[Solution] Key code sticker faded - how to find code for Classic 1500 Extended Cab GMC

2575 views - Last reply: January 19, 2025
This topic is closed for new replies.
Bluescreen
Member since February 2023 • 146 posts

Need my Classic 1500 Extended Cab GMC's key code to program a new transponder key

Posted on January 19, 2025
Adminbot
Staff Member • 1974 posts

Hello! We've developed a VIN-based tool to help you get your key code for the Classic 1500 Extended Cab GMC. Check it out here: VIN Key Code Generator.

Posted on January 20, 2025

Replies (5)

Icedragon
Member • 103 posts

Can confirm it worked for my 2013 Classic 1500 Extended Cab GMC.

January 20, 2025 Reply
Ironman
Member • 72 posts

My Classic 1500 Extended Cab GMC's been in the garage for a week over this. Thanks!

January 21, 2025 Reply
Kungfupanda
Member • 70 posts

I tried this with my Classic 1500 Extended Cab GMC but still no luck. Any suggestions?

January 22, 2025 Reply
Deltaforce
Member • 68 posts

My Classic 1500 Extended Cab GMC won’t start without that code. Following this closely.

January 23, 2025 Reply
Pandaking
Member • 10 posts

Can confirm it worked for my 2013 Classic 1500 Extended Cab GMC.

January 24, 2025 Reply

Check the news !

Off-Road & 4x4 Jamboree
🏎️ Local Meetup: Off-Road & 4x4 Jamboree
No trophies, just cool cars and cool people

🗺️ Where: Community College Campus
⏰ When: May 16 @ 11AM-6PM

Event features:
Car Audio Competition | Model Car Show

🔩 Forum Members: First 50 forum members get free dash plaques! 👍

🧰 Electrical Diagnostics Lab

👨‍🏫 Instructors:
• Restoration Pro Alex Petrov
• 4x4 Builder Mark Jensen

🔌 Hands-On Activities:
• Differential rebuild workshop
• 4-hour intensive training
• Personal coaching

📅 Skills Covered:
Paint decontamination | Polishing | Protective coatings

🚙 May 19, 2026 at 1:00 PM (4-hour)

✨ Limited to 15 participants - reserve your spot now!

Workshop: Electrical Diagnostics Lab
Carburetor to EFI Conversion Clinic

🏁 Carburetor to EFI Conversion Clinic

🔧 Instructor: Drivetrain Engineer Sarah Wong

💻 Workshop Includes:
• Live dyno tuning demonstrations
• 4-hour intensive hands-on training
• Turbo sizing | Intercooling | Wastegate control

📈 Bonus: Custom tune file included

⏱️ Next Session: May 5, 2026 at 10:00 AM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Remember: More power means you'll need better brakes and tires

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

Common questions about key programming, fob issues, and replacement options

Lost Keys
1) Contact a locksmith who specializes in automotive keys or your dealership 2) Provide proof of ownership (registration, title, ID) 3) They'll either cut new keys by code or reprogram your car's system 4) This is expensive ($200-$800) as the immobilizer may need resetting.
Key Tip: Store your key code separately from your keys
Key Programming
Professional key programming requires: diagnostic tools to access the immobilizer system, key code software, transponder programmers, and often proprietary manufacturer equipment. Some locksmiths and all dealers have these tools.
Key Programming
Common reasons: wrong key type for your vehicle, anti-theft system needs reset, low car battery voltage during programming, or the key isn't properly synced. Some cars also have programming limits (only 2-4 keys can be registered).
Key Tip: Keep spare keys in a faraday bag to prevent signal amplification theft
Key Programming
Professional key programming requires: diagnostic tools to access the immobilizer system, key code software, transponder programmers, and often proprietary manufacturer equipment. Some locksmiths and all dealers have these tools.
Lost Keys
Dealerships can often cut keys using your VIN, but will require proof of ownership. This only works for original factory keys - aftermarket or previously replaced locks won't match. The key will still need programming to start the car if it has a transponder.
Key Fact: Key programming typically takes 15-30 minutes for professionals

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Apr 26, 2026
Professional car key programming for most makes/models. We come to you! Transponder keys, fobs, and smart keys. Same-day service available. All work guaranteed.
Call: 668-533-5692
Lost Car Key Replacement
$120+
Posted: Apr 20, 2026
Lost all your keys? We can cut and program new ones even without originals. Dealership alternative at 40% less. Proof of ownership required. Serving all major brands.
Call: 467-335-3427
Immobilizer System Reset
$95+
Posted: Apr 20, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 216-602-9206
Smart Key Programming Special
$150
Posted: Apr 28, 2026
Push-to-start key replacement for Toyota, Honda, Nissan, Ford. Includes programming and testing. Limited time offer - normally $200+. Call for availability.
Call: 718-837-2354
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Workshop
May 15, 2026

Lost Key Solution Roadshow

by Locksmith Pro
Become certified in vehicle security systems with our intensive 2-day course
Seminar
May 28, 2026

Anti-Theft System Demonstration

by VIN Decoder Pros
Learn dealer-level programming techniques normally only available at franchise shops
Workshop
May 17, 2026

VIN Decoding Workshop

by Immobilizer Experts
In-depth class covering push-to-start systems and proximity key programming techniques
Workshop
May 11, 2026

Smart Key Programming Class

by Locksmith Pro
Hands-on experience with the newest transponder key cloning and programming equipment

Need immediate service? Call our 24/7 hotline: 1-800-KEY-HELP

Want to list your key service? Join our provider network

Last posts on the forum