[Free Fix] Do I need a dealer for McLaren M24B immobilizer reset?

4761 views - Last reply: May 23, 2025
This topic is closed for new replies.
Xrayvision
Member since November 2022 • 77 posts

Where's the key code hidden on a McLaren M24B for key programming?

Posted on May 23, 2025
Adminbot
Staff Member • 721 posts

Hello! We've developed a VIN-based tool to help you get your key code for the McLaren M24B. Check it out here: VIN Key Code Generator.

Posted on May 24, 2025

Replies (6)

Youngturk
Member • 11 posts

Really need the key code for my McLaren M24B, thanks for sharing!

May 24, 2025 Reply
Netsurfer
Member • 99 posts

Can’t believe this worked on my McLaren M24B. Huge thanks!

May 25, 2025 Reply
Digitalx
Member • 10 posts

Hope this method is better than the last one I tried on my McLaren M24B.

May 26, 2025 Reply
Charlie
Member • 12 posts

Trying to avoid a $300 fee at the dealer for my McLaren M24B.

May 27, 2025 Reply
Whiterabbit
Member • 119 posts

Trying to reprogram a new key for my McLaren M24B—need the code first.

May 28, 2025 Reply
Crazycat
Member • 26 posts

Trying this on my McLaren M24B later. Will report back.

May 29, 2025 Reply

Check the news !

Lowrider Spectacular
🚙 Local Meetup: Lowrider Spectacular
Where car culture comes alive in your community

🏁 Where: Regional Airport (static display area)
📆 When: May 23 @ 12AM-5PM

Event features:
Show 'n Shine | Dyno Challenge | Parts Swap

⚙️ Forum Members: First 50 forum members get free dash plaques! ✨

🔧 Classic Car Restoration Workshop

👨‍🔧 Instructors:
• Safety Inspector Robert Yang
• Custom Fabricator Mike 'Wrench' O'Connor

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

📝 Skills Covered:
ECU mapping | Air/fuel ratios | Dyno tuning

🚗 May 14, 2026 at 9:00 AM (6-hour)

🔥 Free parts giveaway for all attendees!

Workshop: Classic Car Restoration Workshop
Street to Strip Tuning Workshop

🔋 Street to Strip Tuning Workshop

🧰 Instructor: Suspension Guru Alex Petrov

📱 Workshop Includes:
• Component selection guides
• 6-hour comprehensive hands-on training
• NVH reduction | Drivability tuning | Daily driver balance

📉 Bonus: Live Q&A replay available

🔌 Next Session: May 3, 2026 at 9:00 AM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Pro Tip: Supporting mods (fuel system, cooling) are often needed for big power gains

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

Lost Keys
Locksmiths or dealers can: 1) Decode your door or ignition lock to determine key cuts 2) Access your car's key code through manufacturer databases (with proof of ownership) 3) Program new transponder keys using diagnostic equipment.
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.
Key Programming
Some vehicles allow DIY key programming using specific sequences (like turning ignition on/off with original keys). However, most modern cars require specialized equipment only locksmiths or dealers have. Check your owner's manual for your specific model.
Key Tip: Consider key insurance for expensive smart keys
Security Systems
Some systems reset by: 1) Disconnecting battery for 15+ minutes 2) Using original keys in specific sequences 3) Professional diagnostic reset. Consult your manual - procedures vary. Persistent issues may require dealer-level tools.
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

Smart Key Programming Special
$150
Posted: Apr 25, 2026
Push-to-start key replacement for Toyota, Honda, Nissan, Ford. Includes programming and testing. Limited time offer - normally $200+. Call for availability.
Call: 330-818-1924
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: 436-928-0334
Fleet Key Programming
Call
Posted: Apr 21, 2026
Commercial key services for businesses with multiple vehicles. Bulk discounts available. We can handle all your company cars, trucks, and fleet vehicles.
Call: 559-634-6483
Vintage Car Key Restoration
$55+
Posted: Apr 19, 2026
Specializing in classic car keys (pre-1990). Can reproduce hard-to-find keys for antique vehicles. Museum-quality work for collector cars.
Call: 903-943-7639
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 29, 2026

VIN Decoding Workshop

by Fob Fixers
In-depth class covering push-to-start systems and proximity key programming techniques
Seminar
May 24, 2026

Car Security Certification Course

by Auto Key Masters
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Seminar
May 18, 2026

Smart Key Programming Class

by Auto Key Masters
In-depth class covering push-to-start systems and proximity key programming techniques
Workshop
May 18, 2026

Anti-Theft System Demonstration

by Car Key Solutions
Become certified in vehicle security systems with our intensive 2-day course

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