zbishop80 Posted May 12, 2009 Report Share Posted May 12, 2009 (edited) I have an '05 SSS and I've recently added an OEM hitch. I initially thought my truck came with the tow package. According to my VIN it did not. Here's where my confusion lies. I do have the tow button on my gear selector and it does function but I do not have the wiring for the hitch. I am looking to add the oem wiring harness for the hitch but I am not sure where it connects. I know there is a module near the spare tire. Does anyone know if/where the OEM wiring loom connects to this module for the hitch? Edited May 12, 2009 by Bishop (see edit history) Quote Link to comment Share on other sites More sharing options...
gixxerrider Posted May 12, 2009 Report Share Posted May 12, 2009 the wire harness is a round plug thats the one it should all rady be hooked up all you need is the rear plug to mount on the hitch Quote Link to comment Share on other sites More sharing options...
zbishop80 Posted May 12, 2009 Author Report Share Posted May 12, 2009 the wire harness is a round plug thats the one it should all rady be hooked up all you need is the rear plug to mount on the hitch That's the thing I dont see any of the previous wiring for the hitch. R u speaking of a round plug on the module near the spare tire? Quote Link to comment Share on other sites More sharing options...
kcsilveradoss Posted May 12, 2009 Report Share Posted May 12, 2009 I added the hitch on my SS as well, i found the harness taped up in the wire loom from the factory. look carefully, im sure yours has it. Quote Link to comment Share on other sites More sharing options...
gixxerrider Posted May 12, 2009 Report Share Posted May 12, 2009 thats the one Quote Link to comment Share on other sites More sharing options...
eddieo818 Posted May 12, 2009 Report Share Posted May 12, 2009 I help my bro add the factory tow hitch to his truck was not wired for apparently that harness runs outta the main loom so he went to uhaul to have them add the harness. Quote Link to comment Share on other sites More sharing options...
zbishop80 Posted May 12, 2009 Author Report Share Posted May 12, 2009 I'll look for it tonight. Even though my VIN says I dont have the tow package the loom should still be there? That seems strange to me. Quote Link to comment Share on other sites More sharing options...
gixxerrider Posted May 12, 2009 Report Share Posted May 12, 2009 It should be there held in with gray plastic clips under the spare tire or just behind it. I just sold my hitch to a gut with a 04 and it was in his truck. Now I have to get a hidden hitch with a BSER roll pan Quote Link to comment Share on other sites More sharing options...
Bad Bowtie Posted May 14, 2009 Report Share Posted May 14, 2009 (edited) I think one or two of us might be thinking your talking about the trailer brake controller harness that plugs in under the dash inside. I think your talking about the actual trailer light harness which plugs into the back of your truck (next to the hitch). If you purchased a GM hitch kit, I'm really surprised it wasn't in the box!! Edited May 14, 2009 by Bad Bowtie (see edit history) Quote Link to comment Share on other sites More sharing options...
zbishop80 Posted May 14, 2009 Author Report Share Posted May 14, 2009 I think one or two of us might be thinking your talking about the trailer brake controller harness that plugs in under the dash inside. I think your talking about the actual trailer light harness which plugs into the back of your truck (next to the hitch). If you purchased a GM hitch kit, I'm really surprised it wasn't in the box!! I purchased the hitch from another member of this site not from GM. Hence no harness. I know that I'll need to purchase the harness for the trailer lights. It's my understanding though that this trailer light harness will plug into a module on the main wiring harness for the truck. Is that correct or am I way off base here? Quote Link to comment Share on other sites More sharing options...
gixxerrider Posted May 14, 2009 Report Share Posted May 14, 2009 there is a main harness plug for the tailer hitch near the spare tire and it plugs in there Quote Link to comment Share on other sites More sharing options...
zbishop80 Posted May 14, 2009 Author Report Share Posted May 14, 2009 there is a main harness plug for the tailer hitch near the spare tire and it plugs in there I'll see what I can find. Thanks again bro. Quote Link to comment Share on other sites More sharing options...
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