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What are the plus and minus signs on the D gear of an automatic transmission car for?

1 Answers

LeViolet

07/29/25 4:15pm

The plus and minus signs on the D gear of an automatic transmission indicate manual mode. When you need to shift gears, pushing the gear lever forward will downshift, while pulling it backward will upshift. However, if the vehicle speed and engine RPM do not meet the requirements, upshifting will not be possible. Each operation must be approved by the transmission control unit. In manual mode, the transmission will downshift when the speed is low, but it will not upshift automatically. The D gear of an automatic transmission car does not have engine braking capability. As the speed increases during downhill driving, the transmission will continuously shift to higher gears, causing the vehicle to accelerate. This requires frequent use of the foot brake to control speed, which can easily lead to overheating and failure of the brakes due to excessive use, posing a significant danger.

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