2010 Mercedes-Benz GLC (incl. GLK) Key Replacement in LA

The 2010–2015 GLC (incl. GLK) uses the same key setup, so everything on this page applies to those years too. The full picture is on the Mercedes-Benz GLC (incl. GLK) key guide.

2010 Mercedes-Benz GLC (incl. GLK): key facts

Key type: Smart / proximity key
Push-to-start: No
Transponder chip: DAS3/FBS3 (infrared rolling-code SmartKey)
Programming: EEPROM
All keys lost: We can originate new keys on site

GLK (X204) — covered under the GLC slug as its direct predecessor. The X204 shares the W204 C-Class FBS3 architecture (NEC-based EIS); Silca's Mercedes key-programming catalog lists the GLK X204 slot key as FBS3 with all-keys-lost support, and XTool's Mercedes all-keys-lost adapter lists the GLK as well, so specialist all-keys-lost via EZS password calculation is routine. We still re-confirm tool coverage per job.

What kind of key does a 2010 GLC (GLK) use?

In 2010 this vehicle was sold as the GLK, the X204 generation. We cover it on our Mercedes-Benz GLC page because the GLC is its direct successor. The key is an infrared, rolling-code SmartKey on Mercedes' DAS3/FBS3 system. That chip family is verified against several key-supplier references, not guessed.

This model year is not push-to-start. You are not pressing a start button with the key in your pocket. The SmartKey is a fob with a built-in emergency blade, and it is tied electronically to the car's ignition module. The mechanical backup key is part of the package, so the door can be opened by hand if the fob dies.

For you, that means a blank from a hardware store will not work. A replacement has to be cut to the right profile and then paired to the car's electronics before it will start the engine.

Can you duplicate it, or only replace it if every key is lost?

Both are possible on this year. An original key is not required to make a new one, and all-keys-lost is a job we can do. Programming on this setup is done through the EEPROM method, and our data shows no NASTF/SDRM secure-data registration is needed for this year.

The GLK X204 shares its architecture with the W204 C-Class: an FBS3 system with an NEC-based electronic ignition switch (EIS, also called EZS). Silca's Mercedes key-programming catalog lists the GLK slot key as FBS3 with all-keys-lost support, and XTool's Mercedes all-keys-lost adapter lists the GLK too. In practice, that means all-keys-lost work, which relies on calculating the EZS password, is routine for a specialist. We still re-confirm tool coverage on each job.

You have one working key: we can copy and pair a spare, which is the easier path.
You have no keys at all: we can still make a working key, but the work is longer and more involved.
Your key is worn or acting up: bring it along, since a failing key is worth testing before anything gets replaced.

What if the key is not the actual problem?

On these SUVs, a key that will not work is not always a bad key. Before we cut or program anything, we check for the known trouble spots on this year:

Electronic steering lock (ESL/ELV) failure: the dash wakes up, but the key will not turn even though the key is good.
A failed or worn EIS/EZS ignition module: the car does not recognize the key, or the key will not turn.
Aging SmartKey electronics that stop syncing with the car.
A dead key-fob battery: the remote buttons fail first, and this is the lightest fix of the four.

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 2010 GLC (GLK) key?

We do not quote numbers on a web page, because the real answer depends on your car's situation. These are the factors that move the cost:

Whether you have a working key to copy from, or all keys are lost.
How many keys you want made, since a spare made during the same visit is usually the more economical route than a second trip.
Whether the ignition module or steering lock turns out to be the failed part, which is a repair separate from the key.
Whether the fob only needs a battery or needs to be replaced and paired.
Where the car is, and whether it needs to be reached by van or can come to our storefront.

How we handle it, and what we confirm by VIN

The data for this year is verified, but the GLK and GLC share one page here, and some of the tool-coverage detail comes from catalog listings. So we do not treat the listing as the last word. We confirm the exact key and programming path by VIN and in person on every job. Each step below is part of that.

California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for it before they start work on your car. Our license number is being added to this site. In the meantime, contact us with any questions.

Wilshire Lock & Key has been in business since 1987, with a storefront at 10740 Wilshire Blvd in Westwood and mobile vans. You deal with one company, not a dispatch middleman, and David oversees the work. For other models, see our Mercedes-Benz key page or the broader car key service overview.

Call (213) 577-1366 and give us the VIN, your location, and how many working keys you have.
We confirm the key type and tool coverage for your car and tell you which cost factors apply.
If it makes sense, we come to you with a van; otherwise you bring the car to the Westwood storefront.
We test the ignition, steering lock and any existing key to find the real cause.
We cut the key, pair it through the EEPROM method, and check that it starts the car, opens the doors, and that the backup blade turns.

Frequently asked questions

Is a 2010 GLK the same as a GLC for key purposes?

The GLK (X204) is the direct predecessor of the GLC, which is why it is covered on the GLC page. For this year, the key is an infrared SmartKey on DAS3/FBS3. We still confirm by VIN before starting.

Can you make a key if I have lost every key?

Yes. All-keys-lost is possible on this year, and no original key is needed. It involves more work than copying from a working key, and we re-confirm tool coverage for your car on the job.

Is the 2010 GLC (GLK) push-to-start?

No. This year is not push-to-start. The SmartKey is used in the ignition, and it carries a mechanical backup key for the door.

My key will not turn but the dashboard lights come on. Do I need a new key?

Not necessarily. On this year, an electronic steering lock failure can leave the dash awake while the key will not turn, even though the key is fine. A worn EIS/EZS module can cause something similar. We test first.

The buttons on my fob stopped working. Is the key dead?

The remote buttons are usually the first thing to fail with a dead fob battery. A battery is the lightest fix, but if the key still will not sync after that, aging SmartKey electronics may be the cause.

Do you need special dealer access to program this key?

Not for this year, according to our data. Programming uses the EEPROM method, and no NASTF/SDRM registration is required. We do not need to send you to a dealer.

Do I have to tow the car to you?

Often not. We run mobile vans and also have a storefront in Westwood. Call (213) 577-1366 and we will tell you which option fits your situation.

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.