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1999 GMC Sierra 5.3 Keyless question

MrCPUQC
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MrCPUQC New Member

MrCPUQC

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Hi there! I hope you are all doing fantastic on this fine day.

 

I recently bought a 1999 GMC Sierra 2x4 with power locks and windows, unfortunately, it dosen't seem to have the remote keyless entry. That is an option that I really want.

I have saw with a bit of research that replacing the BCM could enable it. Could it be done easily plug-n-play?

 

I do not have the AU0 option only AU3. Would the dealer be able to reprogram it to enable it?

 

Thanks!

shakenfake Senior Enthusiast

shakenfake

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You can replace the BCM but yes the dealer is going to have to reprogram it to enable everything. I suggest getting a 2002 BCM so that you can get the auto unlocking doors as well whenever you go into park. 

 

I cannot remember how easy or hard this is. I believe it is install, then take it to the dealer but I honestly can't remember

MrCPUQC New Member

MrCPUQC

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5 hours ago, shakenfake said:

You can replace the BCM but yes the dealer is going to have to reprogram it to enable everything. I suggest getting a 2002 BCM so that you can get the auto unlocking doors as well whenever you go into park. 

 

I cannot remember how easy or hard this is. I believe it is install, then take it to the dealer but I honestly can't remember

Thank you for your answer! Let's say I know someone who has a Tech2 device. Would he be able to reprogram it? I know someone who has one and if I can save up going to the dealer it would help me...

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