Scion xA Key Replacement

xA keys by generation

Every xA starts with a conventional Toyota-style key cut on the TOY43 profile, the edge-cut pattern Toyota used across much of its lineup in those years. Keyless entry came through a separate three-button remote for lock, unlock and panic rather than buttons in the key head. Many US-market xAs have no factory transponder, so a correctly cut key normally starts the engine, although a car fitted with an added security system may read a chip. We look at your key and test a cut key on the car before quoting, in case an aftermarket alarm, a replaced ignition or an imported car changes the picture. Because the typical US xA has no transponder, making a key is mainly a cutting job. With a working key, we duplicate it. With none, we cut from the key code if you have the tag, or decode the driver's door lock to find the cuts. The separate remote usually pairs through Toyota's on-board routine of door, key and lock-button steps, so a replacement fob can be added in your driveway. If we find a chip in your key after all, we program the new key through OBD-II instead.

Scion key security

Scion was Toyota's youth brand from the 2004 through 2016 model years, so most Scion key systems are Toyota systems underneath, and the last few came from partners. What surprises owners is how uneven the immobilizer picture is. The tC is the Scion where a transponder immobilizer is the norm: a Texas 4D-67 chip through 2010, then Toyota's 80-bit G chip from about 2011. The low-priced boxes and hatchbacks are different. Parts catalogs list their remote keys in versions with and without anti-theft, and installer reports say many US xAs, xBs, xDs and iQs have no immobilizer at all, so a plain cut key starts them. Canadian-market versions should read a chip, because Canada has required immobilizers on new cars since 2007. The final three Scions broke the pattern. The Subaru-built FR-S uses a Toyota G chip in a four-button remote-head key, with a smart fob on its push-button editions. The iA is a Mazda2 sedan with Mazda's push-button smart key and NXP Hitag Pro fob, and the iM, a European Auris, uses a 128-bit Toyota H (8A) flip key. Because the same badge hides such different systems, we start every Scion job by checking your key and the car itself.

How we make a Scion key depends on which of three groups the car falls into. On the tC, FR-S and iM, the transponder in the key is registered through the OBD-II port with professional equipment, and the buttons on a remote-head or flip key are synced as a separate step. Push-button editions add a smart fob registered the same way. Toyota's 4D-67 and G systems let us add a key from one working key, and the immobilizer can be reset when none are left, though that reset often includes a security wait. On cars without an immobilizer, which covers many xA, xB, xD and iQ models, the job is mostly mechanical: we cut the TOY43-profile blade by code or by decoding a lock, then pair the remote through Toyota's door-and-ignition routine or a programmer, after testing a cut key in case yours reads a chip. The iA follows Mazda smart-key rules, with fobs that must be new or unlocked. First, we check your ID and registration.

All xA keys lost

Losing every key to a Scion is usually fixable in one visit, but what it takes depends on the model. On cars without an immobilizer, we decode the driver's door lock or cut from the key code, then pair a remote if you want one. On a turn-key tC, the immobilizer is reset through OBD-II before new keys are registered, and we program at least two keys so the lost ones can no longer start the car. Push-button tCs, the FR-S, the iM and the iA take longer: they involve pass-code, PIN or emulator steps, and an occasional car may need the dealer, so we confirm coverage by VIN before we drive out. For the iA, we register new Mazda smart fobs and cut the emergency blade to match the door lock. In every case, expect us to verify your ID and proof of ownership first.

1. Gather your documents and the VIN. Call with the year, make, model and VIN if you can read it through the windshield, plus where the car is parked. Those details let us confirm whether your Scion xA can be done on-site and bring the right key, so the first trip is the only trip.
2. Get into the vehicle without damage. Entry comes before key-making because we need access to the ignition, the OBD-II port and sometimes the documents in the glove box. We take care with weather stripping, door frames and paint, and we confirm the dash VIN matches your registration before going any further.
3. Originate a new key from the car. Originating a key means building it without a sample. The door lock usually reveals most of the cuts; any it doesn't are worked out by test-cutting and trying the ignition or a second lock. The finished blade should feel like a factory key, not a forced fit.
4. Erase missing keys and add a spare. Once the car starts, we remove the lost keys from memory wherever the system allows, so they can't start the engine if someone finds them. Making a second key during the same visit costs much less than a repeat all-keys-lost call down the road.

Dealer or mobile locksmith?

Dealers have one clear advantage: direct access to the manufacturer's own systems. Some newer vehicles tie key programming to online authorization that only a dealer can use, and certain all-keys-lost situations on specific platforms still require it. A good locksmith knows where those lines are. Where we can do the job, we use professional programming equipment that talks to the same immobilizer and keyless systems through the OBD-II port, and in many cases the result is identical: a properly registered key that starts the car. Where we can't, we can often still help by opening the vehicle, cutting a mechanical blade from code, or helping you gather what the dealer will ask for so that visit goes smoothly. For your Scion xA, ask us directly and you'll get a plain answer.

