Subaru Key Replacement in Eastvale, CA

How Subaru keys and immobilizers work

Subaru came to engine immobilizers later than most brands sold in the US, which keeps things simple for owners of early-2000s models: no 2000-2004 US Subaru has a transponder, so a correctly cut key starts the car. Subaru's own chart shows immobilizers arriving by model and trim from the 2005 model year. That year only the Forester XT, Impreza STi, Legacy GT and Outback XT and 3.0R had one. Every Legacy, Outback and Tribeca followed for 2006, the WRX joined the STi, the whole Impreza line had one by 2008 and the whole Forester line by 2009. The first systems use Texas 4D62 chips in side-cut keys. Subaru then moved to high-security laser-cut keys on 2008-2011 Imprezas, 2008-2014 WRX and STI models, 2009-2013 Foresters and 2010-2014 Legacy and Outback models. From the 2012 Impreza, an 80-bit Subaru G chip arrived in a side-cut remote-head key. The 2017 Impreza introduced the 128-bit Subaru H chip, which reached the Crosstrek for 2018, the Forester and Ascent for 2019 and the Legacy and Outback for 2020. Keyless Access smart keys began with the 2013 BRZ and the 2013-2014 Legacy and Outback.

Subaru key programming

A Subaru built before its line got an immobilizer only needs a correctly cut key. We cut from the key code, which Subaru releases by VIN through its lock information service (a paid site for professional locksmiths), or by decoding a lock. Transponder Subarus from 2005 through the G-chip years are programmed through the OBD-II port, and Subaru's own procedure relies on an immobilizer security ID that is released along with the key code. Remote-head keys are normally registered as transmitters in the same session on 2012 and later cars, while the separate fobs of earlier years have their own routines. H-chip cars accept an added key readily when a working key is present, but all-keys-lost needs dedicated Subaru software, an emulator or bench work, and Keyless Access fobs must be new or reset to blank. Bring every key you still have, and expect us to check ID and registration first.

All Subaru keys lost

With every key gone, the model year decides the job. A 2000-2004 Subaru, a Baja, or a base model built before its line got an immobilizer just needs a key cut by code or by decoding the door lock. On 4D62 cars from 2005 through 2011 and on remote-head cars of the G-chip years, we cut the blade, erase the missing keys and program new ones in one visit. Keyless Access cars of the G-chip years and every H-chip car are harder: some tools need a working key, so we use dedicated Subaru software or an emulator, and a few cars have to go to the dealer. Brand-new platforms, including the 2026 Outback and Subaru's electric models, are usually dealer jobs for now. We tell you plainly which route your car needs and check ID and proof of ownership before any work.

