[GtiGyver]

So I added a CIC system to my car which was a slickdash previously.
The CIC controller is still the CCC model with only the MENU button.

Since I miss having some of the shortcuts, I decided to use some of the buttons on the heated seats panel that I replaced with functions that don't work on my car.
So far I mapped the "HDA" button to be my CIC "options" button, and it works... sort-of.
I sometimes get erratic behavior.

My question is this:

Given that the command to send a CIC options button press is defined as this (implying a short button press):
byte CAN_msg_CIC_option_short[6] = {0xE1, 0xFD, 0xCC, 0x01, 0xC0, 0x04};

Do I still need to send the "options" button release command?
byte CAN_msg_CIC_option_release[6] = {0xE1, 0xFD, 0xCC, 0x00, 0xC0, 0x04};

If so, what is the timing between these commands? 100ms delay?

Thanks