AZBill
Well-Known Member
- First Name
- Bill
- Joined
- May 26, 2021
- Threads
- 12
- Messages
- 1,992
- Reaction score
- 2,319
- Location
- Arizona
- Vehicles
- MME CA Route 1, Hummer EV SUT, Escalade IQ
- Occupation
- Retired
There are other single point failures; the button, the fuse, the blower motor, etc.Having max front defrost available is a requirement. How it is implemented is not. But if it is only on the screen and the screen dies or has a widespread issue where it won't turn on due to a memory issue like Tesla had, then you have to issue a recall. By having a hard button as backup then if the screen fails you are still compliant
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