Subaru models we cover

• Impreza (2000–2026). The Impreza is Subaru's compact sedan and hatchback, sold in the US through every year of this range. It covers a wide spread of key technology: plain cut keys on 2000-2001 cars, a trim-by-trim immobilizer rollout in the mid-2000s, high-security laser keys from 2008, G-chip remote-head keys from 2012, Keyless Access fobs from 2015 and the H chip from 2017. Wagon and Outback Sport versions share their generation's keys. The turbocharged WRX and STI have their own pages, though early ones share hardware with the regular car.
• WRX (2002–2026). The WRX is Subaru's turbocharged performance car, sold in the US from 2002 as the Impreza WRX and as its own model from 2015. The hotter STI has its own page and uses the same key hardware as the WRX of its year unless noted. WRX keys tracked the Impreza's at first, then split off: the 2008-2014 cars kept high-security keys three years longer than the regular Impreza, and later WRX models moved push-button start onto more trims until it became standard.
• WRX STI (2004–2021). The STI is the track-focused top of the WRX family, sold in the US from the 2004 model year through 2021 as the Impreza WRX STI and later simply as the WRX STI. Its keys follow the WRX of the same year, so the story is plain cut keys at the 2004 launch, an immobilizer from 2005, laser-cut high-security keys for the middle years and a side-cut remote-head key from 2015. Smart fobs appeared on upper trims once the car became its own model.
• Legacy (2000–2025). The Legacy is Subaru's midsize sedan, sold in the US from before 2000 until the 2025 model year, when Subaru ended it. Its key history follows Subaru's own: plain keys through 2004, a transponder on the 2005 GT and on every Legacy from 2006, remote-head keys by 2008, high-security blades on 2010-2014 cars, Keyless Access fobs on upper trims from 2013 and the H chip from 2020. Legacy wagons of the early 2000s use the same keys as the sedan of their year.
• Outback (2000–2026). The Outback is Subaru's lifted all-wheel-drive wagon and its best-known model, sold in the US through every year of this range. Early generations also included an Outback sedan. Outback keys mirror the Legacy's through 2025, with plain keys to 2004, transponders from 2005, high-security remote-head keys for 2010-2014 and the H chip from 2020. The seventh-generation 2026 Outback, with a boxier, more SUV-like body, has push-button start on every trim.
• Forester (2000–2026). The Forester is Subaru's compact SUV, sold in the US throughout 2000-2026. It was one of the last Subarus to get an immobilizer on every trim: from 2005 to 2008, only the turbocharged XT had one. Later Foresters added a high-security key, then remote-head keys and Keyless Access fobs, and the H chip arrived with the 2019 redesign. The sixth generation, on sale since the 2025 model year, added a hybrid and keeps a keyed Base trim.
• Baja (2003–2006). The Baja was Subaru's Outback-based pickup, sold in the US for the 2003-2006 model years. It paired a four-door cabin with a short open bed and was offered with naturally aspirated and turbocharged engines. Because Subaru's own immobilizer chart shows no immobilizer for the Baja, its keys should be the simplest of any Subaru in this range: a cut key starts it, and only a keyless remote, if you have one, needs pairing.
• Tribeca (2006–2014). The Tribeca was Subaru's three-row midsize SUV, sold in the US from 2006 to 2014. It launched as the B9 Tribeca and dropped the B9 with its 2008 facelift, which also brought a larger engine. Subaru's immobilizer chart lists every Tribeca from 2006, and its key bulletin shows side-cut keys through 2014. No Tribeca has push-button start, so every one uses a conventional ignition key, and the later models add remote buttons to the key head.
• Crosstrek (2013–2026). The Crosstrek is Subaru's lifted compact crossover, based on the Impreza and sold in the US since the 2013 model year. It was called the XV Crosstrek through 2015, and Subaru also sold a mild hybrid in the first generation and a plug-in hybrid in the second. Its keys follow the Impreza's closely: G-chip remote-head keys at launch, the H chip from 2018, and push-button start across the lineup for 2026.
• BRZ (2013–2026). The BRZ is Subaru's rear-wheel-drive sports coupe, developed jointly with Toyota and sold in the US for 2013-2020 and again from 2022; there was no 2021 US model. Because Toyota had a hand in it, the BRZ's keys look more like Toyota keys than other Subarus of its time, with a Toyota-type remote-head key on lower first-generation trims and Toyota-style smart fobs on the rest. Every second-generation car starts with a button.
• Ascent (2019–2026). The Ascent is Subaru's three-row SUV, introduced for the 2019 model year as the brand's largest vehicle and refreshed for 2023. Every Ascent uses the 128-bit H chip. Lower trims originally came with a remote-head key while most buyers got Keyless Access with push-button start, and by 2026 Subaru made push-button start standard on every trim. Seven- and eight-passenger versions share the same keys.
• Solterra (2023–2026). The Solterra is Subaru's first electric vehicle, developed with Toyota alongside the bZ4X and sold in the US from the 2023 model year. It uses a Toyota-type key system rather than Subaru's own, with a smart fob and push-button start on every trim. For 2026 Subaru refreshed the Solterra and added a phone-based Digital Key on upper trims, which changes how many owners lock and start the car day to day.
• Trailseeker (2026–2026). The Trailseeker is a larger electric Subaru built on a Toyota-developed platform, following the Solterra and launched in the US for the 2026 model year. It has dual-motor all-wheel drive and a longer body than the Solterra. Every Trailseeker has keyless entry with push-button start, and Subaru offers a phone-based Digital Key on higher trims. As a brand-new model, it has little aftermarket key support so far.
• Uncharted (2026–2026). The Uncharted is Subaru's compact electric crossover, built on a Toyota-developed platform and launched in the US for the 2026 model year. Its base trim, the Premium FWD, is front-wheel drive, and all-wheel-drive versions are offered as well. Every Uncharted has push-button start, and Subaru offers a phone-based Digital Key on it, making this one of the most phone-centric key setups Subaru sells.

