Indicator lights (turn signals)-I am sure a lot of players at least once in their life tried to drive around the rules, and may be so come now. And certainly they were jealous of NPCs, including turn signals .... This script has a longstanding problem.
So, you can use:-turn signals (keys ← and →)-hazard lights (hotkey U)-all signals at once, without blinking (I)
Need GTA 4 version 22.214.171.124