How the job works

1. 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.
2. 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.
3. 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.

What affects the price of a xA key

• Factory or aftermarket parts. Factory keys and fobs carry the manufacturer's part number and usually the highest parts cost. Quality aftermarket keys use compatible electronics at a lower price and work well on many vehicles. We tell you which options we trust for your car, and where an aftermarket version has known range or fit issues, we steer you to OEM.
• Blade style and cutting. Traditional edge-cut blades are quick to cut. High-security laser-cut blades, with a groove milled into the side, need a specialized machine and more care, and the blanks themselves cost more. If we have to decode a lock to find the cuts, that adds labor as well.
• Travel, timing and extra repairs. Because we come to you, the distance from our San Bernardino base and the time of the call play a part. So does anything we find along the way, such as a worn ignition cylinder or a seized door lock. You hear about each item and get a quote before we start work.

xA key types explained

• Basic mechanical key. Before treating a Scion xA key as purely mechanical, we confirm it. Some keys look like plain metal with a rubber or plastic head yet hide a transponder inside, and immobilizers arrived on different trims and model years at different times. If yours truly has no chip, the new key is cut and then tested in the doors, ignition, glove box and trunk where those locks exist. Mechanical blades also show up on newer vehicles as valet keys and as the emergency insert tucked inside a smart fob. Those blades still matter: they're how you get in when a fob battery dies, so they deserve the same careful cutting.
• Key with separate remote fob. Separate remotes are easy to find online, which is exactly why they cause trouble. A listing can show the same shell as your Scion xA remote while hiding a different FCC ID, frequency or internal chip, and some used remotes are locked to the first vehicle they were paired with. We're glad to look at one you've already bought, and we'll tell you honestly whether it can be paired before charging you to try. If the remote side of your setup has become unreliable, it's also worth asking whether a fresh remote and a newly cut key, matched together, would cost less than chasing repairs on aging parts.

Why a spare key pays for itself

• Two drivers sharing one key is a daily negotiation. A second key lets a partner, teenager or coworker use the vehicle without handing keys back and forth in parking lots, and it means one person losing their key ring doesn't leave the whole household stuck.
• When you sell or trade in the vehicle, buyers and dealers expect two keys. A missing key can come up during an appraisal or a private-sale negotiation, so having both on hand keeps the conversation about the car, not about what it will cost the next owner to replace one.
• A spare stored safely at home rescues you from a locked car with the fob sitting on the seat, a key dropped somewhere along a hiking trail, or a fob that stops responding on a busy morning. Keep it indoors, never in a magnetic box under the bumper.

Tips from a mobile locksmith

• Photograph the back of your fob and any key tag that came with the car. The FCC ID, part number and key code printed there make ordering a replacement faster and more accurate. Store the photos somewhere you can reach from any device, not only on the phone that might go missing along with the keys.
• Never hide a spare key or fob on the outside of the car. Magnetic boxes in wheel wells and under bumpers are the first places a thief checks, and with a proximity fob, a hidden key can let anyone open the doors and drive away. Keep the spare at home or with someone you trust.
• On any vehicle with a turn-key ignition, keep the key ring light. A heavy cluster of keys, tools and charms swings with every bump and slowly wears the ignition wafers and the key itself. When the key starts to stick or needs a wiggle to turn, deal with it early, before it stops turning entirely.
• Every so often, use the mechanical blade in the driver's door lock. Cylinders that go years without a key can seize from dust and dried grease, and you won't find out until the day the fob dies and the blade is your only way in. A small shot of dry lubricant keeps the lock ready.

Common Scion key problems

• Toyota marks chipped blades with a stamped dot (4D-67), G or H near the head. Replacement remote-head keys for the tC, xB, xD and iQ come in chipped and chipless versions that look alike, so match the stamp and FCC ID before buying one online.
• Installer reports say many US-market second-generation xBs, xDs and iQs have no engine immobilizer, so any correctly cut key can start the car. That makes a lost key a real theft risk, and re-keying the ignition and door locks is worth considering.
• Scion remote-head keys often crack where the blade meets the plastic head. The circuit board usually survives, so a new shell with a freshly cut blade can fix it, provided the transponder chip moves across with the board.
• On a first-generation tC, a spare that was cut but never programmed will turn the ignition and crank the engine, yet the car won't start until the 4D-67 chip is registered. Owners sometimes mistake this for a fuel or starter fault.
• Inland Empire heat shortens the life of the CR2016 cells used in most Scion remote-head keys. If range drops to a few feet or the buttons work only some of the time, replace the battery before assuming the remote has lost its programming.
• The iA's Mazda smart fob can still start the car with a dead battery: hold the fob against the START/STOP button while pressing the brake. The emergency insert key hidden in the fob opens the driver's door.
• The separate remote on the first-generation xB is a common Toyota design shared with early-2000s Highlander, RAV4 and Tacoma models, so replacements are easy to find and can usually be paired on board without a computer.

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.