[Fixed] Key code help for Toyota MRJ with switchblade key

3358 views - Last reply: September 14, 2024
This topic is closed for new replies.

Where's the key code stored to program keys for a Toyota MRJ?

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

Replies (3)

Just checking in to say this helped with my Toyota MRJ. Thanks!

Using this on my Toyota MRJ now. Hope it works.

Trying this on my Toyota MRJ later. Will report back.

Check the news !

JDM Enthusiasts Meet
🚙 Local Meetup: JDM Enthusiasts Meet
The local meetup for serious enthusiasts

🏁 Where: Industrial Park
📆 When: May 24 @ 11AM-4PM

Event features:
Car Audio Competition | Model Car Show

⚙️ Forum Members: Don't forget to tag your photos #OurForumName ✨

🔩 Brake System Masterclass

👩‍🏭 Instructors:
• Race Engineer Emily Torres
• Paint Specialist Sarah Chen

⚙️ Hands-On Activities:
• Live engine tuning session
• 4-hour intensive training
• Personal coaching

📋 Skills Covered:
Paint decontamination | Polishing | Protective coatings

🏎️ May 9, 2026 at 9:00 AM (4-hour)

💡 Free parts giveaway for all attendees!

Workshop: Brake System Masterclass
Suspension Tuning for Speed

🏁 Suspension Tuning for Speed

🔧 Instructor: Engine Builder Mike O'Connor (1000+ HP builds)

💻 Workshop Includes:
• Emission-legal power gains
• 6-hour comprehensive hands-on training
• Fuel system upgrades | Injector sizing | Pump flow

📈 Bonus: Certificate of completion

⏱️ Next Session: May 7, 2026 at 12:00 PM

Customize Your Tuning Focus:

🚀 Performance Mod Cost Estimator

Did you know? Proper tuning can add 20-30% more power from the same hardware

Vehicle Information

Modification Information

Additional Options

🔑 Car Key & Fob FAQ

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

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: Keep spare keys in a faraday bag to prevent signal amplification theft
Cost & Options
You can buy fobs online, but: 1) Must match your exact model/year 2) Many still require professional programming 3) Cheap knockoffs may not work reliably. Some eBay/Amazon sellers offer programming instructions for DIY-friendly models.
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.
Lost Keys
1) Contact a locksmith who specializes in automotive keys or your dealership 2) Provide proof of ownership (registration, title, ID) 3) They'll either cut new keys by code or reprogram your car's system 4) This is expensive ($200-$800) as the immobilizer may need resetting.
Key Tip: Avoid exposing key fobs to water or extreme temperatures
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: Key fob batteries typically last 3-4 years with normal use

🔑 KEY SERVICES CLASSIFIEDS

Mobile Key Programming Service
$75+
Posted: Apr 26, 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: 200-534-6237
Lost Car Key Replacement
$120+
Posted: May 1, 2026
Lost all your keys? We can cut and program new ones even without originals. Dealership alternative at 40% less. Proof of ownership required. Serving all major brands.
Call: 565-903-0015
Transponder Key Duplication
$65+
Posted: Apr 27, 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: 214-737-7211
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: 560-704-1759
Ads refreshed daily • Licensed professionals • Mobile services available

🔑 Upcoming Key & Immobilizer Services

Seminar
May 31, 2026

Smart Key Programming Class

by Immobilizer Experts
Solutions for when all keys are lost - from code pulling to immobilizer resets
Seminar
May 28, 2026

Lost Key Solution Roadshow

by Auto Key Masters
Solutions for when all keys are lost - from code pulling to immobilizer resets
Workshop
May 11, 2026

Lost Key Solution Roadshow

by VIN Decoder Pros
Step-by-step instruction for repairing common key fob issues including button and circuit problems
Seminar
May 6, 2026

VIN Decoding Workshop

by Locksmith Pro
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