What are the gears of the 2021 Buick Regal?

1 Answers
DelJackson
07/30/25 1:26am
Here is a detailed introduction to the gears of the 2021 Buick Regal: 1. P (Park) is the parking gear. When the gear selector is in the P position, the transmission is in neutral, but the output shaft is mechanically locked. The car will remain stationary even without pressing the brake, and it is generally used for long-term parking. When engaging the P gear, the car must be completely stationary. Do not engage P gear when the car is not fully stopped, and always apply the parking brake. When parking on a slope, engage the parking brake first before shifting into P gear. 2. R (Reverse) is the reverse gear. When the gear selector is in the R position, the transmission's output shaft rotates in the opposite direction to the engine, allowing the car to move backward. When engaging R gear, the car must be completely stationary. Do not engage R gear when the car is not fully stopped. 3. N (Neutral) is the neutral gear. When the gear selector is in the N position, the gears inside the transmission are in freewheeling mode, and the clutch is not engaged, resulting in minimal load on the transmission. N gear is generally used for short stops, such as waiting at a traffic light, or when the car is being towed. 4. D (Drive) is the driving gear. When the gear selector is in the D position, the transmission's internal gears automatically shift between the lowest and highest gears based on factors like vehicle speed and throttle opening, following preset shift patterns. In most cases, D gear can be used for driving. 5. L (Low) is the numerical limit gear. When the gear selector is in these positions, the transmission can only shift within the limited gears. "1" or "L" is the lowest gear of the transmission and is generally used only when extremely strong power is needed, such as climbing steep slopes or towing heavy vehicles.
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