Rear heat issue

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Joined
Jan 6, 2018
Threads
23
Messages
265
Location
canada
I've had this issue for a while and kind of ignored it until now but since being stuck at home I figured I would dig into it. Whenever the front climate controls are on HI (hot) the rear overhead vents blow cold air for prob about 20 min. Is this normal to take that long to warm up? Same with AC in the summer, the overhead vents take forever to blow cold air. 09 LX. Thoughts?
 
Maybe a silly question but are you turning off the 4 zone control on the climate page when experiencing this? I find it quite common to need to do this when my kids mess with the controls in the back.
 
no 4 zone is on all the time

Turn 4 zone OFF. Then it will match what you set in front. If you leave it on...then it’s running the rear at whatever the row two controls are set to. Or...check and set row two individually if you want 4-zone.

Ps. 4-Zone gets turned back on if/when anyone’s up/down temp button is pressed except for driver.
 
tow 2 is set to the highest setting usually when this happens. I will try it with 4 zone off tomorrow.
 
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