
Automatic D+D- is a manual mode that allows the driver to freely select the appropriate gear. Push the lever to the left to enter manual mode, then push it towards the "+" sign to upshift and towards the "-" sign to downshift.

I commute daily with a car equipped with a manual-automatic transmission, and experience tells me that the D (Drive) gear is the primary mode: After starting the car and pressing the brake, shift the gear to the D position, and it automatically changes gears, suitable for flat urban roads and highway driving—effortless and convenient. When encountering uphill or downhill slopes, switch to manual mode and select D1 (1st gear), keeping the engine at low RPMs to provide strong climbing power or engine braking for deceleration. The operation involves directly shifting the gear lever to the manual zone or using the +/- buttons to select 1st gear (D1 is 1st gear). This method also works in traffic jams, avoiding frequent automatic gear shifts that wear out components. After driving for several years, I found that practicing a few times makes it easy to master—beginners can try it out in an open area. Note: Long-term use of D gear is fine, but switching to manual D1 in special road conditions improves safety and efficiency. The key is not to shift to too low a gear at high speeds.

On weekends, I love going on self-driving trips through mountain roads, where the manual-automatic transmission is my great helper. The D gear is used for normal straight driving and gentle downhill slopes, with smooth automatic shifting. However, when climbing steep slopes or descending long, sharp curves, I switch to manual mode and select D1 gear to lock in a low gear, preventing engine strain and reducing brake usage to protect the car. The operation is simple: while driving, just shift the gear lever or press the gear button to select D1 position, but remember to slow down when switching to manual mode to avoid damaging the car. This trick is especially useful on winding mountain roads, and combined with throttle control, it ensures a stable ride. I’ve also found that when carrying heavy loads during trips, switching to D1 makes climbing hills much easier. My friends all find this tip practical. Safety first—don’t forget to check the dashboard for shift prompts.

When I first started driving, I wasn't familiar with the transmission, but now I understand: basically use D gear for all normal roads, just step on the brake and shift to D when starting the car. When climbing or starting on a slope, switch to manual mode and select D1 gear for more engine power and no rolling back. The operation is simple—just shift the gear lever to the manual zone and select the 1st gear position (D1 indicates low gear). New drivers will get used to it after a few practices. Use D1 less in city driving, only switch when special needs arise to avoid high RPM damage. Remember, reduce the speed below 20km/h before shifting gears, safety first. When I was learning to drive, my instructor emphasized this principle: D gear is automatic and convenient, D1 is manual for enhanced control, practice more and don't be nervous.

I'm used to fuel-efficient driving, and here's how I do it with a manual-automatic transmission: usually driving in D gear on highways and flat roads saves a lot of fuel; when climbing or descending, I use D1 gear to improve engine efficiency and reduce fuel consumption caused by gear shifting. In terms of operation, while driving, I shift the gear lever to manual mode and select D1 for stable low-gear power output. I use D1 more often when carrying heavy loads or on long slopes, and actual tests show it can save 10% fuel. Remember to shift gears smoothly and avoid sudden acceleration. I also combine it with cruise control to improve overall fuel economy. In city driving, I rarely switch to manual mode, only doing so when necessary to be more eco-friendly.

Occasionally enjoying the thrill of driving, I've tried the manual mode of an automatic transmission: D gear for daily use, but switching to D1 gear in manual mode during starts or corners locks in first gear for strong acceleration and quick engine response. The operation involves shifting the gear lever to the manual zone to select D1 position or using paddle shifters for practice when stationary or at low speeds. On mountain road curves, switching to D1 provides more stability, but be mindful not to exceed the redline to avoid engine damage. Though not frequently used, it's fun and, once mastered, creates a sense of harmony between driver and car.


