When I accelerate spiritedly The slip and traction control off lights come on but reset when the car is restarted. Some times the parking brake light comes on as well during these pulls. There is no noticeable performance difference but it is definitely concerning to see those lights come on.
this is why I tell people not to buy those Infinity they're great when they know but when they get old and you're just 13 years old all the electronics start to go haywire.you'll need a guy like me to actually physically scan it with his dealer level scan tool and analyzing the data coming from the traction control system a zillion things can go wrong on those with that mileage
I would not delve into an electrical problem on that car. You can easily spend a small fortune tracking down and repairing the issue. Nothing about the traction control systems on those is cheap.