Chevrolet Traverse key replacement

Chevrolet Traverse keys by year

Which Traverse key do you have?

The Traverse has been built across three distinct key eras, and the right answer for a lost or broken key depends almost entirely on which one is in your driveway. The first generation ran 2009 through 2017 and uses a remote-head key: a metal blade with the remote buttons built into the head. The second generation, 2018 through 2023, moved to a smart proximity fob with push-button start. The third generation, 2024 through 2026, uses a newer smart fob with a different chip and a different programming path.

The quickest check is simple. If a cut metal blade goes into the ignition, you are in the first era. If you carry a fob and press a start button, you are in the second or third. The model year on the door-jamb sticker or the VIN settles the rest. The year-by-year table on this page lists key type, chip family and programming method for each year; the text here explains what that means when you are standing next to a car that will not start. For the wider picture, see our Chevrolet key pages or the car key service overview.

• 2009–2017: remote-head circle-plus key, no push-button start offered
• 2018–2023: smart proximity fob, push-button start
• 2024–2026: new-generation smart fob, programming validated through GM's servers

What does a 2009–2017 Traverse need?

These are the most straightforward Traverses to key. The data we work from lists an ID46 transponder (the PK3+ circle-plus, Hitag2 family) for every year from 2009 through 2017, and that listing is verified. It is the same circle-plus remote-head key shared with the Buick Enclave, GMC Acadia and Saturn Outlook family, which is useful to know if you are comparing parts.

Programming is done through the OBD port, and no special manufacturer-registry access is listed as required for these years. GM also built an onboard relearn procedure that covers all-keys-lost on most PK3+ vehicles without special tooling, though a professional programming tool through the OBD port is the faster way to do it. Either way, this era is one where we can usually finish the job at your vehicle with a new key cut and programmed.

The Traverse of this era is also where hardware-store copies cause the most grief. A blade cut without a transponder chip will open the doors and turn the lock, then the engine simply will not start. It looks like a good copy and is not one. If someone has handed you a cheap duplicate that does not start the car, bring it along; we can sometimes tell what went wrong in a minute of looking.

What about 2018–2023 proximity fobs?

From 2018 the Traverse uses a smart proximity fob. For 2018 through 2020 it is the HYQ4EA fob with a 46E (Hitag2 Extended) transponder, and that listing is verified. Push-button start is standard, and the fob has a hidden emergency blade that still opens the driver's door when the fob battery is dead.

The 2021 through 2023 years are where we stay careful. Those are HYQ4ES-era fobs, and parts catalogs disagree: some list a 46E chip, others list an NXP Hitag Pro ID49. We do not treat either listing as settled. Before quoting, we confirm the exact setup from the FCC ID printed on the fob, and by VIN where there is no fob to read. Ordering the wrong fob is an easy and annoying mistake with these years, so we would rather ask a few questions first than guess.

For all of 2018 through 2023, the data shows programming through the OBD port with no special credentialed server access listed. A fob that has been cut off from the car by a dead battery is a different problem from a fob that is gone; we treat them separately, as the next sections explain.

How are 2024–2026 Traverse keys different?

The new-generation Traverse uses the YG0G21TB2 smart fob, which takes a CR2450 battery and carries an NXP Hitag Pro (ID49, 128-bit) transponder. That chip data is verified for 2024, 2025 and 2026.

The important difference is on the programming side. Key programming on these vehicles is validated online through GM's servers. Where you still have a working key and need an extra one, that is one situation. Where every key is gone, the job may require GM server access (ACDelco SPS2) with NASTF VSP-credentialed tooling, or dealer service, depending on the tool involved. We confirm which applies on each job rather than promising an outcome before we have looked at the vehicle.

Put plainly: for this generation, some all-keys-lost jobs may end up being a dealer job. If that is what your vehicle turns out to need, we will tell you before any work starts, not after. Call (213) 577-1366 with your VIN and we can give you an honest read on the likely route.

Duplicate key or all keys lost: how do they differ by era?

Across every Traverse year in our data, duplicating a key requires an original key, and all-keys-lost replacement is possible. The difference is how much work stands between you and a running engine.

