The Correct Operation Method for Automatic Transmission Vehicles When Stopping at Traffic Lights

[VonBradley]

The correct operation method for automatic transmission vehicles when stopping at traffic lights is to shift into neutral and apply the handbrake or electronic brake. Shifting into neutral can cut off the engine's power and save fuel, while the handbrake mainly prevents the vehicle from sliding when stationary. Another method is to directly step on the brake without shifting gears, which is suitable for temporary stops. When waiting at traffic lights, different drivers may use different parking methods. For very short stops, drivers can simply step on the brake while keeping the gear in D, allowing them to drive off immediately when the light turns green without restarting. Some vehicles are also equipped with an automatic start-stop function, which primarily enhances driving safety. When the system detects that the driver needs to stop, the automatic start-stop device activates, shutting off the engine.

[VonRobert]

When driving to and from work, I often encounter traffic lights. When stopping, I simply press the brake to keep the car steady in D gear without the need to shift back and forth. If the red light is particularly long, lasting over half a minute, I shift to N gear and pull the handbrake, giving my leg a rest and reducing transmission pressure. In the city, where signals change quickly, avoid shifting to P gear to prevent delays in starting or potential damage if rear-ended. Safety-wise, always keep an eye on the signal to watch for sudden movements from the car ahead or a possible collision from behind. I’ve developed this habit over several years—it’s smooth, hassle-free, and doesn’t affect daily commute efficiency. Honestly, it doesn’t feel complicated at all.

[Emma]

I usually focus on environmental protection and fuel efficiency, and I have the habit of shifting to neutral (N) gear and pulling the handbrake when stopping at traffic lights. This reduces engine load and saves a bit more fuel compared to keeping the transmission in drive (D) gear while braking—even small savings can add up to reduce emissions over time. It's fine to stay in D gear for short red lights, but holding D gear for long lights exceeding 30 seconds can cause the transmission to overheat and wear out components, which is uneconomical in the long run. My car also has an auto start-stop feature, which automatically shuts off and restarts the engine when stopped at lights, working together to save energy and keep things quiet. These small urban driving techniques help enhance overall green driving awareness, benefiting both the environment and myself.

[MorganFitz]

I've been driving automatic transmission cars for many years, and when stopping at traffic lights, I always maintain control by pressing the brake, keeping the car in D gear for short periods. If the light takes slightly longer, I decisively shift to N gear without coasting in neutral to prevent excessive wear on the drivetrain. I avoid shifting to P gear to prevent damage to the locking pin, which could lead to troublesome repairs. Although the transmission is designed intelligently, I always remind myself not to let the car idle in D gear for too long to avoid heat buildup. Through regular maintenance, I've found that this approach extends the lifespan of components. Safety comes first when driving, and it's essential to keep a close eye on the traffic light changes.