Although the “Drive” gear of automatic transmissions is the basic way to get your car moving forward, some vehicles have additional settings, such as “L” for “low gear.” The setting ...

In this mode, the gearbox can choose from any gear except Reverse, allowing the vehicle to move forward. Most modern vehicles with automatic transmissions have an additional setting after “D,” denoted ...

A freewheel in the back has two cogs, with a high gear for cruising and a low gear for climbing. If you pedal backward a half-rotation, the outer, higher gear engages or disengages, taking over ...

The electronically locking center differential provides a driver-selectable choice of two gear ranges: a low gear range for low speed and a high range for driving at normal speeds. While the low ...

“No problem!” you exclaim. “I’ll just use a USB battery pack!” But the current draw is too low, and the pack won’t stay on. “Blast!” you exclaim, because you’ve been watching too ...