The best time to use low gear mode is when driving up and down a steep incline or when towing a heavy trailer. Don't use it ...

Most automatic transmissions, however, can do much more than just go forward, go backwards, and stop your car from rolling into traffic. Some have lower gears you can shift into.

If you bought a new car and are confused what the "M" means on or near your gear shift, don't worry. Here's what is, what it does, and when to use it.

Every automatic transmission car has a neutral gear, but you won't find yourself using it very often. Here's when you should (and shouldn't) shift to neutral.