Programming a spare key for the GX (No Techstream Needed)

[bertyk]

Finally figured out how to program a spare key for the GX without Techstream, after the dealer quoted me $550 + tax. Absolutely insane. All-in cost for me was $240. $80 for the key and $150 for a tool I'll absolutely use in the future.

An overall straightforward experience, but had a lot of questions/guesswork along the way. This walkthrough will make things crystal clear for folks wanting to do this themselves.

What you'll need (all purchased with my own money)
1. A key already programmed to the car
2. Launch Creader Elite V3 T (Amazon Link) -- currently listed at $210, picked mine up on sale for $150. Think of it as a handheld Techstream replacement. No second laptop, no shady resellers, no incompatible cables. Loaded with functionality for any DIYer. At $150 it was a no-brainer.
3. OEM GX Key Fob (eBay Link) -- $75. A few notes on buying secondhand.[indent=40px]-FCC ID must be HYQ14FBF

-The key must be listed as "ready to program," "unlocked," or "virginized" -- meaning it has been unlinked from its previous vehicle and is ready to pair to yours.​

-Confirm compatibility with your specific GX model year. Other Lexus models may share the same FCC ID but not be compatible. The first key I bought was from an ES and failed to link.​

-One seller to avoid: 1010keys. Keys are not OEM (not necessarily a dealbreaker), but I a frustrating experience with the seller. Won't get into the details here, but returned for a full refund. Can't recommend them.​

Once you have both keys and the Launch Creader, you're ready to go. The programming process takes about 15 minutes.

Programming Steps:

1. Turn the car to "Ignition On" mode (press the ignition button twice without your foot on the brake). Do not start the engine.
   
   
   
   
2. Plug the Creader into your OBD-II port and power it on. From the home screen, tap "Local Diagnose."
   
   
   
   
3. Tap "AutoDetect." The tool will scan and identify your vehicle automatically.
   
   
   
   
4. Select "Automatic Search (North America)" -- adjust if you're outside North America.
   
   
   
   
5. Confirm your vehicle details on the Vehicle Information screen and tap "OK." You should see GX460, 2020, 1UR-FE.
   
   
   
   
6. Let the Health Report run to completion. This scans all systems and takes a few minutes.
   
   
   
   
7. When the Basic Diagnosis Report screen appears, tap the back arrow (top left) to return to the Diagnostic Trouble Code screen.
   
   
   
   
8. Scroll down and tap "Smart Access (SA)."
   
   
   
   
9. Tap "Special Function."
   
   
   
   
10. Select "Smart Code Registration (Classic)" or "Smart Code Registration" -- I used the Classic option.
    
    
    
    
11. Select "I am just registering keys."
    
    

From here, follow the on-screen prompts. Before starting, make sure all other keys and phones are out of the car to reduce interference. When prompted, tap your already-programmed key to the ignition button -- you'll hear one beep. Then tap the new key to the ignition button -- two beeps. That's it, you're done.

Total out of pocket: $240, including a tool you'll reach for again for future diagnostics and wrenching.

 

[Jstawgn]

That is awesome. Thanks for documenting this.
I have a different scanner but should be able to do the same thing.
I need to learn how to program immobilizer system and program all the keys back in.

This is great for DIY but on the other hand it's scary, because it's is easy and cheap for thief to duplicate our keys and steal it. There are some some proposed security protocols that is coming. Basically you would need to register and submit your documentation before the server would allow the equipment to unlock and perform these functions.

 

[r2m]

Finally figured out how to program a spare key for the GX without Techstream, after the dealer quoted me $550 + tax. Absolutely insane. All-in cost for me was $240. $80 for the key and $150 for a tool I'll absolutely use in the future.

An overall straightforward experience, but had a lot of questions/guesswork along the way. This walkthrough will make things crystal clear for folks wanting to do this themselves.

What you'll need (all purchased with my own money)
1. A key already programmed to the car
2. Launch Creader Elite V3 T (Amazon Link) -- currently listed at $210, picked mine up on sale for $150. Think of it as a handheld Techstream replacement. No second laptop, no shady resellers, no incompatible cables. Loaded with functionality for any DIYer. At $150 it was a no-brainer.
3. OEM GX Key Fob (eBay Link) -- $75. A few notes on buying secondhand.[indent=40px]-FCC ID must be HYQ14FBF

-The key must be listed as "ready to program," "unlocked," or "virginized" -- meaning it has been unlinked from its previous vehicle and is ready to pair to yours.​

-Confirm compatibility with your specific GX model year. Other Lexus models may share the same FCC ID but not be compatible. The first key I bought was from an ES and failed to link.​

-One seller to avoid: 1010keys. Keys are not OEM (not necessarily a dealbreaker), but I a frustrating experience with the seller. Won't get into the details here, but returned for a full refund. Can't recommend them.​

Once you have both keys and the Launch Creader, you're ready to go. The programming process takes about 15 minutes.

Programming Steps:

1. Turn the car to "Ignition On" mode (press the ignition button twice without your foot on the brake). Do not start the engine.
   
