2010 Toyota 4Runner Key Replacement

The 2010–2019 4Runner uses the same key setup, so everything on this page applies to those years too. The full picture is on the Toyota 4Runner key guide.

2010 Toyota 4Runner: key facts

Key type: Remote-head key
Push-to-start: No
Transponder chip: G (4D-72)
Programming: OBD
All keys lost: We can originate new keys on site

HYQ12BBY remote-head key on the 80-bit G chip; Limited trims offer a smart-key/push-button system (HYQ14ACX fob, DST80 era).

What kind of key does a 2010 4Runner use?

Most 2010 4Runners use a remote-head key. That means the metal blade, the transponder chip and the lock/unlock buttons are all built into one piece. The remote-head part number for this setup is HYQ12BBY. The chip inside is the G family, also written 4D-72, an 80-bit chip. Three separate key-data sources we cross-check agree on that, which is why we treat it as verified.

The chip is the part that matters most. The truck's immobilizer looks for a recognized chip signal before it lets the engine run. A key can turn the ignition perfectly and still not start the truck if the chip is missing or has not been programmed to the vehicle.

The 4Runner also has a mechanical backup key. If the remote battery dies or the remote part fails, the blade can still work the door lock. That is useful to know, but it does not replace a working, programmed transponder key for starting the engine.

Key type: remote-head key with transponder
Chip: G (4D-72), 80-bit
Push-to-start: not on the standard setup
Programming: through the OBD port, no NASTF SDRM access required

Spare copy or all keys lost: what changes?

If you still have a working key, making a spare is the simpler job. For this setup, duplication starts from an original key, so having one in hand helps. We cut the blade, add a correct G-chip remote head and program it to the truck.

If every key is gone, that is still possible to solve. All-keys-lost work on this setup can be done. We cut a key to the lock by code or by decoding, then program a new transponder key through the OBD port. It takes more steps than a simple spare, and the truck usually has to be with us or reachable by our mobile van.

One warning from experience: do not buy a plain, non-transponder key from a hardware store and expect it to start the truck. It may open the door and even turn the ignition cylinder, but the engine will not run because there is no chip to read.

How we handle a 2010 4Runner key job

Here is the usual order of work. The details shift depending on whether you have a key and which system your truck has.

You call (213) 577-1366. We answer 24 hours a day and ask for your VIN, the trim and whether you have any working key.
We confirm the key system for your specific truck. Standard trims get the remote-head key. Limited trims may use a smart key, and we sort that out before cutting or ordering anything.
We cut the blade and prepare the remote head and chip. If you have no keys, we generate the cut from the lock.
We program the transponder through the OBD port and then add the remote functions.
We test everything: door lock with the blade, remote buttons, and starting the engine. We also test any spare key before we leave.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

What affects the cost of a 4Runner key?

We do not quote numbers on a web page because the job decides the cost. These are the things that actually move it:

Whether you have a working key to copy from or all keys are lost
Standard remote-head key versus a Limited-trim smart key, which is a different part
How many keys you want made at once
Whether the remote needs to be replaced or only the shell and buttons
Where the truck is parked, whether at our shop or at your location with a mobile van
Time of day, since we work nights and weekends too

What we confirm by VIN

Our data says the standard 2010 4Runner is a remote-head setup with no push-to-start. It also notes that Limited trims offer a smart-key, push-button system that uses an HYQ14ACX fob, from the DST80 era. Those are two different key systems on the same model year, so we do not guess from the year alone.

If you are not sure which one your truck has, tell us your trim or read us the VIN and we will confirm in person or over the phone before we order a part. A fob that looks similar can be the wrong one.

If you are after the wider picture, see our pages for all Toyota key services or the 4Runner overview. Our car keys hub lists the other makes we cover.

Why call Wilshire Lock & Key

We have been in business since 1987, with a storefront at 10740 Wilshire Blvd in Westwood and mobile vans that serve 140 cities across Los Angeles and Ventura counties. You reach us directly, not a dispatch middleman, and David oversees the work as owner and lead technician.

If you hire any locksmith, ask for their California BSIS LCO license number. The state requires locksmith companies to hold one, and a legitimate company will give it to you. Ready to start? Use our contact page or just call (213) 577-1366.

Frequently asked questions

What transponder chip does a 2010 Toyota 4Runner use?

The standard remote-head key uses an 80-bit G chip, also called 4D-72. Three key-data sources agree on this. Limited trims with a smart-key system are a different setup, so we confirm by VIN.

Can you make a 2010 4Runner key if I lost all of them?

Yes. All-keys-lost work is possible on this setup. We cut a new key to the lock and program a transponder through the OBD port. Call (213) 577-1366 and have your VIN ready.

Will a hardware-store copy start my 4Runner?

No. A non-transponder copy may turn in the lock, but the engine will not start without a programmed chip. It is a common mistake with this truck.

Do I need my original key to get a spare?

For this setup, duplication starts from an original key, so it helps to bring one. If you have none, we can still do an all-keys-lost job.

Does my 4Runner have push-to-start?

The standard 2010 setup does not. Some Limited trims have a smart-key, push-button system with an HYQ14ACX fob. Give us the VIN and we will confirm which one your truck has.

Do you need special dealer access to program the key?

No. This setup programs through the OBD port and does not require NASTF SDRM access, so we handle it ourselves without sending you to a dealer.

My remote stopped working. Do I need a new key?

Not always. A weak remote battery is a common cause, and worn buttons or a cracked shell are also common on these keys. We check the cause first, and you can reach us through our contact page or by phone.

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Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.