[Verified] Need the key code to program a new key for my McLaren MSO HS - help?

4807 views - Last reply: March 15, 2025
This topic is closed for new replies.
Hotrod
Member since June 2023 • 110 posts

How to get the key code to program keys for my McLaren MSO HS?

Posted on March 15, 2025
Adminbot
Staff Member • 1679 posts

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

Posted on March 16, 2025

Replies (3)

Steelwolf
Member • 12 posts

Key code problems with my McLaren MSO HS as well. Subscribed!

March 16, 2025 Reply
Bigfoot
Member • 72 posts

Fingers crossed this works for my McLaren MSO HS too.

March 17, 2025 Reply
Bluesteel
Member • 32 posts

Really hoping this unlocks my McLaren MSO HS's mystery code.

March 18, 2025 Reply

Check the news !

JDM Enthusiasts Meet
🏎️ Local Meetup: JDM Enthusiasts Meet
From daily drivers to show queens

🗺️ Where: Shopping Mall Parking Lot
⏰ When: May 14 @ 11AM-5PM

Event features:
Club Displays | Trunk Swap Meet

🔩 Forum Members: Post your ride in our event discussion thread! 👍

🔩 Performance Modding 101

👩‍🏭 Instructors:
• Paint Specialist Sarah Chen
• Suspension Guru David Klein

⚙️ Hands-On Activities:
• Panel beating and dent repair
• 6-hour intensive training
• Personal coaching

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

🏎️ May 19, 2026 at 12:00 PM (6-hour)

💡 Limited to 15 participants - reserve your spot now!

Workshop: Performance Modding 101
ECU Remapping Masterclass

🚀 ECU Remapping Masterclass

⚙️ Instructor: Data Acquisition Expert Priya Patel

📊 Workshop Includes:
• Component selection guides
• 4-hour intensive hands-on training
• NVH reduction | Drivability tuning | Daily driver balance

🔩 Bonus: Certificate of completion

🏎️ Next Session: May 9, 2026 at 2:00 PM

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

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: Consider key insurance for expensive smart keys
Lost Keys
Yes, a skilled auto locksmith can extract the broken key and make a replacement. They can often do this without damaging the ignition cylinder. The new key will need programming if it has a transponder chip.
Key Tip: Store your key code separately from your keys
Lost Keys
Yes, a skilled auto locksmith can extract the broken key and make a replacement. They can often do this without damaging the ignition cylinder. The new key will need programming if it has a transponder chip.
Key Tip: Consider key insurance for expensive smart keys
Lost Keys
Costs vary widely: Basic keys: $50-$150, Transponder keys: $150-$300, Smart keys/fobs: $200-$800, Dealership replacements typically cost 20-50% more than locksmiths. Emergency/lockout service adds $50-$150.
Key Tip: Always have at least two working keys to avoid expensive replacements
Lost Keys
Costs vary widely: Basic keys: $50-$150, Transponder keys: $150-$300, Smart keys/fobs: $200-$800, Dealership replacements typically cost 20-50% more than locksmiths. Emergency/lockout service adds $50-$150.
Key Fact: Some insurance policies offer key replacement coverage

🔑 KEY SERVICES CLASSIFIEDS

Immobilizer System Reset
$95+
Posted: Apr 29, 2026
Fix "key not detected" errors and immobilizer issues. Dealer-level diagnostic equipment. Can often repair without replacing entire system. Free estimates.
Call: 291-689-1913
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: 780-283-5485
Anti-Theft System Repair
$85+
Posted: Apr 22, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 860-220-3779
Fleet Key Programming
Call
Posted: Apr 23, 2026
Commercial key services for businesses with multiple vehicles. Bulk discounts available. We can handle all your company cars, trucks, and fleet vehicles.
Call: 851-770-0737
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Workshop
May 22, 2026

Car Security Certification Course

by Mobile Key Tech
Learn dealer-level programming techniques normally only available at franchise shops
Seminar
May 12, 2026

Key Fob Repair Training

by Auto Key Masters
Learn how to extract key codes from VIN numbers and decode vehicle security information
Workshop
May 8, 2026

Car Security Certification Course

by Auto Key Masters
In-depth class covering push-to-start systems and proximity key programming techniques
Workshop
May 14, 2026

Transponder Key Tech Day

by Auto Key Masters
Solutions for when all keys are lost - from code pulling to immobilizer resets

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