I'd like to know how to implement soft reset on S32K3xx without using watchdog.
The DS only list some reset sources, can you tell us how to use them?
As you mentioned, the S32K3 RM rev.5 lists all the available reset sources
Table 158. Destructive reset sources
Table 116. Functional reset sources
Refer to this thread, it shows how to trigger SW_FUNC reset using the RTD Power_Ip API.