Nine-speed gearboxes may be commonplace now, but the world's first example didn't have such an easy birth when it was launched. And it wasn't that long ago.

Since modern automatic transmissions are generally seamless, any noticeable symptoms are important warnings that should prompt an immediate diagnosis.

Some drivers notice something odd after servicing an automatic transmission. The car may shift more abruptly, hesitate, or feel less smooth right after the fluid change, even if the transmission ...

Automatic transmission problems can be fixed by just replacing the transmission fluid or can even cost you upwards of $5000 for a complete rebuild. Minor transmission services include resealing for ...

CARS.COM — Why does your automatic transmission act funny? The most common causes include leaking seals, mechanical damage, worn-out transmission fluid or inadequate transmission fluid level, but we ...

Generally speaking, most automatic transmissions can take a beating, and will last many hundreds of thousands of miles, but that doesn't mean they are invincible. Much like any other part of your car, ...

My firsthand experience dealing with used cars has led me on a long and arduous journey of diagnosing and troubleshooting various issues and faults. I've had my fair share of engine misfires, ...

Your car might start without complaint every morning and sail through its last inspection, but […] ...