[Working] Key code help for Ariel 4G Square Four Mark with chipped keys

1046 views - Last reply: April 06, 2025
This topic is closed for new replies.

Where do I get the key code for my Ariel 4G Square Four Mark to make a spare key?

Hello! We've developed a VIN-based tool to help you get your key code for the Ariel 4G Square Four Mark. Check it out here: VIN Key Code Generator.

Replies (6)

Great info! Needed this for my old Ariel 4G Square Four Mark.

Appreciate the tips—trying to unlock my Ariel 4G Square Four Mark key code too.

Anyone try this on a Ariel 4G Square Four Mark with push-button start?

Really hoping this unlocks my Ariel 4G Square Four Mark's mystery code.

Trying to figure this out for my Ariel 4G Square Four Mark too!

Hope this method is better than the last one I tried on my Ariel 4G Square Four Mark.

Check the news !

Lowrider Spectacular
🚙 Local Meetup: Lowrider Spectacular
The best local cars all in one place

🏁 Where: Industrial Park
📆 When: May 13 @ 12AM-8PM

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

⚙️ Forum Members: Forum staff will be there - come say hi! ✨

🔩 Off-Road Vehicle Build Day

👩‍🏭 Instructors:
• Detailer Extraordinaire Lisa Wong
• Restoration Pro Alex Petrov

⚙️ Hands-On Activities:
• Differential rebuild workshop
• 6-hour intensive training
• Personal coaching

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

🏎️ May 13, 2026 at 11:00 AM (6-hour)

💡 Certificate of completion provided!

Workshop: Off-Road Vehicle Build Day
Performance Engine Building 101

🔋 Performance Engine Building 101

🧰 Instructor: Data Acquisition Expert Priya Patel

📱 Workshop Includes:
• Live dyno tuning demonstrations
• 4-hour intensive hands-on training
• Fuel system upgrades | Injector sizing | Pump flow

📉 Bonus: 20% discount on performance parts

🔌 Next Session: May 13, 2026 at 2:00 PM

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

Security Systems
An anti-theft system that prevents the engine from starting unless it detects the correct transponder chip in the key. The chip sends a unique code to the car's computer when you turn the ignition. No match = no start, even with a physically matching key.
Key Tip: Keep spare keys in a faraday bag to prevent signal amplification theft
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 Tip: Avoid exposing key fobs to water or extreme temperatures
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 Tip: Replace key fob batteries every 1-2 years as preventative maintenance
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: 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.
Key Tip: Avoid exposing key fobs to water or extreme temperatures
Key Fact: Some luxury car keys can cost $800+ to replace at dealerships

🔑 KEY SERVICES CLASSIFIEDS

Key Fob Repair & Battery Replacement
$25+
Posted: Apr 29, 2026
Fob not working? We fix broken buttons, replace batteries, and resync to your vehicle. Most repairs done while you wait. Water damage specialists available.
Call: 533-297-7395
Anti-Theft System Repair
$85+
Posted: Apr 28, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 683-924-6007
Vintage Car Key Restoration
$55+
Posted: Apr 27, 2026
Specializing in classic car keys (pre-1990). Can reproduce hard-to-find keys for antique vehicles. Museum-quality work for collector cars.
Call: 236-485-9339
Dealer Alternative Key Service
40% Less
Posted: Apr 20, 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: 369-314-4248
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 21, 2026

VIN Decoding Workshop

by VIN Decoder Pros
Become certified in vehicle security systems with our intensive 2-day course
Workshop
May 5, 2026

Anti-Theft System Demonstration

by VIN Decoder Pros
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Workshop
May 11, 2026

Mobile Key Programming Clinic

by Locksmith Pro
Learn dealer-level programming techniques normally only available at franchise shops
Seminar
May 2, 2026

Key Fob Repair Training

by Auto Key Masters
In-depth class covering push-to-start systems and proximity key programming techniques

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