It's not stock, those are not the stock t-series lights. You have the GTG T-Series mod. Again, launch in safe mode with no mods and if the issue still persists, report back to us. --- Post updated --- It would appear you've mistaken "unmarked" for "undercover" Unmarked police cars like this do exist, with the bullbar and police steelies irl just as they are in the game. Undercover cop cars, on the other hand, do not have bullbars, and are usually a normal color like tan or white, and are some sort of chevy malibu or whatnot. However, modern unmarked police cars like ford explorers do not have bullbars, so you are partially correct.