Release the Handbrake First or Shift Gears First?

[BrielleLee]

Both automatic and manual transmissions should follow the same starting sequence: shift into gear first, then release the handbrake. Relevant details are as follows: 1. Automatic Transmission: Automatic transmissions can be categorized into CVT, AT, dual-clutch, etc. Among them, CVT and AT use a torque converter to transmit engine power to the transmission, while dual-clutch transmissions transmit power through friction plates similar to manual transmissions. 2. Start as Soon as Possible: If you engage the gear without releasing the handbrake, all the power output by the engine will be absorbed by the torque converter, causing its temperature to rise sharply. Prolonged exposure to this condition can burn out the torque converter. For dual-clutch transmissions, after engaging the gear, the clutch friction plates will be in a semi-engaged state. Prolonged semi-engagement can lead to burning out the friction plates, so it is necessary to start as soon as possible.

[Eugene]

I always engage the gear before releasing the handbrake when driving, a habit repeatedly emphasized by my driving instructor. Especially when parked on a slope, releasing the handbrake first can easily cause the car to roll backward, which is particularly dangerous. By first shifting into D or R gear, the engine and transmission are engaged, and then releasing the handbrake ensures a stable start. I remember once in a steep underground mall parking lot, a novice driver in front of me released the handbrake first, causing their car to roll back half a meter, nearly hitting my bumper. The same principle applies to manual transmissions: first press the clutch, shift into first gear, partially engage the clutch to the biting point, and only then release the handbrake. This practice is not only safer but also protects the transmission by avoiding sudden force impacts.

[VanJayla]

I worked as a mechanic at a 4S shop for several years and recommend developing the habit of shifting gears before releasing the handbrake. The main consideration is the protection of the drivetrain: when you shift gears with the handbrake engaged, the transmission gear set and driveshaft are actually in a preparatory state. If you release the handbrake before shifting, the vehicle may move momentarily on a slope, and suddenly engaging the gear can create an impact load. Over time, this can easily damage the synchronizer or gears. The impact is less noticeable on flat ground, but the difference is particularly significant on slopes. I've seen many cases of automatic transmission cars rolling backward and hitting walls after starting on steep slopes, all due to not mastering this sequence. The correct operation is to press the brake pedal—shift to D gear—release the handbrake—slowly release the brake to start, maintaining a relay of braking force throughout the entire process.

[SerenityLee]

After driving for so many years, my experience is that you must shift gears before releasing the handbrake. Especially when driving an automatic transmission car parked on a slope, this operation ensures the parking pawl in the transmission bears the force first. If done the other way around—releasing the handbrake first—the vehicle's weight relies entirely on the brake pads, causing a sudden jerk when shifting gears, which wears out the brakes and damages the transmission. The difference is minimal on flat ground, but from a safety habit perspective, standardized operation is essential. Last week, while helping a friend move his car, I noticed he forgot to engage the handbrake on a slope in the neighborhood, nearly rolling into a flower bed—highlighting how crucial stability is when parking and starting. Additionally, in winter when roads are icy, this sequence of operations can reduce the likelihood of tire slippage.

[CodyLynn]

It depends on the situation. The sequence doesn't matter much when starting on flat roads, but it's crucial to shift gears first on slopes. My routine is: after starting the engine, press the brake pedal, move the gear lever to position, then release the electronic parking brake. You'll feel slight engine vibration, indicating power transfer to wheels - release the brake and you're ready to go. For manual transmissions: depress clutch fully, engage first gear, slowly release clutch to biting point (when car vibrates), then release handbrake. Cars with hill-start assist will monitor proper sequence. I've tested older models without this feature - releasing handbrake first on slopes can cause over half a meter of rollback.