Don’t know if this is where this question goes, but I read somewhere if you install new ELS police units into the latest patch day that it will override the existing generic police vehicles in GTA5. I did that and the new ones do spawn but the generic ones still spawn when you call for back up or join a chase and their light bars don’t light up. How can I change that. The new police units are add on I believe not replacements. Thank you for any assistance you can offer. 

If they are addons, you likely installed them as a separate DLC and not in the latest patch day. Addon vehicles will not replace the default units. There are a few things you can do to change that, but the easiest thing to do would be to take the vehicles from the addon and rename each of them to replace a vehicle slot so they respond instead of the default units.

 

Your other option would to be go into every data folder and change police models there to the names of your addon vehicles.

What I did was replaced the default police vehicles with the ones I down loaded into patch day 3. The only ones that I couldn’t replace is police 5 and polgauntlet. Of the vehicles I down loaded none of them replace these two. So those two default vehicles will still respond and be seen driving around. I know I watched a video some time ago where they said if you want to  replace a vehicle but the .yft and .ytd doesn’t correspond to it, you can simply write it in and then drag and drop and should do it but I’ve done it lately and it doesn’t work anymore. Like for instance POLICE5.ytd and the vehicle you want to replace it with has only POLICE, POLICE2 or POLICE3 or 4. You edit the YTD on the let’s say POLICE2 (new vehicle) to POLICE5.ytd and then drag and drop and should replace it with new vehicle. I recently did it with one to replace POLICE3.ytd with new vehicle police.ytd. I edited the police.ytd changed it to pollce3.ytd then drag and dropped but it didn’t work. It used to work but not anymore or im doing something wrong. But im good now thank you for the help and advice.