TextYukon Key Generations 1995 to 2025
GMT800 Platform, Transponder Key
GMT400 1995-1999. VATS-era resistor pellet keys, 15 possible resistance values. No transponder chip; the ignition reads ohms off a tiny pellet in the blade and times you out for four minutes on a wrong read.
GMT900 Platform, Remote Head Key
GMT800 2000-2006. PassLock immobilizer with no transponder chip in the key at all. The system reads a Hall sensor in the ignition cylinder; the BCM has to be re-paired after any cylinder work. Common East County call.
K2XX Platform, Flip Key
GMT900 2007-2014. PK3+ with the Philips ID46 (Crypto 2) chip embedded in the key head. Two-key on-board procedure works for adding a third; all-keys-lost needs PIN extraction through the OBD port.
T1XX Platform, Smart Key
K2XX 2015-2020 introduced the sidewinder laser-cut blade and proximity fob. T1XX 2021-2025 runs M3N-32337100 FCC with Global B immobilizer. Server auth required on the T1XX.
Identify Your Yukon Key
VATS-era pellet key. No chip in the head, no battery; the resistance value in the blade has to match the column reading. GMT400 1995-1999.
PassLock-era ignition key. No transponder chip in the key; immobilization sits in the cylinder Hall sensor. GMT800 2000-2006.
Remote-head transponder with Philips ID46 (Crypto 2). Standard blade on most trims, flip-key on later builds. GMT900 2007-2014.
Sidewinder proximity fob. K2XX (2015-2020) or T1XX (2021-2025) with M3N FCC.
Yukon Key Pricing in San Diego
Pricing covers the key, blade cut, programming, full test. No trip fee anywhere in San Diego County. Standalone lockout $105-$145.
EZ Car Keyz vs. San Diego GMC Dealer
Same warranty as the dealer. Difference is the dealer wants a tow plus 3 to 5 days. We come to you.
Skip the Dealer - Call or Text: (619) 876-1271Yukon Problems We Fix in San Diego
2010+ Relay Theft Vulnerability
Yukon T1XX and K2XX builds from 2010 onward are subject to relay theft attacks. A June 2025 class-action lawsuit names GM over the issue. We install RFID-blocking pouches and pair-test on-site after any aftermarket immobilizer work.
Sidewinder Blade Wear (2015+)
K2XX and T1XX sidewinder cuts wear quickly with heavy keychains. Fresh cut on the Condor solves most sticky ignitions.
PK3 Global B Auth Drops on T1XX (2000-2014)
Older Yukons drop immobilizer sync after 15-plus years. Dash lights, no crank. We re-pair with the BCM PIN on-site.
Global B Auth Drops on T1XX
2021+ Yukons sometimes drop the trust chain after 12V events. We rebuild auth on-site with current firmware.
Can You Program a Yukon Key Yourself?
No on VATS. The pellet resistance has to be measured on a multimeter and a fresh blank cut to match, then the blade has to be cut to your lock code. Both steps need shop equipment.
Sort of on GMT900 PK3+. Two-key on-board procedure adds a third if you already have two working keys. New key still has to be cut and the ID46 chip written first.
No on K2XX. Sidewinder blade cut on a code machine plus proximity pairing through OBD. Pro tools required.
No on T1XX. Global B server auth required, licensed equipment only.
How It Works
Call or Text Us
Text or call (619) 876-1271.
We Drive to You
Truck meets the Yukon anywhere county-wide.
Cut, Program, Test, Done
Blade cut on the Xhorse Condor (sidewinder or standard), chip programmed through OBD, Global B server auth if T1XX.
Related Services
Yukon Trivia
The Yukon launched in 1992 as GMC's full-size SUV alongside the Chevy Tahoe and Suburban. Across five generations the platform progressed GMT400 to GMT800 to GMT900 to K2XX to T1XX. The 2010-onward Yukon is named in a June 2025 class-action lawsuit over relay-amplification theft, where thieves capture the proximity fob signal from outside a closed garage. RFID-blocking pouches are the easy at-home defense.
KEY REPLACEMENT ACROSS ALL OF SAN DIEGO COUNTY
We come to you, anywhere in San Diego County. No shop visit, no towing. Our mobile locksmith arrives at your home, office, or roadside.
GMC Key Service Demo
Watch a GMC proximity fob get programmed at the owner's location.
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Sierra, Yukon, Terrain. Every GMC covered across San Diego County.
