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This is a difference in the 1550, 1600, and 1650 versions of firmware for the nav/HVAC. Notice the '07s all say it works fine? They have 1650 firmware (and no nav override screen that anyone has been able to find). All the '06's with 1550 or 1600 firmware will reset every time the power resets (start the car, etc.)
This is a difference in the 1550, 1600, and 1650 versions of firmware for the nav/HVAC. Notice the '07s all say it works fine? They have 1650 firmware (and no nav override screen that anyone has been able to find). All the '06's with 1550 or 1600 firmware will reset every time the power resets (start the car, etc.)
I can confirm this. My '06 used to lose the "auto" setting when the car was shut off. Since I had the Nav TSB performed (which replaced the map disc with one that has the 1650 firmware), it retains the setting.
Originally Posted by khangaroo
So is a firmware upgrade possible?
Yes, at least for cars with nav. It's on the map disc.
I can confirm this. My '06 used to lose the "auto" setting when the car was shut off. Since I had the Nav TSB performed (which replaced the map disc with one that has the 1650 firmware), it retains the setting.
Yes, at least for cars with nav. It's on the map disc.
So I guess the question is do I want to have the nav override or not have to mess with the auto air circulation....hmm...