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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.
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My heater will not go to the defroster and the rear heater

Customer Question

My heater will not go to the defroster and the rear heater is always cold
Submitted: 1 year ago.
Category: Chevy
Expert:  John Bryant replied 1 year ago.

Hi Matthew, my name is***** for posting your question to Just Answer. I am an ASE Certified Auto Technician with 45 years of real world experience in dealerships and the aftermarket. I was the owner of a facility for 20 of those years. I am confident we can resolve your problem together. Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resolution. I will also make every effort to give all of the information you may need with the expectation you will give me a positive rating. Please be aware that I am usually working with a few people at a time so it may take a few minutes to respond.

Does this Tahoe have manual heater controls?

Customer: replied 1 year ago.
as well as auto climate
Customer: replied 1 year ago.
Everything worked fine until I had the ac compressor replaced when the bearings went out
Expert:  John Bryant replied 1 year ago.

So it is climate controlled?

Customer: replied 1 year ago.
Expert:  John Bryant replied 1 year ago.

Do the controls light up when the ignition is on?

Customer: replied 1 year ago.
they do
Expert:  John Bryant replied 1 year ago.

If this Tahoe has automatic climate control there will be codes in the "Body Control module" BCM. Do you have access to a scanner that can access the BCM? If yes pull the codes and get back to me I will walk you through a fix. God bless you in the New Year!

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