Can You Switch Between D and M Gears While Driving?

2 Answers
VanCollin
07/29/25 4:34am
D and M gears can be switched while driving. Here are the specific details about the M gear in cars: 1. Usage Method: The M gear refers to the manual-automatic transmission gear in modern cars. When the gear lever is shifted into M gear, gear shifting is manually controlled by the driver. There are usually "+" or "-" symbols near the M gear, where "+" represents upshifting and "-" represents downshifting, or gear changes can be made using the steering wheel paddle shifters. 2. Purpose of M Gear: The M gear is primarily used for driving in more challenging conditions, such as steep slopes, and is also known as the climbing gear. The M gear can be used for overtaking; engaging the M gear provides greater traction, and after completing the overtaking maneuver, the gear can be shifted back to D gear.
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DelLorenzo
08/12/25 8:16am
I've driven many automatic transmission cars before and found that switching between D and M modes while driving is completely fine—it's a standard feature of modern transmission design. As long as the car is moving, you can directly shift from D to M or vice versa. The operation is simple: just pull the gear lever or press the paddle shifter, and the computer will handle the shifting process automatically. I often switch to M mode on highways to control acceleration, such as manually downshifting for more torque when overtaking or maintaining higher gears for fuel efficiency during long-distance driving. However, pay attention to small details: avoid switching when the engine RPM is too high or during hard braking to prevent shock to the transmission system; the safest time to switch is during smooth driving. Once you get used to it, you can also use M mode for better speed control on uphill climbs or slippery roads. Remember to regularly service the transmission fluid at the dealership to prevent potential wear issues.
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