[Success] 1965 Chrysler 300 only starts with master key - no code for new one

3789 views - Last reply: August 13, 2024
This topic is closed for new replies.

Need the key code to program a replacement key for my 1965 Chrysler 300

Hello! We've developed a VIN-based tool to help you get your key code for the 1965 Chrysler 300. Check it out here: VIN Key Code Generator.

Replies (6)

Was about to give up on my 1965 Chrysler 300, but this gives me hope.

Really hoping this unlocks my 1965 Chrysler 300's mystery code.

Thanks! This could save me a trip to the dealership for my 1965 Chrysler 300.

Exactly what I was looking for to fix my 1965 Chrysler 300.

This is gold. I’ve been locked out of my 1965 Chrysler 300 for days.

Appreciate any advice—my 1965 Chrysler 300 won’t recognize the key.

Check the news !

Hot Rod & Custom Car Expo
🚗 Local Meetup: Hot Rod & Custom Car Expo
A gathering for true gearheads and petrolheads

📍 Where: Shopping Mall Parking Lot
📅 When: July 3 @ 10AM-7PM

Event features:
Car Audio Competition | Model Car Show

🔧 Forum Members: Who's going? Sound off in the comments! 👋

🔩 Performance Modding 101

👩‍🏭 Instructors:
• Suspension Guru David Klein
• Race Engineer Emily Torres

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

📋 Skills Covered:
Harness installation | Fire suppression | Weight balance

🏎️ July 7, 2026 at 10:00 AM (4-hour)

💡 Free parts giveaway for all attendees!

Workshop: Performance Modding 101
Dyno Tuning Intensive Course

🚀 Dyno Tuning Intensive Course

⚙️ Instructor: Data Acquisition Expert Priya Patel

📊 Workshop Includes:
• Budget performance hacks
• 6-hour comprehensive hands-on training
• Suspension geometry | Weight transfer | Damping rates

🔩 Bonus: Exclusive tuner network discounts

🏎️ Next Session: June 29, 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

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: Keep spare keys in a faraday bag to prevent signal amplification theft
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: Some locksmiths offer mobile key programming services
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 Tip: Replace key fob batteries every 1-2 years as preventative maintenance
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.
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: Some locksmiths offer mobile key programming services
Key Fact: Some insurance policies offer key replacement coverage

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Jun 14, 2026
Professional car key programming for most makes/models. We come to you! Transponder keys, fobs, and smart keys. Same-day service available. All work guaranteed.
Call: 847-806-8406
Key Fob Repair & Battery Replacement
$25+
Posted: Jun 16, 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: 342-534-5221
Fleet Key Programming
Call
Posted: Jun 13, 2026
Commercial key services for businesses with multiple vehicles. Bulk discounts available. We can handle all your company cars, trucks, and fleet vehicles.
Call: 883-324-3699
Key Fob Case Replacement
$35
Posted: Jun 7, 2026
Cracked or damaged fob housing? We transfer your electronics to a new case. Multiple color options available. Most models in stock. 15-minute service.
Call: 605-967-9589
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
Jul 6, 2026

Key Fob Repair Training

by Immobilizer Experts
Become certified in vehicle security systems with our intensive 2-day course
Seminar
Jun 21, 2026

Transponder Key Tech Day

by Fob Fixers
Hands-on experience with the newest transponder key cloning and programming equipment
Workshop
Jul 1, 2026

Transponder Key Tech Day

by Car Key Solutions
Step-by-step instruction for repairing common key fob issues including button and circuit problems
Seminar
Jun 26, 2026

Dealer-Level Programming Workshop

by The Key Lab
Hands-on experience with the newest transponder key cloning and programming equipment

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