General Mishap Co
TYF Newbie
- Joined
- Jul 22, 2020
- Posts
- 10
- Reaction score
- 6
Greetings
I just acquired my first GMC product(2003 Yukon Denali) and I'm hoping someone here can help with an AC problem I've noticed 3 times now in 2 weeks. AC is cold and consistent while driving, however, 3 different times at cold startup, I've noticed that the AC blows hot while I'm idling in park. Also noticed, while its blowing hot, the compressor is short cycling at about 10 seconds or so. It seems that as soon as I start driving it gets cold. When I then park it, but leave it idle, it stays cold.
The issue seems to be only at cold start and only sometimes.
Also, this may or may not be related, but I've noticed the temp and compass LCD in the rearview mirror intermittently will flash on and off and a regular steady pace. The "passenger airbag" light on the mirror also flashes at the same time.
I'm wondering if these are symptoms of a failing BCM, or individual issues? Any reliable way to test?
Thanks
Sean
I just acquired my first GMC product(2003 Yukon Denali) and I'm hoping someone here can help with an AC problem I've noticed 3 times now in 2 weeks. AC is cold and consistent while driving, however, 3 different times at cold startup, I've noticed that the AC blows hot while I'm idling in park. Also noticed, while its blowing hot, the compressor is short cycling at about 10 seconds or so. It seems that as soon as I start driving it gets cold. When I then park it, but leave it idle, it stays cold.
The issue seems to be only at cold start and only sometimes.
Also, this may or may not be related, but I've noticed the temp and compass LCD in the rearview mirror intermittently will flash on and off and a regular steady pace. The "passenger airbag" light on the mirror also flashes at the same time.
I'm wondering if these are symptoms of a failing BCM, or individual issues? Any reliable way to test?
Thanks
Sean