Will an Automatic Car Roll Without the Handbrake On?

1 Answers
McJasmine
07/30/25 5:47am
An automatic car will not roll after being turned off and shifted into P gear, provided the vehicle is parked on a flat surface. This is because the P gear in an automatic transmission is a locking gear. Additional details are as follows: 1. On a slope: If the slope is steep, the force generated by the vehicle's own gravity may exceed the locking force, causing the vehicle to roll. Therefore, it is recommended to engage the handbrake after shifting into P gear in an automatic car. 2. P gear: This is a special neutral gear that mechanically locks part of the transmission output shaft to secure the vehicle. Its function is to act as a brake after parking, preventing the vehicle from moving. For practical safety reasons, car manufacturers place the P gear in the first position on the gear shift console and set internal mechanisms to ensure that the car key can only be removed when the gear shift lever is moved to the P gear position. Thus, the P gear is specifically designed for long-term parking in automatic cars.
Was this review help?
4
4
Share
More Forum Discussions

Will the probationary period of the driver's license be extended if points are deducted?

C-class driver's license will not have its probationary period extended for point deductions during the probationary period. For A and B-class driver's licenses, if 6 points (but less than 12 points) are accumulated during the probationary period, the probationary period will be extended by one year. If another 6 points (but less than 12 points) are accumulated during the extended probationary period, the probationary driving model will be revoked. If the probationary driving model is not the highest permitted driving model, then the highest permitted driving model will be revoked. Precautions during the probationary period: During the probationary period, you cannot drive alone on highways. Driving on highways requires the accompaniment of a driver with the same or higher class of driver's license and more than 3 years of driving experience, otherwise a fine ranging from 20 to 200 yuan will be imposed. During the probationary period, a probationary sign must be displayed when driving on the road. The probationary sign must be issued by the traffic management department and posted on the inside of the rear windshield of the car; if it is a magnetic probationary sign, it should be posted on the rear exterior of the car; otherwise, a fine ranging from 20 to 200 yuan will be imposed.
4
2
Share

What is the emission standard for vehicles produced in 2013?

Most vehicles produced in 2013 comply with the China IV emission standard, while some imported models meet the China V standard. For trucks, the majority adhere to China III, with a minority meeting China IV. The China IV standard, titled 'Limits and Measurement Methods for Emissions from Light-duty Vehicles (China III, IV Stages)', is partially equivalent to Euro IV and was implemented in 2010. China's vehicle emission standards have progressed step by step: On July 1, 2004, the China II emission standard was implemented nationwide. On December 30, 2005, Beijing adopted the China III standard, allowing vehicles already on the market meeting China III to delay OBD installation for one year. July 1, 2007, saw the nationwide implementation of China IV. On January 1, 2008, China IV fuel became available in Beijing. By July 1, 2013, 19 regions including Beijing, Shanghai, Guangzhou, Shenzhen, Nanjing, Urumqi, and Lanzhou strictly enforced China IV. Starting January 1, 2014, China IV became fully mandatory nationwide. The China III and IV standards refer to Euro III and China IV vehicle emission standards respectively. Compared with China II, China III further reduced pollutant emission limits.
15
0
Share

What is the difference between Pearl White and Universal White?

The differences between Pearl White and Universal White are as follows: 1. Material: The white paint is a solid color paint, which cannot be made into metallic paint due to its natural properties and does not emit fluorescent powder under sunlight. On the other hand, Pearl White paint contains pearl powder, making it appear brighter and more premium under sunlight compared to regular paint. 2. Cost: Pearl powder is much more expensive than regular paint, and combined with the manufacturing process, it generally costs more than white car paint. Below is some relevant information: 1. Mica: Pearl White is created by adding a layer of pearl paint between the base coat and clear coat, with its main component being mica. Mica is a dioctahedral calcium layered silicate mineral, often found in aluminum-rich deposits, and is recognized as a standard metamorphic rock-forming mineral from low to medium-grade metamorphic rocks. 2. Touch-up effect: If Pearl White gets scratched, touch-up painting may result in color differences due to the paint's characteristics. After touch-up, it is almost impossible to align the mica particles uniformly, and even slight differences in direction and color can be easily noticed.
12
4
Share

What is the app called for the Audi Q3 dash cam?

The Audi Q3 does not come with a built-in dash cam by default. Here is some relevant information: 1. Dash Cam: The Q3 does not have a factory-installed dash cam, so you will need to consult the seller you purchased it from for instructions on how to use it or refer to the user manual. A dash cam is a device that records video and audio data during vehicle travel. Once installed, it can record the entire driving process, providing evidence in case of traffic accidents. 2. Overview: The FAW-Volkswagen Audi Q3 is a compact SUV that features a MacPherson strut front suspension and a four-link independent rear suspension, with a ground clearance (minimum) of 170mm.
11
3
Share

How Many Years Can Automotive Paint Last?

Generally, it can last for 5-6 years. Below is relevant information on automotive paint maintenance: 1. Cars do not require frequent repainting. If there are many minor scratches on the body, polishing can be done, which is quick and inexpensive; if the paint damage is significant, then repainting is necessary, which takes longer and is more costly. 2. For the first wash of a new car, it is best to go to an indoor dust-free manual car wash or a well-maintained car wash facility. Some contaminants are not visible to the naked eye, such as tree sap, alkali, acid, and other chemical pollutants, which should be thoroughly removed. Simple detergents cannot remove these contaminants; specialized cleaning clay must be used to wipe them off bit by bit. 3. New cars should not be waxed indiscriminately, as the paint layer of a new car already has a protective wax coating. Waxing too early can remove the original wax on the new car's surface, leading to unnecessary waste. Generally, there is no need to rush to wax a new car within the first three months of purchase. The primary function of waxing is waterproofing and protection against acid rain; car wax reduces the amount of water droplets adhering to the body. Secondly, it protects against high temperatures and UV rays, as the film formed by waxing can reflect some light, effectively preventing paint aging. Additionally, car wax can prevent static electricity and, of course, also prevent dust.
16
2
Share

How to Properly Reinsert the Oil Dipstick?

The oil dipstick is usually located next to the engine, either on top or on the side. It has a distinct feature—a pull ring—making it easy to identify. To use it, pull out the dipstick with a towel, wipe it clean, and then reinsert it fully into the dipstick slot in the engine. Here are the correct methods for using the oil dipstick in a stationary state: 1. Always check the correct oil level on the dipstick. Do not rely on just one side; inspect both sides and use the lower reading as the accurate level. If unsure, wipe the dipstick clean and check again, as oil clinging to the tube walls can create a false reading. 2. Under normal conditions, remain vigilant and check the dipstick once or twice a day. 3. In abnormal situations, such as reduced engine sealing performance, increased oil consumption, or internal/external leaks that haven’t been addressed, check more frequently. Top up if oil is low—oil in the engine is as vital as blood in the human body and should never be neglected. 4. After any malfunction, such as internal damage, promptly inspect the dipstick. 5. When checking the dipstick, monitor both the quantity and quality of the oil. 6. Be alert for dipstick malfunctions: the most common issues are the dipstick sinking or rising unexpectedly.
18
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.