What to Do If an Automatic Transmission Car Rolls Back on a Slope?

Can a Dash Cam Record When the Car is Off?

Generally, the power supply to the dash cam is cut off after the car is turned off, so the dash cam will not operate when the car is not running. Here are the main functions of a dash cam: 1. After installing a dash cam, it can record video and audio of the entire driving process, which can serve as evidence in traffic accidents. 2. For those who enjoy road trips, it can also be used to document the journey through challenging terrains. 3. While driving, it continuously records the journey, capturing time, speed, and location data in the video, functioning much like a "black box." 4. It can also be used at home as a DV camera to record life's moments or serve as a home surveillance device. 5. Additionally, it can be used for parking surveillance. The video footage from the dash cam should not be edited; if altered, it may not be useful in the event of an accident. This also helps prevent unavoidable fraudulent claims in today's society.

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Do I Need to Press the Brake When Shifting from D to N?

Yes, shifting between P, R, and D gears requires pressing the brake. Below are detailed introductions to various car gears: 1. P gear is the parking gear: When the gear lever is in the P position, the transmission is in neutral internally, but the output shaft is mechanically locked. At this time, the car will stop in place even without pressing the brake, and it is generally used for long-term parking. When engaging the P gear, the car must be completely stationary. Do not engage the P gear before the car has come to a complete stop, and always apply the handbrake. When parking on a slope, first apply the handbrake and then engage the P gear. 2. R gear is the reverse gear: When the gear lever is in the R position, the rotation direction of the transmission's output shaft is opposite to that of the engine, allowing the car to move backward. When engaging the R gear, the car must be completely stationary. Do not engage the R gear before the car has come to a complete stop. 3. N gear is the neutral gear: When the gear lever is in the N position, the gears inside the transmission are idling, and the clutch is not engaged, resulting in the minimum load on the transmission. The N gear is generally used for short-term parking. Additionally, when towing the car, the transmission should be in the N gear. 4. D gear is the drive gear: When the gear lever is in the D position, the gears inside the transmission automatically switch between the lowest and highest gears based on factors such as vehicle speed and throttle opening, according to the preset shifting rules. In the vast majority of cases, the D gear can be used for driving.

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How to Convert Tire Pressure?

Tire pressure is generally measured in five units: kg/cm2, bar, Kpa, Psi, and atmospheric pressure. The conversion relationships between them are: 1kg/cm2=0.98bar=98.0665Kpa=14.2Psi, and 1 atmospheric pressure=1.03327kg/cm2. Hazards of excessive tire pressure: The friction and adhesion of the tire will decrease, affecting braking performance; It can cause steering wheel vibration and deviation, reducing driving comfort; It accelerates localized wear of the tread pattern in the center of the tire, shortening the tire's lifespan; Increased body vibration indirectly affects the lifespan of other components; Excessive tension on the tire cords can lead to reduced elasticity of the tire body, increasing the load on the vehicle while driving; Reduced puncture resistance. When encountering sharp objects like nails or glass on the road, the tire is more easily punctured, and impacts can cause internal cracks and blowouts, leading to tire bursts. Hazards of insufficient tire pressure: Increased friction coefficient with the road surface, leading to higher fuel consumption; Results in a heavy steering wheel and deviation, creating unsafe driving conditions; Increases the movement of various parts of the tire, causing abnormal heat due to excessive rolling; Reduces the functionality of the cords and rubber, leading to delamination or cord breakage, and excessive friction with the rim causing damage and abnormal wear at the bead area; Doubles the friction between the tire and the ground, rapidly increasing tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may result in tire bursts; Increases tire body deformation, making the tire sidewalls prone to cracks and generating flexing movements, leading to excessive heat, rubber aging, cord fatigue, and breakage. It also increases the tire's contact area with the ground, accelerating shoulder wear.

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Can Vehicle Inspection Be Conducted During the National Day Holiday?

Vehicle inspection cannot be conducted during the National Day holiday, and no procedures can be processed during the holiday period. Documents Required for Vehicle Inspection at the DMV: Original and copy of vehicle tax, ID card of the vehicle owner or agent, vehicle registration certificate, vehicle insurance documents, and an out-of-town inspection application (if applicable). Regulations on Vehicle Inspection Time: The vehicle inspection time is determined based on the initial registration date of the new vehicle. For example, if the registration date on the vehicle's driving license is June 2015, then the vehicle inspection time is every June. According to the newly revised "Motor Vehicle Registration Regulations" Article 40, the vehicle owner can apply for the inspection compliance mark at the local vehicle management office within three months before the expiration of the vehicle inspection validity period. This means that vehicles scheduled for inspection in June can undergo the inspection in April, May, or June.

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Is it allowed to change lanes over a solid line on the highway?

On highways, it is not allowed to change lanes over a white solid line. Prohibited markings: Violating the prohibition of marking instructions refers to driving against the prohibited markings, which include yellow solid lines on the ground (indicating no crossing of the central divider) and yellow crosses (indicating no parking). Driving over these markings constitutes a violation, such as changing lanes over a solid line, making a U-turn where it is not allowed, or turning left where left turns are prohibited—all of which are considered violations of prohibited marking instructions. Single or double yellow solid lines: Both are types of prohibited markings. Driving over or crossing these lines during travel is illegal. Additionally, not following the guiding markings in the corresponding lane at intersections also falls under the broader concept of the aforementioned regulations.

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How Many Years Until a Test Drive Vehicle is Scrapped?

Small passenger vehicles used for training purposes have a scrappage period of 10 years. Mandatory vehicle scrappage periods: Small and mini taxi passenger vehicles are used for 8 years, medium-sized taxi passenger vehicles for 10 years, large taxi passenger vehicles for 12 years, rental passenger vehicles for 15 years, small training passenger vehicles for 10 years, medium-sized training passenger vehicles for 12 years, large training passenger vehicles for 15 years, public transport passenger vehicles for 13 years, other small and mini operational passenger vehicles for 10 years, and large and medium-sized operational passenger vehicles for 15 years, etc. Standards for mandatory vehicle scrappage: Reaching the legally prescribed service life, failing to meet the national technical safety standards for in-use vehicles after repairs and adjustments, or still not meeting national standards for atmospheric pollutant emissions or noise levels after repairs, adjustments, or the application of control technologies.

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What to Do If an Automatic Transmission Car Rolls Back on a Slope?

Can a Dash Cam Record When the Car is Off?

Do I Need to Press the Brake When Shifting from D to N?

How to Convert Tire Pressure?

Can Vehicle Inspection Be Conducted During the National Day Holiday?

Is it allowed to change lanes over a solid line on the highway?

How Many Years Until a Test Drive Vehicle is Scrapped?

How long after passing the C1 subject 1 test can you take the subject 2 test?

Replacement Interval for Automotive Urea Filter

How Long Do Leather-Wrapped Car Seats Last?

What to Do If a Mouse Gets into the Car?