TRC off... maybe u pressed a button or something something that switched your traction control off. If so, just press it again when ur done drifting like one guy said...
If VSC always on... dunno, maybe u screwed the Vehicle Stability Control and it needs checking...
Hai all sifu here....my prob is when hard throttle below 2k rpm and when reach 3k untill 4k my car start jerking and after 4k and above is ok...already setting SAFC and change the plug but the prob still...