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Old 05-13-2015, 06:17 PM   #1
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Default 2008 gmc sierra extended cab w/t

hello I have a 2008 gmc sierra ext cab w/t that didn't come from factory with keyless entry. I would like to add factory keyless entry to the truck. can it be done? or is it better to go aftermarket? my truck does have the tpms on it.
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Old 05-14-2015, 06:01 AM   #2
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You would have to add all the wiring to it, install the locks, take it to the dealer and have them reprogram the BCM(Body Control Module) for keyless entry. That'* the most painful way.

Other way is to get one of the higher end systems that Viper has. This includes remote start, keyless and built in alarm. I highly suggest you stay away from the cheap brands.

IMO, its not worth the time, money or headache of either option. Trade the truck in for the options you want.
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Old 05-14-2015, 04:00 PM   #3
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its got power windows and power locks and the wiring is there for it. I guess my real question is is the keyless entry software on the keyless entry module or is it on the main computer?
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Old 05-14-2015, 07:30 PM   #4
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It has its own module. But how did you know that it came from the factory with no keyless entry? That stuff is like pretty standard these days.
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Old 05-14-2015, 07:35 PM   #5
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That'* what I was thinking.. If you bought the truck used, it'* possible it does have RKE and you just didn't get the FOBs for it. Should be able to check the RPO Label for the RKE code(*). You might get lucky and have it already.. then you just need to get some FOBs and program them.
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Old 05-15-2015, 08:22 PM   #6
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i checked the codes and i have the build sheet and even had the dealership try to program a key fob to it and it wouldn't let him. I guess ill order the rke and see if it works. the dealership didn't know if it would work or not.
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Old 05-15-2015, 08:24 PM   #7
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i should add that the reason i bought the truck is because it was my grandfathers truck and only has 52000 miles on it and i got a nice deal on it. plus its paid for.
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Old 05-15-2015, 09:13 PM   #8
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Ok, I'm confused. The dealer tried to program a RKE and couldn't? And they didn't know if it would work or not? I'm sorry, but that was the stupidest thing I've heard coming from a dealer. They should or should not know whether something will work or not just based on your VIN.
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Old 05-16-2015, 03:20 PM   #9
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Could you post the Vin#?
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Old 05-16-2015, 04:44 PM   #10
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Quote:
Originally Posted by chevy82 View Post
Could you post the Vin#?
I was thinking about asking him for a picture of his RPO sticker.
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