Should I use D+ or D- when going uphill?

[KatherineLee]

When going uphill, greater power is needed. Use D- to downshift the vehicle and obtain higher torque for climbing. Below are some precautions for uphill driving: When climbing for an extended period: Shift to a lower gear in advance. If you attempt to force your way up in a high gear, you will inevitably need to press the accelerator harder, engaging the fuel-saving device. At this point, although the engine speed is high, the increase in vehicle speed is very limited, resulting in a sharp rise in fuel consumption. Therefore, when you feel the car has enough power to drive in a higher gear, shift up to the next higher gear promptly. When driving up a steep slope: You must select an appropriate gear based on the slope conditions to keep the engine sufficiently powerful. If the power is insufficient, downshift quickly and avoid forcing the engine, which could lead to stalling. If you miss the opportunity to shift, you can skip a gear when downshifting. If you cannot engage the gear or the engine stalls, immediately use both the service brake and the parking brake to stop the vehicle forcibly, then restart.