[Free Tool] All 1991 Honda NSX keys lost - how to reset immobilizer?

1076 views - Last reply: March 23, 2025
This topic is closed for new replies.
Diana
Member since November 2021 • 148 posts

Need the factory key code to program a key for my 1991 Honda NSX

Posted on March 23, 2025
Adminbot
Staff Member • 1115 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 1991 Honda NSX. Check it out here: VIN Key Code Generator.

Posted on March 24, 2025

Replies (3)

Silverbullet
Member • 17 posts

My 1991 Honda NSX is basically useless until I get this code. Fingers crossed.

March 24, 2025 Reply
Ziggystar
Member • 116 posts

Finally, something that might help with my 1991 Honda NSX's key code issue!

March 25, 2025 Reply
Vikingking
Member • 57 posts

I’m not alone! My 1991 Honda NSX is doing the same thing.

March 26, 2025 Reply

Check the news !

Annual Muscle Car Meetup
🏎️ Local Meetup: Annual Muscle Car Meetup
A gathering for true gearheads and petrolheads

🗺️ Where: Community College Campus
⏰ When: May 21 @ 12AM-8PM

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

🔩 Forum Members: Post in the thread to reserve your spot! 👍

🔧 Off-Road Vehicle Build Day

👨‍🔧 Instructors:
• Suspension Guru David Klein
• Safety Inspector Robert Yang

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

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

🚗 May 8, 2026 at 11:00 AM (6-hour)

🔥 Lunch and refreshments included!

Workshop: Off-Road Vehicle Build Day
Forced Induction Tuning Lab

🔋 Forced Induction Tuning Lab

🧰 Instructor: Factory ECU Engineer Dr. Sophia Chen

📱 Workshop Includes:
• Real-world case studies
• 6-hour comprehensive hands-on training
• Turbo sizing | Intercooling | Wastegate control

📉 Bonus: Custom tune file included

🔌 Next Session: May 7, 2026 at 9:00 AM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Insight: Suspension mods should match your intended use (street vs track)

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

Key Fob Issues
Sometimes. Broken buttons can often be fixed by cleaning or replacing the button pad. Cracked cases can be glued. However, water damage or circuit board issues usually require complete fob replacement. Reprogramming is still needed for replacement fobs.
Cost & Options
Quality aftermarket keys work well for most vehicles at lower cost. However, some luxury brands use proprietary technology only available through dealers. For expensive cars, OEM may be worth the extra cost for reliability.
Key Programming
Most transponder keys and smart keys can be reprogrammed if they haven't been damaged. Basic mechanical-only keys (no chip) can't be reprogrammed - they must be physically cut to match your locks.
Key Tip: Newer cars often require dealer programming for first key replacement
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
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).
Key Tip: Consider key insurance for expensive smart keys
Key Fact: Key fob batteries typically last 3-4 years with normal use

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Apr 22, 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: 368-489-0300
Car Key Extraction Service
$45+
Posted: Apr 26, 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: 373-406-1782
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: 445-354-3183
Dealer Alternative Key Service
40% Less
Posted: Apr 27, 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: 622-729-7984
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 2, 2026

Key Fob Repair Training

by Immobilizer Experts
Comprehensive guide to troubleshooting and resetting immobilizer systems in modern vehicles
Workshop
May 16, 2026

Lost Key Solution Roadshow

by Auto Key Masters
Live demonstration of the latest anti-theft technologies and bypass prevention methods
Seminar
May 10, 2026

Mobile Key Programming Clinic

by VIN Decoder Pros
In-depth class covering push-to-start systems and proximity key programming techniques
Workshop
May 23, 2026

Key Fob Repair Training

by Immobilizer Experts
Live demonstration of the latest anti-theft technologies and bypass prevention methods

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