
Turn on the right turn signal, slow down and pull over. Press the brake to ensure the vehicle comes to a complete stop, then shift the gear to N (Neutral). Engage the parking brake, shift to P (Park), and then release the foot brake. If parking on a slope, always engage the parking brake after turning off the engine in N gear. Turn off any unnecessary electrical devices in the car. Check that the gear is in P position, all non-essential electrical devices are turned off, and the steering wheel is straightened. Turn the key counterclockwise to the end, or press the one-button start switch to set the ignition switch position to OFF.

I used to drive a Buick Excelle, and the shutdown operation was particularly smooth. After stopping the car, first pull the handbrake to ensure safety, then shift the gear to the P position, and finally press the start button—the engine quiets down instantly. For older models with key ignition, turning the key to the OFF position is also straightforward. Remember to check if the air conditioning and lights are turned off before shutting down to avoid excessive battery load during the next startup. I’ve made it a habit to always take an extra glance at the dashboard. Parking on a slope requires extra caution—shift to P and firmly pull the handbrake to prevent rolling. Buick’s system design is very user-friendly; after shutdown, the car automatically completes all system-closing procedures, making it easy for beginners to handle without worrying about mistakes.

From a technical perspective, shutting off the engine is not just about turning it off, but rather a coordinated process controlled by the system. First, park the car and shift the gear to P (Park), which cuts off power transmission to prevent accidental operation; then press the start button or turn the key, sending a signal to the ECU (Electronic Control Unit), which gradually shuts down the fuel supply and ignition system. Additional safety-related steps: Before shutting off the engine, ensure the tachometer returns to zero, then turn off all electrical devices such as the radio or seat heaters. Buick models perform well in terms of electronic integration, with a quick and efficient engine shutdown process that adapts to various road conditions without requiring additional operations. Regular maintenance and checks of the electrical system can also extend its lifespan.

When I first bought the Buick Regal, I was a bit nervous about the shutdown procedure, afraid of making mistakes that could harm the car. The staff at the 4S store taught me step by step: after parking, shift to P gear and press the button. When the dashboard lights go off after the operation, it means success. It took me a few tries to feel at ease—it’s really simple! When shutting down, make sure the interior temperature is comfortable to avoid overloading the cooling system upon restart. Buick’s keyless start design is very thoughtful; the automatic locking after shutdown is worry-free. If driving a manual transmission or an older model, remember to shift to neutral and turn the key to OFF. Sharing these tips with new owners to help them adapt quickly.


