[Completed] 2016 2021 key code lookup - what info do I need?

2539 views - Last reply: December 26, 2024
This topic is closed for new replies.

Looking for my 2016 2021's factory key code to program a key

Hello! We've developed a VIN-based tool to help you get your key code for the 2016 2021. Check it out here: VIN Key Code Generator.

Replies (5)

Has anyone gotten this method to work on a 2016 2021 before?

My mechanic said this might help with my 2016 2021 key issue.

My 2016 2021's key code has been a nightmare. Trying this now.

Hope this method is better than the last one I tried on my 2016 2021.

Where exactly do you find the key code on a 2016 2021?

Check the news !

Rally Car Experience Day
🚙 Local Meetup: Rally Car Experience Day
No trophies, just cool cars and cool people

🏁 Where: Shopping Mall Parking Lot
📆 When: August 6 @ 10AM-5PM

Event features:
Poker Run | Scavenger Hunt

⚙️ Forum Members: Post your ride in our event discussion thread! ✨

🧰 Brake System Masterclass

👨‍🏫 Instructors:
• Restoration Pro Alex Petrov
• Race Engineer Emily Torres

🔌 Hands-On Activities:
• Roll cage installation demo
• 6-hour intensive training
• Personal coaching

📅 Skills Covered:
Color matching | Clear coat application | Scratch repair

🚙 August 16, 2026 at 1:00 PM (6-hour)

✨ Take home custom workshop manual!

Workshop: Brake System Masterclass
Forced Induction Tuning Lab

🏁 Forced Induction Tuning Lab

🔧 Instructor: Drivetrain Engineer Sarah Wong

💻 Workshop Includes:
• Live dyno tuning demonstrations
• 4-hour intensive hands-on training
• Cooling system optimization | Heat management

📈 Bonus: Custom tune file included

⏱️ Next Session: August 3, 2026 at 3:00 PM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Insight: Suspension mods should match your intended use (street vs track)

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

Cost & Options
Quality aftermarket keys work well for most vehicles at lower cost. However, some luxury brands use proprietary technology only available through dealers. For expensive cars, OEM may be worth the extra cost for reliability.
Key Tip: Store your key code separately from your keys
Key Fob Issues
Sometimes. Broken buttons can often be fixed by cleaning or replacing the button pad. Cracked cases can be glued. However, water damage or circuit board issues usually require complete fob replacement. Reprogramming is still needed for replacement fobs.
Key Tip: Newer cars often require dealer programming for first key replacement
Security Systems
Not recommended. Bypassing requires specialized knowledge and may violate anti-theft laws. Proper solutions: 1) Get correctly programmed keys 2) Replace faulty immobilizer components 3) Have dealer reset the system if keys are lost.
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 Tip: Consider key insurance for expensive smart keys
Key Programming
Programming syncs the key's transponder chip with your car's immobilizer system. The process varies by manufacturer but generally involves: 1) authenticating with the car's computer 2) erasing old keys if needed 3) programming new key codes 4) testing functionality.
Key Fact: Some luxury car keys can cost $800+ to replace at dealerships

🔑 KEY SERVICES CLASSIFIEDS

Lost Car Key Replacement
$120+
Posted: Jul 21, 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: 650-341-2152
Transponder Key Duplication
$65+
Posted: Jul 18, 2026
Get spare keys made before you lose yours! Cuts and programs most transponder keys on the spot. Cheaper than dealerships. 15+ years experience.
Call: 665-867-5925
Anti-Theft System Repair
$85+
Posted: Jul 23, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 395-443-2406
Dealer Alternative Key Service
40% Less
Posted: Jul 19, 2026
Same quality as dealership without the markup. We have the same programming tools but charge significantly less. All major European, Asian, and domestic brands.
Call: 634-965-3549
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Workshop
Aug 12, 2026

Lost Key Solution Roadshow

by Auto Key Masters
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Workshop
Aug 9, 2026

Car Security Certification Course

by Car Key Solutions
Solutions for when all keys are lost - from code pulling to immobilizer resets
Workshop
Aug 12, 2026

Car Security Certification Course

by Immobilizer Experts
Hands-on training for programming transponder keys, smart keys, and fobs using professional tools
Workshop
Aug 15, 2026

Transponder Key Tech Day

by VIN Decoder Pros
Live demonstration of the latest anti-theft technologies and bypass prevention methods

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