What do the M+ and M- on an automatic transmission shifter represent?

[MacCaleb]

M stands for Manual, indicating the entry into manual shifting mode. Typically, there will be a + and a - sign next to the M gear. By moving the gear lever left/right or up/down, you can perform manual shifting. The usage methods under different circumstances are as follows: 1. Low-speed overtaking: Use "M-" to downshift. Lowering the gear increases torque output, allowing the car to accelerate quickly. A slight throttle assist makes overtaking easier. 2. Uphill driving: Use "M-" to downshift, providing sufficient torque. For steep slopes, you can lower the gear to first or second for more power. 3. Downhill driving: Use "M+" or "M-" to adjust the gear to 2-3, utilizing engine braking. If the speed remains high, apply the brakes for additional braking. 4. Slippery or icy roads: Adjust the gear to 2 using "M+" or "M-". Avoid sudden throttle inputs to reduce wheel spin and improve traction. 5. Highway driving: Use "M+" to upshift, maintaining a speed of 80-100km/h for better fuel efficiency.