For your information

Lexus GX / Lexus GX Owners Manual / For your information

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Initialization
Items to initialize The following items must be initialized for normal system operation in cases such as after the battery is reconnected, or maintenance is per- formed on the vehicle. ...

Erasing the entire HomeLink® memory (all three programs)
Press and hold the 2 outside but- tons for 10 seconds until the indi- cator light flashes. If you sell your vehicle, be sure to erase the programs stored in the HomeLink® memory.  - Befo ...

Setting speed dials
Select “Set Speed Dial (Speed Dial)” using a voice command or the “TUNE/SEL” knob. Pattern A Select the data to be registered as a speed dial by either of the following methods, and se ...