Cadillac Owners Forum banner
1 - 5 of 5 Posts

·
Registered
2015 CTS Performance
Joined
·
214 Posts
And temp gauge reads zero and AC doesn't work, right? That's the programmed response to a thermostat or temperature sensor failure. See other threads on that, there are several.
 

·
Registered
2016 CTS 3.6
Joined
·
39 Posts
Discussion Starter · #3 ·
Well ac works, I turn off after turning on the fan (no ac needed now in TX) . Temp gauge working too. I was thinking a bad sensor. Going to try to take it in Monday but we are traveling now.
 

·
Registered
2015 CTS Performance
Joined
·
214 Posts
It's not the temp sensor or thermostat then because those other symptoms are definite. Several people here have reported tham and I read it in the service manual. Since the engine light is on it's easy. Read the code and start there.
 
1 - 5 of 5 Posts
Top