I suspect it to be a shader issue or something in the model. When replacing the texture with a light gray one the off-color hue was still visible. I ended up using the color 0c0e11 for the texture to get it to look better.
As for all the green hues, I'm still curious what's going on there. I added textures from the game's vehshare file to the mod's files without changing compression or mipmaps, and they look just fine now.
Hey, I've tried out the vehicles the past days and I noticed multiple vehicles that have parts that I believe should be black, but instead have a greenish hue (or in the case of the PB Tahoe brown). Pushbumpers, backside of mirrors, front skirts...
I tested the pack without other resources loaded and also no active visualsettings to rule that out. I'm wondering if it could be a texture or shader issue in the model files, at least I with a quick look in Open IV couldn't find what texture(s) those parts would be using.