What does D+/- mean in automatic transmission and how to switch?

2 Answers
DiAubrey
07/24/25 9:59am
Automatic transmission "D+" and "D-" refer to the manual mode of the vehicle. When the gear is in D position, move the gear lever to the left or right to switch to manual mode. In manual mode, you can change gears by operating "D+" and "D-". Pushing towards "D+" means upshifting, while pushing towards "D-" means downshifting. More details about automatic transmission D+/- are as follows: 1. Introduction 1: Although traditional automatic transmissions have advantages in operability and driving comfort, they do not have the freedom of manual transmission models. This is how the manual-automatic transmission came into being. 2. Introduction 2: While it has the function of automatic shifting, it also has the function of simulating manual shifting. Its emergence allows more models to be free from the constraints of traditional automatic transmissions, giving drivers the freedom of manual shifting and driving pleasure.
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AutumnFitz
08/11/25 5:13am
My car is an automatic transmission, and that D+- is actually the manual shift mode. Normally when driving in D gear, you can push the gear lever to perform upshift and downshift operations. This means using + to upshift and increase speed, and - to downshift and increase torque, such as pulling it down when going uphill to give the engine more power. Switching is simple: after starting the car and shifting to D gear, just push the lever to the right to upshift and to the left to downshift; some cars use a push-pull motion, similar to button operation. I often use it when driving on highways in mountainous areas—downshifting early on steep descents can act as a brake, saving me from slamming on the brakes. This allows for more flexible control of the RPM, saving fuel and protecting the engine. Beginners should try it gradually and avoid aggressive downshifting at high speeds, as it can easily damage the car.
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