[Confirmed Fix] 1972 Fiat 124 keeps flashing 'key not recognized'

2277 views - Last reply: August 11, 2024
This topic is closed for new replies.

Trying to program a new key - where's the key code on my 1972 Fiat 124?

Hello! We've developed a VIN-based tool to help you get your key code for the 1972 Fiat 124. Check it out here: VIN Key Code Generator.

Replies (3)

Worked for someone with a 1972 Fiat 124? Need to hear it!

Has anyone gotten this method to work on a 1972 Fiat 124 before?

Really hoping this unlocks my 1972 Fiat 124's mystery code.

Check the news !

Drag Racing Championship
🚗 Local Meetup: Drag Racing Championship
From daily drivers to show queens

📍 Where: Industrial Park
📅 When: July 30 @ 12AM-5PM

Event features:
Photoshoot Area | Ride-Alongs

🔧 Forum Members: Don't forget to tag your photos #OurForumName 👋

🔧 Paint & Bodywork Techniques

👨‍🔧 Instructors:
• Master Technician Carlos Rodriguez (20+ years experience)
• 4x4 Builder Mark Jensen

🛠️ Hands-On Activities:
• Roll cage installation demo
• 4-hour intensive training
• Personal coaching

📝 Skills Covered:
Alignment angles | Spring rates | Damping adjustment

🚗 July 28, 2026 at 9:00 AM (4-hour)

🔥 Lunch and refreshments included!

Workshop: Paint & Bodywork Techniques
Suspension Tuning for Speed

🔋 Suspension Tuning for Speed

🧰 Instructor: Pro Drag Racer Jake 'The Snake' Reynolds

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

📉 Bonus: Personalized setup recommendation

🔌 Next Session: July 20, 2026 at 10:00 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

Key Fob Issues
Many cars have a resync procedure: 1) Press lock/unlock buttons while near the car 2) Insert key and turn ignition on/off in a specific pattern 3) Use a sequence of button presses. Check your manual for exact steps - procedures vary widely by manufacturer.
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 Programming
Common reasons: wrong key type for your vehicle, anti-theft system needs reset, low car battery voltage during programming, or the key isn't properly synced. Some cars also have programming limits (only 2-4 keys can be registered).
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.
Key Fob Issues
1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
Key Fact: Smart keys use radio frequencies between 125 kHz and 2.4 GHz

🔑 KEY SERVICES CLASSIFIEDS

Transponder Key Duplication
$65+
Posted: Jul 6, 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: 274-792-2467
Smart Key Programming Special
$150
Posted: Jul 6, 2026
Push-to-start key replacement for Toyota, Honda, Nissan, Ford. Includes programming and testing. Limited time offer - normally $200+. Call for availability.
Call: 623-828-3129
Anti-Theft System Repair
$85+
Posted: Jul 11, 2026
Fixing security light issues, PATS systems, and ignition immobilizers. Proper diagnosis before repair. Most vehicles serviced same day. Warranty on all work.
Call: 660-625-0352
Vintage Car Key Restoration
$55+
Posted: Jul 12, 2026
Specializing in classic car keys (pre-1990). Can reproduce hard-to-find keys for antique vehicles. Museum-quality work for collector cars.
Call: 977-512-1569
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
Jul 29, 2026

VIN Decoding Workshop

by Auto Key Masters
Become certified in vehicle security systems with our intensive 2-day course
Workshop
Aug 8, 2026

Immobilizer System Seminar

by Immobilizer Experts
Learn how to extract key codes from VIN numbers and decode vehicle security information
Workshop
Aug 7, 2026

Anti-Theft System Demonstration

by Car Key Solutions
In-depth class covering push-to-start systems and proximity key programming techniques
Workshop
Aug 10, 2026

Transponder Key Tech Day

by Auto Key Masters
Learn dealer-level programming techniques normally only available at franchise shops

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