With a working key in hand, adding a spare is the lighter-effort job in every era. The existing key gives the process something to work from, and the new key is cut (if it has a blade) and programmed to the vehicle. If you only have one key left on a 2009–2017 Traverse, getting a spare now is cheaper in time and effort than waiting until it is lost or the blade wears out.

With no key at all, the work goes up. On the 2009–2017 and 2018–2023 vehicles, we program a new key through the OBD port, starting from the VIN to cut or order the correct key. On 2024–2026 vehicles, the GM server requirement described above becomes the deciding factor.

Whichever you are facing, do not keep trying fobs and batteries that fail, and do not tow the car until you have called. In many cases we can come to the vehicle with our mobile service vans.

• Spare key with one working key: the lighter job, in every era
• All keys lost, 2009–2017: OBD programming, or GM's onboard relearn on most PK3+ vehicles
• All keys lost, 2018–2023: OBD programming after we confirm the fob type
• All keys lost, 2024–2026: route confirmed per job; may need GM server access or dealer service

Is Traverse key programming OBD or dealer-only?

For nearly every Traverse year in our data, the programming method is OBD, meaning we plug a programming tool into the port under the dash and program the new key to the vehicle's computer. For 2009 through 2023, no NASTF or SDRM registry access is listed as required.

For 2024 through 2026, the data shows OBD as the method, but the requirement for registry credentials is not settled: it depends on the tool and the situation, and GM validates programming through its servers. That is why we say we confirm per job rather than claiming we can always do it, or always cannot.

California also requires locksmith companies to hold a BSIS LCO license. Whoever you call for a car key, ask for it. A real locksmith will give you the number without hesitation.

1. You tell us the year, whether you have any key left, and what the key looks like.
2. We narrow the key type from the VIN and, for 2021–2023, the FCC ID on the fob.
3. We tell you plainly whether it is a route we can handle or one that may need the dealer.
4. If we proceed, we cut or order the correct key, program it, and test every function before we leave.

What affects the cost of a Traverse key replacement?

We do not quote numbers on a web page, because the real figure depends on facts we only learn from your vehicle. These are the factors that move the price, roughly in order of impact:

• Key type: a remote-head key, a proximity fob and a new-generation fob are different parts at different part costs
• Whether you have a working key: a spare is usually the more economical route compared with all keys lost
• Programming route: OBD jobs are simpler than those that need GM server access or dealer service
• Fob uncertainty: for 2021–2023, confirming the right fob before ordering avoids paying for the wrong one
• Location and time: a trip to your vehicle takes more effort than a key brought to our Westwood storefront
• Condition: a water-damaged or crushed fob may need replacing rather than reprogramming

What commonly goes wrong with Traverse keys?

The problems differ by era, and our data lists them clearly.

On 2009–2017 vehicles, the most common issue on high-mileage Traverses is worn ignition lock wafers. A second pattern is a worn key blade that no longer turns the lock even though the chip inside still works; the key reads fine, but the metal is tired. And, as above, copies cut without a transponder open the doors but will not start the engine.

On 2018–2026 fobs, the most common complaint is a dead fob battery: the dash reports 'no remote detected,' yet the hidden emergency blade still opens the door. That is usually a battery problem, not a lost-key problem, so check before assuming the worst. Water-damaged or crushed fobs are the other common case, and those often need replacement.

Lost-fob replacement is also costlier than replacing the older bladed keys, which is a big reason to get a spare made while you still have a working fob.

When should you call us instead of the dealer?

Call us first for most Traverse key situations in 2009 through 2023, and call us to find out the likely route for 2024 through 2026. We are a storefront at 10740 Wilshire Blvd in Westwood with mobile service vans, so you can either come to us or have us come to the vehicle. That is useful when the car will not start where it is parked.

The dealer makes more sense in a few cases: when a 2024–2026 all-keys-lost job turns out to require access we cannot use, or when you need factory warranty work that includes keys. If that is your situation, we will say so. Knowing that on a first call saves you a trip.

Why call Wilshire Lock & Key?

We have been in business since 1987, and the phone at (213) 577-1366 is answered 24 hours a day, every day of the year. You reach one company, not a dispatch middleman who sends the job to whoever is closest. David, the owner and lead technician, oversees the work.

We serve 140 cities across Los Angeles and Ventura counties, so whether you are near Westwood or well outside it, the call is the same. For a general question, use the contact page, or start from our home page to see everything we do.

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