2023 suburban rear heat not working

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

hollab

TYF Newbie
Joined
Nov 8, 2025
Posts
3
Reaction score
0
My rear heat has quit working on 2023 suburban. I took rear panel and checked the blend motor and it works, coolant is normal. Rear fan works fine and A/C blows cold. I have not been able to locate the fuse if their is one for rear heat, I found rear display but nothing else. Which fuse would this be/ labeled as. And if fuse is good what else do I need to look at?
 

Big Mama

Full Access Member
Joined
Jul 21, 2015
Posts
3,881
Reaction score
2,499
Location
Virginia
I’m not sure there is a fuse but I read there’s a control valve under the truck on the passenger side that can get clogged. A 2023 should still be under warranty. Have you considered taking it in?
 

Joseph Garcia

Elite Member
Supporting Member
Joined
Aug 2, 2018
Posts
10,284
Reaction score
14,890
Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please.

I cannot personally assist you with your issue, but other members of this Forum much more knowledgeable than me in this area will chime in.
 
OP
OP
H

hollab

TYF Newbie
Joined
Nov 8, 2025
Posts
3
Reaction score
0
I’m not sure there is a fuse but I read there’s a control valve under the truck on the passenger side that can get clogged. A 2023 should still be under warranty. Have you considered taking it in?
Ok thanks, and I'm pretty sure warranty is out, but I dont like dealing with dealerships anyway just crooks
 

Big Mama

Full Access Member
Joined
Jul 21, 2015
Posts
3,881
Reaction score
2,499
Location
Virginia
Totally agree. You should have 3 years or 36000 miles of bumper to bumper coverage regardless of how many owners it’s had.
 

Forum statistics

Threads
137,702
Posts
1,990,001
Members
102,698
Latest member
JamesinAbilene
Back
Top