2020 GMC Yukon
Key Replacement by a Certified Pro in Santa Barbara County

Q: Do I need to tow my car to the dealer if I have no keys?

Not for most GMC models. A mobile locksmith with the right tools and credentials can handle all-keys-lost right where the vehicle sits. GMC dealers default to telling you to tow because they need the truck in their bay. A Yukon XL owner who trailered the SUV to the dealer ended up without it from Friday through Monday while they waited for an electrical tech. A GMT800 Sierra/Yukon owner was told they "might have to have it towed to be programmed." We come to you. The only exceptions are certain very new models with restricted programming, and we tell you upfront if that applies.

Q: How long does an all-keys-lost replacement take?

On site, most GMC AKL jobs take 30 to 45 minutes. The GM Theft Deterrent system requires a security relearn with three 10-minute wait cycles before the first key is accepted. Once that first key is learned, additional keys are added in about a minute each using the fast two-key procedure. At the dealer, a Yukon XL AKL job stretched from Friday to Monday because of tech availability. Another dealer quoted "2 hours" for what turned out to be about 30 minutes of actual work. We do the same 30 minutes at your location without the dealer overhead.

Q: What battery does the 2020 GMC Yukon key fob use?

The 2020 GMC Yukon uses a CR2032 battery. When we do an all-keys-lost job, the new key always comes with a fresh battery installed. You will not need to worry about battery life on your new key for a long time. We also recommend keeping a spare battery at home once you have your key, since a dead fob on a GMC push-to-start system can leave you unable to start the truck even though the vehicle is fine.

Q: Can you make a spare at the same time so I have two keys?

Yes, and we strongly recommend it. On GM trucks, the all-keys-lost security relearn takes about 30 minutes for the first key. Once that key is learned, adding a second key takes about a minute using the fast procedure. Getting both keys done in one visit saves you from ever paying for another AKL job. Late-model GM systems often require two programmed keys to fully exit programming mode and clear the "Ready for remote 2" status. Doing both at once is cheaper and keeps the truck happy.

Licensed, Certified, and Proven

Available Wednesday

Smart Key

Transponder

CA BSIS LICENSE LCO#6792

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min arrival

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2020 GMC Yukon
Key Options

Certified technicians with 8+ years of experience

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Locked Out? Compare the Solutions

All keys lost - two very different solutions

EZ Car Keyz

Dealership

Average Cost

✓ $$

✕ $$$$

Location

✓ We come to you

✕ You drive there

Wait Time

✓ 20-45 min

✕ 2-5 days

Same-Day

✓ Yes

✕ Rarely

All Keys Lost

✓ No problem

✕ Tow required

OEM Quality

✓ Yes

EZ Car Keyz wins 5 out of 6

Lost all your keys? No tow truck needed

Need Help? (805) 790-8162

2020 GMC Yukon Smart key Replacement - Fast, Affordable & Professional

The OEM versus aftermarket question on 2020 GMC Yukon keys deserves a straight answer. OEM GMC keys come from GM's supplier with the GMC logo on the housing, factory shell, factory chip, and factory price tag. Aftermarket keys use the same blade profile, same chip type, same button layout, and same circuit board design. The functional difference in daily use is zero if the aftermarket blank is quality.

A warehouse supervisor at the industrial park in Santa Barbara asked me point-blank whether the key would be "as good as dealer." He had a 2020 GMC Yukon and wanted a spare he could use as his daily key, not just something he threw in a drawer. Fair question, and it deserves an honest answer.

I carry aftermarket blanks tested across hundreds of GM jobs. The blade is the same HU100 profile cut to spec on my machine. The transponder chip is the same family the body control module expects. His fob, FCC ID HYQ1AA, was a 6-button smart key. The aftermarket housing I used has the same button feel, same weight, same snap-fit. The difference is no GMC logo on the back and roughly $150 less in his pocket. I used my HU100 Lishi to decode his lock and verify the blade cuts before handing it over.

His total was 294. Dealer charges 499 for the OEM version. Where aftermarket goes wrong is when a locksmith buys the cheapest blanks available. Thin shells that crack in a month, chips that throw intermittent errors. I test every batch before it goes in my van. If the quality is off, I return it.

GMC Yukon Key by Certified Technicians

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Certified Pro (805) 790-8162 Text Us

BSIS Licensed

LCO#6792

CA Bureau of Security & Investigative Services

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National Automotive Service Task Force

Fully Insured

Liability & vehicle damage coverage

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Quality Work, Honest Price

OEM quality at honest rates

2020 GMC Yukon

Smart key | OEM Quality, Fair Price

30-35 min

Rapid Response

Available Today

Santa Barbara

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805 Area

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Real GMC Trust, Real Reviews

What certified service looks like in reviews

M

Miston

Dec 2025

★★★★★

“My ignition would not turn in La Jolla and I thought I needed a tow. EZ Car Keyz repaired the ignition on the spot and also made a spare key for safety. The technician worked carefully and confidently.”

Google Review

T

TJ P.

Jun 2025

★★★★★

“About 15 minutes after calling, he was already at my home. I had lost my original Ford key and he made and programmed a new one on the spot. Very fast, very professional.”

Google Review

J

Jennifer R.

Feb 2024

★★★★★

“The dealership quoted me $600 for a new Honda key. EZ Car Keyz did it for $225, same day, cut and programmed at my house. Works perfectly. Everyone should know this is an option.”

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EZ Car Keyz technician with satisfied customer

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Trusted Pros (805) 790-8162

What to Do When You Lose Every GMC Key

What to expect when we arrive

I lost all my GMC keys. Can you still make a new one?▼

Yes. All-keys-lost is one of the most common calls we get, and we handle it on site for most GMC models. The process involves a full security relearn through the Theft Deterrent system. On many GM trucks, this is a 30-minute procedure with three 10-minute wait cycles where the key sits in the ON position until the security indicator goes out. Once the first key is learned, additional keys program in about a minute. We come to wherever the vehicle is in Santa Barbara, El Capitan State Beach area and do the entire job on the spot.

Do I need to tow my car to the dealer if I have no keys?▼

How long does an all-keys-lost replacement take?▼

What battery does the 2020 GMC Yukon key fob use?▼

Can you make a spare at the same time so I have two keys?▼

Questions? Call (805) 790-8162