[Tech II]

Then don't buy one....the whole purpose of the start/stop system is to increase fuel economy.....if you disable it, your fuel economy will drop.....

There is some variable control:

The system monitors vehicle speed, climate control system operation and other factors to determine whether it is efficient to shut off the engine. In some cases, such as heavy stop-and-go traffic, the engine will not shut down. The engine-stop function is not indefinite. The engine automatically restarts after approximately two minutes if the driver hasn’t removed his or her foot from the brake pedal. Additionally, a driver-selectable mode for the climate system allows the driver to choose between maximum stop/start efficiency and maximum air conditioning performance.

So if you choose max A/C efficiency, the start/stop feature will tend to be activated less....

This system uses two different kinds of batteries.....one for the engine, and one to supply electrical power for when the engine shuts off...now GM was not previously warrantying their batteries for the full 5 years(they were prorated).......will they be fully covered under the powertrain warranty for 5 years/100K?

Erica? Erica?

Also wonder if the average cost of repair rises dramatically with this system, after the 5 year warranty goes, and you buy this car on a used car lot, 5-6 years down the road? How long is that tandem starter going to last? What is it's cost compared to a regular starter? More and more modules are used in these cars....what will those costs be? The cost of fuel efficiency, is way more than the end result, when it comes to repairs of these cars.....