Quote:
Originally Posted by mrfunji
In order for the vehicle to "autostop", a number of criteria have to be met ... most notably engine temperature and transmission temperature. The latter takes longer to warm up, and the colder the ambient temperature is, the more driving it would take.
I don't think the problem had that much to do w/ the high voltage battery, since the engine starter, (really one of the motors in the transmission, powered form the high voltage battery) performed fine (read engine started) in the cold weather ...
|
Yup. The morning I test drove a Yukon Hybrid, it had been sitting out all night and it was still only 15 degrees F. at 10:30 a.m. when I drove it. I was out between 15 and 20 minutes, and the transmission temperature was still only 77 degrees, and it never auto-stopped once. I believe another article said that the transmission has to reach 140 degrees before it will auto-stop the engine, which in those temperatures will obviously take a while.