Will an automatic transmission vehicle roll when shifted to P gear?

1 Answers
VanDominic
07/29/25 11:50am
An automatic transmission vehicle will not roll when shifted to P gear. Working principle of P gear: The letter P in P gear stands for park, meaning parking gear. When in P gear, the pawl installed on the transmission housing meshes with the gears inside the transmission, locking all the transmission components, thereby securing the entire vehicle's drivetrain and preventing the car from rolling when the handbrake is forgotten. Correct parking procedure: After the vehicle comes to a complete stop on a level surface, shift the gear from D gear to P gear, then engage the handbrake to complete the parking process, and finally turn off the engine. If you only apply the brakes without shifting to P gear, the vehicle may lose its intended braking capability. The safest and most reliable method is to shift into P gear only after the vehicle has come to a complete stop.
Was this review help?
17
4
Share
More Forum Discussions

What happens if you miss the scheduled Subject 1 test?

If you successfully schedule the Subject 1 test but fail to attend, it will be recorded as an absence. To retake the test, you will need to make a new appointment. Subject 1 test content: Basic knowledge of motor vehicles; laws, regulations, and road traffic signals; fundamentals of safe and civilized driving; basic knowledge related to motor vehicle operation. Subject 1 test procedure: Follow staff instructions to collect your driving school file in order at the waiting area; Bring and present your ID card for inspection by the supervising officer; Mobile phones must be turned off upon entering the test area; No loud talking is permitted in the test area; Regulation textbooks are not allowed in the examination room (or must be kept in your bag); After the test, keep your ID card safely and submit the file to the "Document Submission Window" at the front of the test center; Candidates who pass the test should sign under staff guidance at the exit before leaving; Candidates who fail can leave immediately and await notification from their driving school regarding retake arrangements.
8
4
Share

How many points are deducted for gear mismatch in Subject 3?

Subject 3 gear mismatch deducts 10 points. Subject 3 exam gear and speed usage: first gear at 0-15 km/h, second gear at 15-25 km/h, third gear at 20-35 km/h. As long as the examinee switches between the specified speed and gear, and the gear matches the speed, it is acceptable. Below are specific introductions to car shifting techniques: Downshift after deceleration: Increase the speed before upshifting, and reduce the speed by releasing the throttle before downshifting. Before shifting, the clutch pedal must be fully depressed, and the gear lever should be operated lightly, quickly, gently, and accurately. Master the timing of shifting: Shift when the engine speed is around 2000 RPM. Press the accelerator first and then the clutch, so the clutch won’t be forced to disengage, then shift. Downshift according to the speed. Generally, downshift when the engine speed is below 1500 RPM. The shifting action should be smooth: Depress the clutch fully in one motion, and shift gears in one step. Familiarize yourself with the gear positions. If you encounter difficulty shifting into gear, shift to neutral, release the clutch slightly, and depress the clutch again to shift into gear.
18
5
Share

What is the Automotive Engine Oil Grade Reference Chart?

According to the SAE viscosity grade classification, there are 6 types of winter engine oils (0W, 5W, 10W, 15W, 20W, 25W), 5 types of summer engine oils (20, 30, 40, 50, 60), and 16 types of all-season engine oils (5W20, 5W30, 5W40, 5W50, 10W20, 10W30, 10W40, 10W50, 15W30, 15W40, 15W50, etc.). Introduction: Engine oil, also known as engine lubricant (English name: Engine-oil), with a density of approximately 0.91×10³ (kg/m³), serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption for the engine. It is often referred to as the "blood" of a car. Composition: Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of lubricants, determining their fundamental properties, while additives compensate for and enhance the shortcomings of the base oil, imparting new characteristics. Additives are an essential part of lubricants.
1
2
Share

What is the fuel tank capacity of the 9.5th generation Accord?

65L. Below is additional information: Generally, small cars have a fuel tank capacity of 35-45 liters, while mid-size cars have a fuel tank capacity of around 55-75 liters. A full tank typically allows a driving range of about 500 kilometers. The fuel tank size is designed based on the vehicle's displacement and fuel consumption—larger fuel consumption means a larger tank, and smaller fuel consumption means a smaller tank. Generally, the fuel tank capacity is designed to allow a driving range of 400-600 kilometers. Lighter vehicles with smaller displacements tend to have smaller fuel tanks, while heavier vehicles with larger displacements naturally have larger fuel tanks. However, most full-tank ranges fall between 400-600 kilometers, with the exception of some off-road vehicles. Precautions for using the car fuel tank: It is necessary to clean the fuel tank regularly. When going to a gas station, if you see a gasoline truck unloading, it is best not to refuel at that station and instead go to another one. This is because when gasoline is being unloaded, sediment and impurities in the storage jar may be stirred up, leading to a higher chance of these impurities entering your fuel tank.
1
4
Share

What is the speed limit on a three-lane highway?

On a three-lane highway, the speed limits are as follows: the right lane is for speeds between 60-90 km/h. The three lanes consist of the fast lane, the overtaking lane (for small passenger vehicles) with speeds ranging from 90-120 km/h; the travel lane and the slow lane for large vehicles with speeds between 60-90 km/h, and the left lane for speeds of 110-120 km/h. Pedestrians, non-motorized vehicles, tractors, wheeled special machinery vehicles, articulated buses, full trailers, and other motor vehicles with a maximum design speed of less than 70 km/h are not allowed on highways. The maximum speed indicated by highway speed limit signs must not exceed 120 km/h. When entering the highway from an on-ramp, motor vehicles should use the left turn signal and merge into the travel lane without obstructing the normal flow of traffic already on the highway. Additionally, there is a fourth lane, commonly referred to as the emergency lane. The highway emergency lane is reserved exclusively for emergency vehicles, including police cars, fire trucks, ambulances, and engineering rescue vehicles when performing urgent tasks. Vehicles experiencing sudden breakdowns or passengers with sudden medical emergencies may also use the emergency lane. Other vehicles are prohibited from stopping or driving in the emergency lane under non-emergency circumstances.
6
2
Share

What kind of oil does a generator use?

Generators use diesel or gasoline. Diesel generators: A diesel engine drives the generator to operate, converting the energy of diesel into electrical energy. In the cylinder of the diesel engine, the clean air filtered by the air filter is fully mixed with the high-pressure atomized diesel injected by the fuel injector. Under the compression of the upward-moving piston, the volume decreases, and the temperature rapidly rises to the ignition point of diesel. The diesel is ignited, the mixed gas burns violently, the volume expands rapidly, and the piston is pushed downward, which is called 'work'. Gasoline generators: A gasoline engine drives the generator to operate, converting the energy of gasoline into electrical energy. In the cylinder of the gasoline engine, the mixed gas burns violently, the volume expands rapidly, and the piston is pushed downward to do work. Working principle of generators: Whether it is a diesel generator or a gasoline generator, each cylinder does work in a certain order. The thrust acting on the piston is transformed into the force that drives the crankshaft to rotate through the connecting rod, thereby driving the rotation of the crankshaft. By coaxially installing the brushless synchronous AC generator with the crankshaft of the power machine, the rotation of the power machine can drive the rotor of the generator. Using the principle of 'electromagnetic induction', the generator will output an induced electromotive force, and a current can be generated through the closed load circuit.
17
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.