[Issue Closed] Options when manual is lost for 2016 GMC Sierra 2500 HD key code

4775 views - Last reply: October 21, 2024
This topic is closed for new replies.
Ultraman
Member since March 2022 • 90 posts

Need the key code to program a replacement key for my 2016 GMC Sierra 2500 HD

Posted on October 21, 2024
Adminbot
Staff Member • 856 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 2016 GMC Sierra 2500 HD. Check it out here: VIN Key Code Generator.

Posted on October 22, 2024

Replies (3)

Jazzhands
Member • 119 posts

I tried this trick and it actually worked on my 2016 GMC Sierra 2500 HD!

October 22, 2024 Reply
Digitalnomad
Member • 97 posts

Just tried this on my 2016 GMC Sierra 2500 HD—anyone else have success?

October 23, 2024 Reply
Highvoltage
Member • 44 posts

Following closely—this could be the fix I need for my 2016 GMC Sierra 2500 HD.

October 24, 2024 Reply

Check the news !

Drift Challenge Series
🚙 Local Meetup: Drift Challenge Series
The event local car fans have been waiting for

🏁 Where: Waterfront Drive
📆 When: May 11 @ 11AM-8PM

Event features:
Tech Sessions | DIY Demonstrations

⚙️ Forum Members: Special section just for forum members! ✨

🔩 Off-Road Vehicle Build Day

👩‍🏭 Instructors:
• Custom Fabricator Mike 'Wrench' O'Connor
• 4x4 Builder Mark Jensen

⚙️ Hands-On Activities:
• Suspension geometry setup
• 6-hour intensive training
• Personal coaching

📋 Skills Covered:
Gear patterns | Bearing preload | Locker installation

🏎️ May 9, 2026 at 11:00 AM (6-hour)

💡 Special discounts on tools for participants!

Workshop: Off-Road Vehicle Build Day
Forced Induction Tuning Lab

🚀 Forced Induction Tuning Lab

⚙️ Instructor: Data Acquisition Expert Priya Patel

📊 Workshop Includes:
• Emission-legal power gains
• 4-hour intensive hands-on training
• Turbo sizing | Intercooling | Wastegate control

🔩 Bonus: Free dyno pull for first 10 signups

🏎️ Next Session: May 7, 2026 at 11:00 AM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Warning: Cheap parts often cost more in the long run due to failures

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

Cost & Options
Some comprehensive auto policies cover key replacement, often with a deductible. Homeowner's insurance may cover keys lost away from home. Always check your policy details - coverage varies widely. Claims may increase your rates.
Key Tip: Replace key fob batteries every 1-2 years as preventative maintenance
Security Systems
This means your car's immobilizer system can't read the key's transponder. Causes: dead key battery, damaged transponder chip, faulty car antenna ring around ignition, or system needs resetting. Try replacing the battery first.
Key Tip: Keep spare keys in a faraday bag to prevent signal amplification theft
Key Fob Issues
This typically indicates: weak fob battery (replace first), damaged fob antenna, or issues with your car's receiver (often in the door handle or rearview mirror). Environmental interference from other electronics can also reduce range.
Cost & Options
1) Always have at least 2 working keys 2) Get spares made before losing originals 3) Consider key insurance/add-on coverage 4) Store key codes safely 5) Use protective cases for smart keys 6) Program new keys before old ones fail completely.
Security Systems
A flashing security light often indicates an immobilizer issue. Solid light suggests the system is armed but not recognizing your key. Causes: faulty key chip, damaged antenna ring, low battery, or system needs reprogramming.
Key Fact: Smart keys use radio frequencies between 125 kHz and 2.4 GHz

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Apr 24, 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: 952-590-4990
Smart Key Programming Special
$150
Posted: Apr 22, 2026
Push-to-start key replacement for Toyota, Honda, Nissan, Ford. Includes programming and testing. Limited time offer - normally $200+. Call for availability.
Call: 813-864-7078
Car Key Extraction Service
$45+
Posted: Apr 25, 2026
Broken key stuck in ignition or door? We can remove it without damage and make new keys same day. Emergency service available 24/7 for lockouts.
Call: 831-640-2811
Anti-Theft System Repair
$85+
Posted: Apr 25, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 469-748-0780
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 22, 2026

Anti-Theft System Demonstration

by VIN Decoder Pros
Solutions for when all keys are lost - from code pulling to immobilizer resets
Workshop
May 19, 2026

Key Fob Repair Training

by The Key Lab
Learn how to extract key codes from VIN numbers and decode vehicle security information
Workshop
May 26, 2026

Dealer-Level Programming Workshop

by VIN Decoder Pros
Solutions for when all keys are lost - from code pulling to immobilizer resets
Workshop
May 2, 2026

Mobile Key Programming Clinic

by Immobilizer Experts
Step-by-step instruction for repairing common key fob issues including button and circuit problems

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