Common Subaru key problems

• Remote-head keys sold under FCC ID CWTB1G077 look alike but differ inside. The 2018-2019 Legacy and Outback versions carry the older G chip, while the 2017-2020 Impreza, Crosstrek, Forester and Ascent versions carry the H chip. Match the part number and pod color, not just the FCC ID.
• Subaru remotes of one era were built on two frequencies under different FCC IDs: CWTWB1U811 at 315 MHz and CWTWBU766 at 433.92 MHz. Both appear on remote-head keys for 2010-2015 Subarus, so match the part number printed on your old key before you buy a replacement.
• Between 2005 and 2008 Subaru fitted immobilizers by trim, so a base Forester or Impreza of those years may have no chip while the turbocharged version does. Check before buying blanks, because a chipless copy won't start an XT, WRX or STi.
• If a Keyless Access fob battery dies, the car can usually still be started with the backup method in the owner's manual, which uses the fob and the start button. The emergency blade hidden in the fob opens the driver's door.
• Remote-head keys from 2012 through at least 2022 mostly run on a CR1620 cell, while Keyless Access fobs from 2014 on take a CR2032. The 2024 remote-head key moved to a thicker CR2025. Inland Empire summer heat shortens coin-cell life, and shrinking range is the usual warning.
• Remote-head key shells tend to crack at the blade root after years on a heavy keyring. The remote board and transponder can usually be moved into a new shell with a freshly cut blade, which often costs less than a complete new key.
• Subaru smart keys use different emergency blades. Subaru's bulletin lists a 5+4 laser-cut emergency key for the 2014-2015 Forester, the 2014 Crosstrek Hybrid and the 2015 WRX, and a thinner 4+4 key on later cars. Cut the blade to match your fob, not just the model name.
• Used Subaru fobs sold online can arrive already programmed to another car. Ask whether a fob is new or reset to a blank state before you buy, and bring the part number and FCC ID from your old key so we can confirm the fit before programming.

Dealer or mobile locksmith?

The biggest difference between a dealership and a mobile locksmith is where the work happens. A dealer programs keys in its service bay, so if every key is lost, the car usually has to be towed there, and you work around the service department's schedule and the time it takes to order a key by VIN. Julian's Locksmith brings the cutting machine, key blanks and programming equipment to the car, whether it sits in your driveway, a workplace lot or a parking structure. For a Subaru car we can program on-site, that means no tow and no shuttle rides back and forth. The trade-off is real, though: on vehicles where only the dealer can program keys, a tow or appointment may still be necessary, and we'll say so before you spend anything on our visit.

How the job works

1. Identify the exact key your car uses. We ask a few quick questions on the phone: the year, whether the car starts with a turn key or a button, how many keys you have left, and whether the remote still works the doors. Then we check the VIN against our programming references so the van arrives with the correct blank or fob, not a close guess.
2. Verify ownership before any work. California holds licensed locksmiths responsible for knowing whose car they're making keys for. We record your name, the VIN and the plate on a work order. If you aren't the registered owner, you'll need the owner's written authorization along with your own photo ID before we begin.
3. Get the key code or decode the lock. A key is cut from a code, not a guess. When the factory code can be retrieved through manufacturer channels after ownership is verified, we use it. When it can't, we decode a door lock with a pick-decoder tool that reads the wafer positions without damaging anything, then work out any missing cuts.
4. Cut the blade on-site. Our van carries a code-cutting machine that handles both traditional edge-cut blades and the laser-cut, side-milled profiles common on newer keys. The blade is cut to the code, then test-fitted in a door lock and the ignition or emergency keyhole to confirm smooth operation before any programming begins.
5. Program the chip, remote or smart key. Programming tells the car's computers that the new key belongs to the vehicle. Transponder chips are added to the immobilizer, remote buttons to the body control module, and proximity fobs to the keyless system. If a step requires dealer-only access on your car, you'll have heard that before we arrived, not halfway through the job.
6. Test everything and clear out old keys. The last step is a short walkthrough. We show you how many keys the car now recognizes, point out the dead-fob start method for your vehicle, and hand you an itemized receipt. If a spare makes sense, it's simplest to add it during this same visit while the equipment is already connected.

Proof of ownership

Not every situation fits the simple case, so here's how we handle the common exceptions. For a leased or financed vehicle, a registration that lists you as the registered owner or lessee works with your ID. If you just bought the car, bring the signed title or bill of sale along with your ID. For a company or fleet vehicle, we need written authorization from the business plus the driver's ID. If the car belongs to a family member, the registered owner should be present or provide signed permission and a copy of their ID. Rental vehicles go through the rental company.

Subaru keys in Eastvale

Eastvale is about 27 miles from our San Bernardino base, roughly 34 minutes in light traffic via Little Mountain Drive and Highland Avenue to SR-210 West. When you call, you get an arrival estimate based on where the technician is and the traffic at that moment. Homes and businesses just off Archibald Avenue are routine stops for us. Give the suite or unit number and any gate instructions, and say whether the van can park out front or should pull into a side lot.

Not open around the clock, and we say so plainly. What we do offer is a long day: from 6:30 in the morning until 11:30 at night on Sundays, Mondays, Tuesdays, Wednesdays and Thursdays. Fridays and Saturdays get the same long day. That schedule covers the hours when people are usually heading out to work or getting back home.