A smart key is the type of key your 2016 GMC Yukon uses. It combines a physical key blade with an electronic transponder chip and 6 buttons for remote functions. The chip communicates with your GMC's Theft Deterrent system and BCM to authorize the engine to start. If the blade breaks but the electronics are still intact, we can often transplant the chip into a new key shell and save you the cost of a full replacement.

2016 GMC Yukon
Licensed Mobile Key Replacement in Ventura County

Q: My GMC says key not detected. What do I do?

Start with the basics. Replace the fob battery, since a dead or weak battery is the most common cause. If you have a push-to-start GMC, try holding the fob directly against the start button and pressing the brake. On GM trucks, a persistent "Service Theft Deterrent System" message can indicate an antenna or chip recognition issue rather than a dead fob. A 2011 Sierra owner reported this exact problem and traced it to the immobilizer not reading the key's transponder. A 2022 Canyon owner had intermittent no-starts with the same message and the dealer could not find a definitive fix. If a fresh battery does not solve it, call us for a diagnosis.

Q: What is the FCC ID for the 2016 GMC Yukon key?

The FCC ID is HYQ1AA, M3N-32337100. This identifier on the back of your fob tells us exactly which replacement key your vehicle needs. If your key is broken or damaged and you can still read the FCC ID on the old fob, give it to us when you call. It speeds up the process and guarantees we bring the exact right key to your location.

Q: Is all-keys-lost more expensive than a regular replacement?

Yes. When you still have one working key, adding a spare on many GM trucks can be as fast as a one-minute on-board procedure. When all keys are lost, the Theft Deterrent system requires a full 30-minute security relearn with three 10-minute wait cycles. In worst-case scenarios where the BCM locks into anti-theft mode, a Terrain owner was quoted over $1,500 at the dealer for module replacement. With us the gap is smaller, but AKL still costs more because of the extra work involved. Get a spare made while you still have a working key.

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2016 GMC Yukon
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2016 GMC Yukon Smart key Replacement - Fast, Affordable & Professional

A college student home for break was staying at an apartment in Ventura with visitor parking. Her 2016 GMC Yukon needed a key replacement and she'd already had a bad experience. Another locksmith had tried to program a key to her car, failed, left error codes in the body control module, and charged her $150 for "the attempt." The car now wouldn't accept any key at all.

She found me online, read my reviews, and called. She was upfront about being nervous.

I plugged my IM608 into her OBD port and saw the mess immediately. A stack of fault codes from the incomplete programming and a BCM stuck in a confused state. I cleared the codes, verified the module was clean, then ran a proper GM key learning sequence from scratch. Her smart key, FCC ID HYQ1AA, was a 6-button push-to-start fob. The previous locksmith had tried to force a programming method that didn't match her model year, which is how the BCM got confused. I showed her the confirmation on my screen so she could see the key was fully learned this time.

Her car started clean. Total was 266. The dealer wanted 455 to fix what the other locksmith broke. I didn't charge extra for the cleanup because cleaning up the mess is part of doing the job right.

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Kim S.

Jul 2025

★★★★★

“This is the only locksmith anyone should ever call. I am still shocked at how fast he arrived and the price was hundreds less than other quotes I received. Honest, professional, and extremely efficient.”

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frankborja25

Dec 2019

★★★★★

“We had one broken key for our Honda Civic and one working key for our Lexus. Tim came out and cut three remote car keys at a great price. All keys worked perfectly. Professional, courteous, and highly recommended.”

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Incognitomlo88

Jul 2025

★★★★★

“Tim was GREAT. I honestly swear he must have had my keys made before he even showed up. The entire process was insanely fast, from the initial phone call to having the keys in my hand. No one will beat the pricing, efficiency, or outstanding service.”

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What to Do When You Lose Every GMC Key

Mobile service FAQ

My key broke in the ignition. Can you get it out?▼

Yes. Broken key extraction is a standard job for a mobile automotive locksmith. We use specialized tools to remove the broken piece without damaging your GMC's ignition cylinder. Once it is out, we can cut a new key from the extracted piece or from your vehicle's lock data and program it on the spot. On older GM trucks with ignition wear, owners describe doing ignition replacements in 30 to 45 minutes themselves. A professional locksmith can often extract the broken piece and get you going without replacing the entire cylinder.

What is a smart key?▼

My GMC says key not detected. What do I do?▼

What is the FCC ID for the 2016 GMC Yukon key?▼

Is all-keys-lost more expensive than a regular replacement?▼

Questions? Call (805) 790-8162