Hi Jorge Antonio ,
Thank you for the quick reply. The FLEXCAN transceiver being used on S32K142 is UJA1169TK/F. The datasheet of this transceiver tells that its supply voltage is 5V. So even if, I am changing the supply voltage of the MCU to 3.3 V, will this be able to change the output level for the FLEXCAN to 3.3V ?