Jul 2024

★★★★★

“Best locksmith around Oxnard / Ventura county area. Tim got my key cut and key fob replaced in 30 minutes. Went out of his way to help me out. I’ll definitely be coming back and recommending him to all my family and friends. Appreciate it Tim!”

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Jerry M.

Aug 2023

★★★★★

“This company was able to come out same day and fix my ignition lock for my Toyota. So happy with the service and the technician was super helpful. Even keyed the ignition to my door key.”

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Quick response locksmith review for 2023 Subaru Forester key - EZ Car Keyz Oxnard CA

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Subaru Forester Mobile Service FAQ

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Do you use OEM or aftermarket keys for the 2023 Forester?▼

We use verified blanks that match the factory FCC ID on the fob and the correct battery spec for your exact vehicle. On the 2023 Forester, this matters more than on older Subarus. The current smart key system is particular about what it will pair to, and forum threads are full of owners who bought a fob online, handed it to a locksmith or dealer, and got told the aftermarket unit wouldn't register cleanly.