i havenít looked at my owners manual but the online owners manual on chevys site says it should remain in awd mode until itís deselected with the button regardless of shutting the ignition off. this is how it should operate saves a lot of wear on the axle disconnect. why disengage when u shut the car off if ur just gonna re engage it when u start it again? makes sense. but also just bc itís in ďawdĒ mode doesnít mean the rear wheels are locked in at all times it will engage and disengage in the transfer case as needed like previous models all the button does is enable this function and engage the rear differential so the drive rear drive shaft spins
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Wow. Super interesting. My Nox was built in Canada and purchased it mid-April.
I copied this from the manual I downloaded from the Chevy site BEFORE I purchased my Nox (I'm certain my hardcopy manual uses the wording).
Here's what my OM says on p. 232
Vehicles with this feature can
operate in All-Wheel
Drive (AWD) Mode.
The AWD system delivers power to
all four wheels and the system
adjusts as needed to improve
Press the AWD switch on the center
console to activate the system. The
AWD light will flash briefly while the
system is engaging and stay lit to
indicate AWD is active. Press the
button again to disable the system.
The light will flash briefly while the
system disables and then stay off.
The AWD Mode will stay selected
until the mode is changed. AWD
Mode is canceled with each ignition
When operated in two-wheel drive,
the vehicle will deliver power to the
front wheels only and may provide
better fuel economy.
Maybe they changed their mind about this function, sort of like the "rain sensing wipers", et al. Good to know AWD remaing on until changed, is (now) documented and considered the normal function / behavior.