Quote:
Originally Posted by 2K16SummitSS
I can promise you it is the thermostat sticking open, causing your car to go into safe mode because it actually reads too low of a temp consistently. Temp gauge drops to 0, fans kick on to 100%, rev match won't work (if you have manual). I went through this multiple times over the course of a year, disconnected and reset, replaced the temp gauge, until I was finally told it was the thermostat causing all of my issues. I have seen this exact problem pop up for many over a few different forums/facebook pages, so I'm guessing our thermostats aren't so great. 10 minute install, cheap and easy fix. Thermostat is right on the top of the engine. If you're under warranty and don't feel comfortable doing it yourself, point the dealer in that direction.
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I think you nailed it. Engine temp gauge is pegged at the bottom, with no temperature reading whatsoever. I think the car's in safe mode, as the fan runs incessantly and the air conditioning won't work. It's almost like safe mode presumes the car is overheating and prepares for a worst-case scenario by constantly running the engine fan and disabling heat-inducing accessories like a/c.