Punta po sa "settings" ng phone, select nyo po "google play services" then clear data and cache, after nun punta naman po sa android auto, (jan parin sa settings->apps) then clear data and cache din, after that, off ang phone, then proceed sa recovery mode ng phone (for samsung- while your phone is off, press and hold volume up+bixby button+power button until you see the recovery mode, after that select wipe cache partition and select reboot. Pag restart nyan autmatic magkakaroon napo kayo ng android auto coolwalk features
Make sure wipe cache partition po ang iselect ha wag yung wipe data, wala pong mawawala o mabuburang files jan sa phone nyo, bali ang purpose po ng wipe cache partition ay aalisin ang tempo file na nakasave sa phone para marefresh yung android auto app nyo