It is not a diesel and I don’t notice anything when I switch it on. I asked the dealer when I bought it and they said they didn’t know
It is not a diesel and I don’t notice anything when I switch it on. I asked the dealer when I bought it and they said they didn’t knowThis is just about the same as your truck but it doesn't have the little switch in it. It might be an after market thing previous owner installed. Have someone look around at the outside of the truck when you turn it on and off and see if anything lightens up or happens. Heated mirrors maybe. It's not a diesel is it? I was thinking maybe glow plug switch. See if the dealer has any info about it