Mach-Lee
Well-Known Member
- First Name
- Lee
- Joined
- Jul 16, 2021
- Threads
- 262
- Messages
- 11,345
- Reaction score
- 24,967
- Location
- Wisconsin
- Vehicles
- 2022 Mach-E Premium AWD
- Occupation
- Sci/Eng
Rick is right, Ford's recirc strategy (since the 90's) has always included an automatic "purge" cycle that opens up the fresh air every so often. Otherwise people would eventually pass out in the cabin from buildup of carbon dioxide (it would act as a sealed room). However on ICE vehicles it used to be a much longer period, maybe up to 30 minutes before the vent opens for several minutes.To be fair to the OP, I’ve owned about 20 Fords in my lifetime. Before the MME, my latest were a 13 Explorer and a 17 F150. They all had hardware buttons for recirc. No auto turn off.
Also to note, last summer, I think after a 2.8.x update, my recirc stayed on. Now, after 3.x, it shuts itself off again.
Since the Police Explorer carbon monoxide recalls in 2017, Ford has been much more proactive about maintaining fresh air in the cabin, which means automatically disabling recirc more often and for longer. In the case of the Mach-E, the recirc is disabled to prevent window fogging, which uses more energy to remove.
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