Does shifting to R gear and stalling harm an automatic transmission car?

[Susie]

Brief instances won't cause damage, but frequent or prolonged occurrences will. The R gear is the reverse gear used when backing up, but it should only be engaged when the vehicle is completely stationary. Shifting into R while the car is still moving slowly can severely damage the transmission. Here's an introduction to automatic transmission gears: 1. L gear: Low gear limits speed. When climbing slopes, this gear maintains high RPM at low gear. 2. S gear: Sport mode allows free gear shifting but delays shift timing, keeping the engine at high RPM for extended periods, enabling low-gear high-RPM driving. 3. D gear: Drive gear is used for normal forward movement. 4. N gear: Neutral is for temporary stops. 5. P gear: Park gear should be engaged when parking to activate the parking brake and prevent rolling.

[McJameson]

I've been repairing cars for nearly twenty years and have seen many drivers panic while driving, especially when the engine suddenly stalls while shifting into reverse gear (R). Honestly, this is really bad for the car! The main issue lies with the transmission: when the engine stalls, the gears are still in reverse motion, and a sudden stop causes impact and extra wear. This is especially true for older cars with outdated transmission fluid, where components are more prone to breakage or oil leaks. Over time, repair costs skyrocket. Modern cars have electronic protection, so an occasional mistake might not be a big deal, but frequent mishandling will definitely cause harm. I recommend not rushing when parking—first firmly press the brake, shift to P (Park), and then turn off the engine. This way, your car will stay healthy and last longer. During maintenance, check the fluids regularly—don’t cut corners and harm your beloved ride.

[OCassandra]

As an ordinary office worker, I've done this before – braking too hard while reversing into a parking space caused the car to stall in R gear. The car jerked violently and almost hit the wall. Later, I asked a mechanic who said it's indeed not good. Stalling in reverse gear puts sudden excessive stress on the connection point between the engine and transmission, which can easily lead to loosening or deformation of internal components. Especially for new cars under warranty, such operations might affect warranty claims. Now I always remind myself: park steadily on level ground, shift to P gear, engage the handbrake, and then turn off the engine. Chatting with friends, I found many have experienced similar awkward situations. I suggest everyone pay more attention to developing good habits – it's safer, more worry-free, and saves money in the long run. Don't lose big for small gains.

[LaTalia]

Every car enthusiast knows that stalling the engine while in R (Reverse) gear is a bad habit. Simply put, when the gears are still reversing and suddenly stop, it increases the impact, accelerating wear on the transmission's synchronizers or clutch plates. At best, you'll notice louder noises and jerky acceleration; at worst, you might need major repairs or part replacements. Some modified cars with sensitive electronic systems might even throw a fault code after just one stall. From personal testing, the car will noticeably shake as if it's throwing a tantrum. The way to avoid this? Don't rush to turn off the engine while in reverse. Developing good habits saves a lot more money than repairs.

[SanEliana]

As we elderly drivers gain more experience, we understand that even minor mistakes can lead to major disasters. When I was younger, I once hastily parked on a slope, left the car in R gear, and turned off the engine—the car immediately shook violently. Later, the mechanic explained that the transmission suffered from reverse force, which could cause oil seal leakage leading to lubrication failure, and the engine would also be affected. After driving for so many years, experience has taught me: safety comes first. Parking must be done smoothly—shift to N gear to buffer before switching to P gear and turning off the engine. Especially with older cars, where parts are worn out, a little carelessness can result in expensive repairs. Paying more attention can save a lot of trouble.

[Holden]

As a new driver, I was curious and tried shifting into reverse while the engine was running right after getting my license. The car shook violently, as if it was about to fall apart. After researching, I learned that this subjects the transmission gears to reverse torque, causing shockwaves that damage internal components and shorten their lifespan. Frequent operation like this can lead to costly repairs. To avoid repeating this mistake, I now take my time when parking: come to a complete stop, shift to P, engage the handbrake, and then turn off the engine. My instructor also said that good habits start with small steps—treat your car well, and it will run safely and reliably for you in the long term.