Under what circumstances is the L gear used?

[VanLydia]

When descending a slope, engaging the L gear restricts the transmission to lower gears, allowing the driver to utilize the engine braking effect to control vehicle speed. This reduces the burden on the brake system, minimizes the risk of brake fade due to overheating, and enhances driving safety. For vehicles without an L gear but equipped with manual mode, the manual mode can be used for downhill driving. The L gear is also suitable for climbing steep slopes, as it keeps the transmission in lower gears to prevent frequent gear shifts, thereby providing more power for hill climbing and protecting the transmission. While manual mode is useful in certain situations, it's important to note that the manual mode in automatic transmissions differs from manual transmissions. Manual transmissions allow drivers to select any gear directly, whereas the manual mode in automatic transmissions only permits manual upshifting or downshifting.