2000 Toyota Sienna Key Replacement

The 2000–2003 Sienna uses the same key setup, so everything on this page applies to those years too. The full picture is on the Toyota Sienna key guide.

2000 Toyota Sienna: key facts

Key type: Transponder chip key
Push-to-start: No
Transponder chip: 4C
Programming: OBD
All keys lost: We can originate new keys on site

What kind of key does a 2000 Sienna use?

The 2000 Sienna uses a transponder key. There is a small chip in the plastic head of the key, and it belongs to the 4C chip family. That detail was checked against more than one key-supply reference, so we treat it as verified. The van does not have push-to-start. You put a real key in a real ignition and turn it.

What that means for you: the metal blade is only half the key. The van's immobilizer looks for the right chip signal, and if it doesn't get one, the engine won't run, even when the blade turns the ignition easily. A key cut at a hardware store without a chip is the classic trap. It slides in, it may turn the lock, and the van still won't start.

Programming on this year is done through the OBD port under the dash. According to our data, it doesn't require the NASTF SDRM secure-data access that some other vehicles need, so we can handle it with our own equipment on site, either at our Westwood storefront or from a mobile van.

Key type: transponder, 4C chip family
Ignition: turn-key, not push-to-start
Programming: OBD port
Hardware-store blades without a chip will not start the van

Duplicate or all keys lost: which situation are you in?

For this van, the easier job is a duplicate. Copying needs an original key that still works, and that is the setup the data shows for this year. If you have one good key, we can make a matching spare, cut the blade, and program the new chip so the van recognizes it.

If every key is gone, the job is still possible. This year allows all-keys-lost replacement, so you don't have to give up on the van or assume the dealer is your only route. It just takes more steps than copying, because there is no original to work from.

If you're down to one key, make the spare now. That one key is the difference between a simple duplicate and a full replacement.

Tell us the year, model, and whether you have any working key.
We confirm the key details against your VIN and the van itself.
We cut the blade, working from your original if you have one.
We program the chip through the OBD port and test it in the ignition, the door locks, and a start.

Worn keys and tired ignitions on a 2000 Sienna

The data points to a few problems common on this year. The first is worn ignition wafers, which show up on high-mileage vans. The second is a worn key blade that no longer turns the lock. The third is the non-transponder copy that won't start the van.

These matter because a new key doesn't always fix a worn ignition. If your old key has been sticking or you have to jiggle it, a copy of a worn key can inherit that wear. It's often better to cut from a key that still works well, or to have us check the ignition before we cut anything.

If your van has been getting harder to start, tell us on the call. We can look at the ignition and the key together instead of guessing.

Locked out or need a locksmith now?

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

Call (213) 577-1366

What affects the price of a 2000 Sienna key?

We don't quote numbers on a web page, because the real cost depends on your situation. These are the things that move it:

Whether you have a working original key. A duplicate is usually the more economical route compared with all keys lost.
How many keys you need cut and programmed.
The condition of the ignition and door locks. If the wafers are worn, that may need attention too.
Where the van is. Coming to you with a mobile van is different from you driving to our storefront at 10740 Wilshire Blvd.
The time of day you need service. We answer around the clock, and after-hours work is different from a weekday visit.

What we confirm by VIN, and why call us

The key facts for this year are verified, but we still confirm by VIN and in person before cutting anything. Trim and build details can vary, and the data lists a mechanical backup key for this setup. We'll tell you plainly what that covers on your particular van once we see it, rather than promise something from a chart.

Wilshire Lock & Key has been in business since 1987. We serve 140 cities across Los Angeles and Ventura counties from one storefront and mobile vans, with no dispatch middlemen. David, the owner and lead technician, oversees the work. California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for theirs before work begins.

For more on this model, see our Toyota Sienna key pages or the wider Toyota key service page. You can also browse all car key services or contact us with your VIN.

Frequently asked questions

Does a 2000 Toyota Sienna have a chip in the key?

Yes. It uses a transponder key with a 4C chip. The van's immobilizer reads that chip, so a plain metal copy will not start the engine.

Is the 2000 Sienna push-to-start?

No. It is a standard turn-key ignition, so no smart-key system is involved.

Can you copy my key if I only have one?

Yes. Duplicating needs a working original, and one good key is enough. We cut a matching blade and program the new chip through the OBD port.

What if I've lost every key to my 2000 Sienna?

All-keys-lost replacement is possible for this year. It takes more steps than a duplicate, so it usually costs more, but you can still get a working key made.

Why won't my Sienna start with a copy from a hardware store?

Hardware-store copies usually have no transponder chip. The blade may turn the ignition, but the van needs the right chip signal to start.

Do you need special dealer access to program this key?

Not for this year. Our data shows OBD programming with no NASTF SDRM requirement, and we do the work ourselves.

My key is worn and barely turns. Should I just copy it?

Not without a look first. Copying a badly worn key can carry the wear over, and worn ignition wafers are a known issue on high-mileage vans. We'll check before we cut.

Do you come to me?

Yes. We have mobile vans and a storefront at 10740 Wilshire Blvd in Westwood. Call (213) 577-1366 at any hour, any day.

We cover all these cities

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

Last updated 2026-10-11.