How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
Type Your Chevy Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

I have a 2005 trailblazer. I can't program new car remotes.

Customer Question

I have a 2005 trailblazer. I can't program new car remotes. I follow the instructions for programming perfectly found online and with the company that sold me the remote. There seems to be an issue where once the car enters programming mode by locking and unlocking the doors and sounding the car horn, that only a few seconds it automatically leaves programming mode, signaling the same way, locking and unlocking and sounding the car horn.What's wrong? This seems to be a somewhat common issue, because I saw an online car forum that discussed this, but they found no solution. They determined that the alarm system was aftermarket, but mine was purchased brand new from the dealer.
Submitted: 11 months ago.
Category: Chevy
Expert:  Eric replied 11 months ago.


Are you keeping the unlock button held down or releasing it after a couple of seconds?

Customer: replied 11 months ago.
I've tried every both. I've tried everything I can possibly try, really, as far as the way that I do the programming procedure.
Expert:  Eric replied 11 months ago.


Are the remotes you bought factory GM or aftermarket?

If aftermarket, what brand?

Customer: replied 11 months ago.
Aftermarket. Brand is BestKeys
Expert:  Eric replied 11 months ago.


Ok, I will have to opt out as I dont have their programming directions. If another expert does, they will post here