Table 26 in the datasheet recommends the maximum specification for ESD when the module is integrated into an
15KV over the air and 2KV for contact. Hope this helps.
We already know the ESD specification of the module you gave.
Now we are doing an ESD test at the system level, and if we apply ESD 2kV to the system,
the BT module resets and the ESD test failed.
In other words, if you have a hardware design guide to consider when using a BT module to pass an ESD test,
then we want to get help from Cypress.
You may need to deploy transient voltage suppression diodes (usually near to power supply inlets) in your end product so as to provide adequate protection against ESD.
Please open a technical support case or contact Cypress Korea for assistance.