25th Jul 2014, 23:19

After rain, the door locks and alarms start cycling randomly, which can be canceled with the remote. It may go off 10 times in 2 minutes, or stay off for an hour. While parked the door locks cycle randomly. Tried to reset the passive lock with no luck. Someone suggested the BCM, which was replaced two months ago at a huge cost from a repair shop.

Frustrated. Any suggestions?

9th Aug 2014, 19:20

Thanks a lot. I was in South Carolina on vacation, worried about how to get the windows down or A/C working properly to make the fifteen hour drive with my kids.

21st Sep 2014, 21:08

My wipers radio and power windows will not work. How do I fix it?

1st Oct 2014, 13:33

Slap the side of the console. Your problem is caused by a poor connection inside the body control module buried deep inside the console. You can replace it, but it is very expensive.

30th Dec 2014, 09:20

I have a 99 Yukon and it's doing the same thing. I've taken her to GMC over and over again, and put in another $2000+. If you fixed the problem on yours, please let me know what it was... Thank you.

1st Jan 2015, 15:41

Check the fuse.

23rd Mar 2015, 03:20


I have a 99 Yukon with 90,000 miles on it.

I live in south FL. Also, my air cuts out until you give it the gas, then starts back?? Just stops blowing when on cruise a while. Any ideas?? Where did you get yours fixed??

Thanks in advance.


9th Apr 2015, 04:58

Had the same problem. Ended up being the lock switch by the rear hatch. It will be to your right when you open the hatch. Just pop it out and disconnect it, and you'll be good to go.

17th Apr 2015, 20:03

That's what I did with my friend's new to him Yukon. It did the trick.

12th May 2015, 23:44

It is your BCM or body control module. You can pull it apart and repair it for free. Search YouTube for body control module 1999 Escalade.

31st May 2015, 13:48

In response to 25 July, 2014. Sounds like something is getting wet when it rains and shorting out the electronics. A water seal is bad somewhere. It's just an aging vehicle. Good luck.

18th Jun 2018, 01:23

I have a 1999 GMC Yukon Denali with a 9 inch lift. I have an LT4 hot cam installed as well. I've had mine for about 3 years. I'm a General Motors certified tech. I had the same exact problem. This issue is caused by weak solder inside the Body Control Module. It's located under the center console. If you remove the module and open it up, look for black or burnt solder. It's only fairly burnt because of the poor connection. I removed the old solder and soldered a new bead, and mine hasn't let me down in over 2 years and it works. It's my daily driver.

This is a good tip for people who like to do their own repairs. It's a guaranteed fix if everything else is in working order.