So I finally figured out that I have been running the A/C compressor for the entire first 2 months of ownership. I could always hear what I suspected might be the A/C compressor turning on and off while idling but could never really figure out why. Sounds stupid I know and yes I have owned several vehicles with "automatic" climate control settings but the new Titan's is especially confusing.
Page 4-43 in the Owners Manual "Automatic Operations"
" The temperature of the passenger compartment
will be maintained automatically. Air
flow distribution, fan speed and A/C on/off
are also controlled automatically. The A/C
button indicator will remain in the last user
setting. Under this condition, the indicator
light on the A/C button indicator will not turn
on if the user had not selected the A/C
button off. Turning off the air conditioning via
the A/C button is not allowed in this mode. If
the A/C button indicator was on when entering
this mode, and the A/C button is selected
in this mode, the A/C button indicator
will turn off, but the A/C compressor will still
be automatically enabled. For additional information,
refer to “Air flow control” in this
section.
To turn off the compressor, turn off auto
mode, then turn the A/C on then off until the
A/C button indicator is not lit."
In short, if you (or someone before you) has the A/C on then enters Automatic Mode, then turns the A/C off while in Automatic mode (the A/C light goes out) then turns off auto mode, the A/C compressor will continue to run without the A/C light on while not in auto mode...AND it will continue to operate in that manner (compressor on without the A/C light on). Neither turning off the climate controls nor turning off the vehicle will reset this manner of operation. You must turn on and back off the A/C while not in Auto mode to return back to normal operation.
Not sure if it was like this in the 1st Gen Titan, it definitely didn't function like that in my 2015 Frontier. Anyways maybe everyone already knew this but hopefully this post will help someone.
Page 4-43 in the Owners Manual "Automatic Operations"
" The temperature of the passenger compartment
will be maintained automatically. Air
flow distribution, fan speed and A/C on/off
are also controlled automatically. The A/C
button indicator will remain in the last user
setting. Under this condition, the indicator
light on the A/C button indicator will not turn
on if the user had not selected the A/C
button off. Turning off the air conditioning via
the A/C button is not allowed in this mode. If
the A/C button indicator was on when entering
this mode, and the A/C button is selected
in this mode, the A/C button indicator
will turn off, but the A/C compressor will still
be automatically enabled. For additional information,
refer to “Air flow control” in this
section.
To turn off the compressor, turn off auto
mode, then turn the A/C on then off until the
A/C button indicator is not lit."
In short, if you (or someone before you) has the A/C on then enters Automatic Mode, then turns the A/C off while in Automatic mode (the A/C light goes out) then turns off auto mode, the A/C compressor will continue to run without the A/C light on while not in auto mode...AND it will continue to operate in that manner (compressor on without the A/C light on). Neither turning off the climate controls nor turning off the vehicle will reset this manner of operation. You must turn on and back off the A/C while not in Auto mode to return back to normal operation.
Not sure if it was like this in the 1st Gen Titan, it definitely didn't function like that in my 2015 Frontier. Anyways maybe everyone already knew this but hopefully this post will help someone.