6 speed transmission questions.
So I came out of the ice age and got a Suburban with the new 6 speed transmission (PRNDM_1). Reading the manual, it seems a little daunting. So how do you use it when towing? And what about steep...
Forum Discussion
TomG2 wrote:
"..... I find little practical use for a feature that limits downshifting or forces upshifting"
Have you actually driven a late model GM 6-speed. Mine has yet to refuse to downshift. What "limit" is that?
Ummm, yes, the 2010 Suburban in my signature. Have you ever driven an automatic transmission with true "manual" shifting capabilities? I own one of those as well, and the difference in operation is clear.
I don't know how to put it any other way than the GM auto does not have true manual shifting programming that other automatics have. The "M" setting really doesn't offer a feature that GM's 4 spd transmissions did not have -- it serves only to limit access to upper gears, and that is all. The button on the shift column is just a more elegant solution to allow the selection, which often leads to confusion as to what the "M" stands for.
Sorry I cannot explain it better.