   
   
   
2. Plug the Creader into your OBD-II port and power it on. From the home screen, tap "Local Diagnose."
   
   
   
   
3. Tap "AutoDetect." The tool will scan and identify your vehicle automatically.
   
   
   
   
4. Select "Automatic Search (North America)" -- adjust if you're outside North America.
   
   
   
   
5. Confirm your vehicle details on the Vehicle Information screen and tap "OK." You should see GX460, 2020, 1UR-FE.
   
   
   
   
6. Let the Health Report run to completion. This scans all systems and takes a few minutes.
   
   
   
   
7. When the Basic Diagnosis Report screen appears, tap the back arrow (top left) to return to the Diagnostic Trouble Code screen.
   
   
   
   
8. Scroll down and tap "Smart Access (SA)."
   
   
   
   
9. Tap "Special Function."
   
   
   
   
10. Select "Smart Code Registration (Classic)" or "Smart Code Registration" -- I used the Classic option.
    
    
    
    
11. Select "I am just registering keys."
    
    

From here, follow the on-screen prompts. Before starting, make sure all other keys and phones are out of the car to reduce interference. When prompted, tap your already-programmed key to the ignition button -- you'll hear one beep. Then tap the new key to the ignition button -- two beeps. That's it, you're done.

Total out of pocket: $240, including a tool you'll reach for again for future diagnostics and wrenching.

It this Launch Creader Elite V3 T work for ALL Toyota/Lexus products like TechStream or is it specific to Toyotoa or Lexus, or even to a model within the product, e.g.: only Lexus GX from X year to X year.

 

[bertyk]

It this Launch Creader Elite V3 T work for ALL Toyota/Lexus products like TechStream or is it specific to Toyotoa or Lexus, or even to a model within the product, e.g.: only Lexus GX from X year to X year.

Compatibility listed in the amazon description...

Compatible with Toyota Series (1997-2026): For 4Runner, 86, Agya, Allion, Alphard, Alphard HEV, Alphard HV, Altezza, Altezza Gita, Aqua, Aristo, Ativ, Aurion, Auris, Auris HV, Avalon, Avalon HV, Avanza, Avensis, Avensis Verso, Aygo, Belta, Blade, Brevis, C+Pod, C-HR, C-HR EV, C-HR HV, Caldina, Calya, Cami, Camroad, Camry, Camry Gracia, Camry HV, Carina, Celica, Celsior, Century, Century PHEV, Coaster, Comfort, Copen, Corolla, Corolla Allex, Corolla Axio, Corolla Axio HV, Corolla Cross, Corolla Cross HEV, Corolla Cross HV, Corolla Fielder, Corolla Fielder HV, Corolla HEV, Corolla HV, Corolla PHV, Corolla Rumion, Corolla Runx, Corolla Spacio, Corolla Sport, Corolla Sport HV, Corolla Touring, Corolla Touring HV, Corolla Verso, Corolla iM, Crown, Crown Comfort, Crown Estate, Crown HEV, Crown HV, Crown Kluger, Crown Kluger HV, Crown Majesta，Crown Mild Hybrid, Crown Patrol Car, Crown Patrol Car HV, Crown Sedan, Crown Vellfire HEV, Curren, Dyna, Dyna 100, Dyna 150, Dyna 200, E'z, Echo, Esquire, Esquire HV, Estima, Estima HV, FJ Cruiser, Fortuner, Frontlander, Fun Cargo, GR Corolla, Gran ACE, Harrier, Harrier HV, Harrier PHEV, Hiace, Highlander, Highlander HV, Hilux, Innova HEV, Izoa EV, Izoa HV, Kijang Innova HEV, Kluger HV, Land Cruiser Prado, Levin, Levin HEV, Levin HV, Levin PHV, Noah, Noah HV, Prius, Prius Alpha, Prius PHEV, Prius PHV, Prius Prime, Prius V, Rav4, Rav4 EV, Rav4 HV, Rav4 PHV, Rav4 Prime, Sequoia, Sequoia HEV, Sienna, Sienna HV, Sienta, Sienta HEV, Sienta HV, Tundra HEV, Vellfire, Vellfire HEV, Vellfire HV, Venza HV, Wild Lander PHV......

Compatible with Lexus Series (1998-2026): For CT200h, ES200, ES240, ES250, ES260, ES300, ES300h, ES330, ES350, GS F, GS200t, GS250, GS300, GS300h, GS350, GS430, GS450h, GS460, GX400, GX460, GX470, HS250h, IS F, IS200t, IS250, IS250C, IS300, IS300h, IS350, IS350C, IS500, LBX, LC500, LC500c, LC500h, LFA, LM HEV, LM500h, LS350, LS430, LS460, LS500, LS500h, LS600h, LX450d, LX470, LX500d, LX570, LX600, NX200, NX200t, NX250, NX260, NX300, NX300h, NX350, NX350h, NX400h+, NX450h+, RC F, RC200t, RC300, RC300h, RC350, RX200t, RX270, RX300, RX350, RX350h, RX450h, RX450h+, RX500h, RZ450e, SC430, UX200, UX250h, UX260h, UX300e......