GMC Terrain, Equinox, and SRX Forum banner


  1. New Member Section
    Hey all, I have a 2016 GMC Terrain which is leaking coolant. I bought an a radiator leak stop which says pour directly in radiator reservoir (which I don’t believe this car has) so then says to pour it directly in overfill tank? Im not sure where the overfill tank is!! I saw a YT video where...