Rear Hatch lock

Hi..New Member here. I have a 2006 Tahoe 2WD base model. The rear hatch will not lock. I have secured a replacement assembly and will install it soon. The truck was purchased with no remotes. I bought 2 on E Bay and they will not program using the instructions on U Tube. Can the bad hatch lock be the cause of it not programming? Thanks for any help.

It's doubtful that the lock would cause a programming issue. The lock just sits there until it gets a command to lock or unlock. While you have it opened up, you should check for voltage going to the lock while a helper hits the power lock switch. If you're not getting voltage, a new lock won't help.

Did you get the correct fobs? Talking about the correct FCC numbers on the back of the fob case.

You can take the truck and the 2 fobs to your local locksmith, and for about $30, they will program the fobs for you.

Tonyrodz said:

Did you get the correct fobs? Talking about the correct FCC numbers on the back of the fob case.

Click to expand...

I did not receive any remotes with the truck. I checked with an E Bay seller who advised me they would work.

XBrooklyn13 said:

I did not receive any remotes with the truck. I checked with an E Bay seller who advised me they would work.

Click to expand...

Does he have good reviews? Not all sellers are trustworthy. You have to get a specific FCC number for the fobs to work for your vehicle. I think i read on the forum the passenger side window control--that whole setup--has something to do with syncing the fobs yo the truck--not positive tho. I think @Doubeleive has some knowledge on this subject.

the best way to go about getting the correct fob is to call a gm dealer and give them the last 8 of your vin and ask them for the correct fob part number.
the rear hatch lock "might" cause a fob programming issue I guess it depends on how it has failed. Can't say either way on the gmt800's as this hasn't come up before, but with the newer trucks the rear hatch module can be problematic in general.
I would get the correct part number from the dealer and then reference that to what you purchased off ebay and confirm if they are "supposed" to work or not.
then verify the correct programming method for a 2006. make sure the battery in the fob and battery in the vehicle is good, low voltage on either can be a problem.
on the other hand without any direct reference to what you bought off of ebay they could be junk aftermarket fobs that may not work well.
I wouldn't worry about the remote control door lock switch until you know you have a good working fob and if it can't be programmed even with a tool.