What are front and rear parking radars?

2 Answers
Louise
07/28/25 3:42pm
Front and rear parking radars, commonly referred to as front parking assist, are safety auxiliary devices used during parking or reversing. Functions of front and rear parking radars: They are used to detect obstacles in front of or behind the vehicle when parking or making a U-turn, providing the driver with necessary information such as the distance, direction, and area of the obstacle. They also emit an alarm when approaching an obstacle. Front and rear parking radars offer significant assistance to drivers during parking or when following in congested traffic, helping to avoid unnecessary accidents. Therefore, front and rear parking radars are an important safety auxiliary device. Principle of front and rear parking radars: Parking radars primarily utilize ultrasonic technology. The sensors mounted on the rear bumper of the vehicle send out ultrasonic waves, which reflect off obstacles and are received back by the sensors. This allows the system to calculate the actual distance between the vehicle and the obstacle, which is then relayed to the driver, making parking and reversing easier and safer. Parking radars can provide alerts through three methods: LCD display, voice prompts, or audible tones. The transmission methods include wireless and wired connections.
Was this review help?
19
4
Share
NicoleLee
08/11/25 11:01pm
When I was a new driver, the front and rear parking sensors were truly my lifesaver. These are small devices installed on the front and rear bumpers of the car, using ultrasonic or similar technology to detect the distance to obstacles. When parking too close to a wall or another car, they emit a 'beep' sound to alert me—the faster the beeping, the closer the obstacle. This has saved me from countless embarrassing parking scrapes, especially in tight parking spaces where beginners often make rookie mistakes. The cost of installing this equipment isn't high, but it significantly improves safety. I highly recommend new drivers choose a car with this feature. From my experience, it even makes driving in rainy or foggy conditions more reassuring, providing real-time feedback on spatial awareness and helping develop good parking habits.
Was this review help?
8
1
Share
Expand All
More Forum Discussions

How to Check the Ticket Number?

Methods to check the ticket number are as follows: 1. Through the ticket: If it is an on-site ticket issued by traffic police, you can find the traffic fine number in the second line of the ticket. 2. Through the public service website of the traffic management bureau: Log in to the public service website of the local Public Security Traffic Management Bureau, find the vehicle violation inquiry section, enter the license plate number and vehicle engine number, and click to inquire. 3. Through mobile apps to check violations: Such as the Traffic Management 12123 APP, National Violation Inquiry Assistant, Sohu Violation Inquiry, Che Xing Yi Violation Inquiry, etc. 4. Telephone inquiry: Call 12580 or the local traffic police service hotline to inquire. 5. SMS inquiry: Check violations by sending a text message.
2
0
Share

Can a sedan continuously run 4000 kilometers?

A sedan can continuously run 4000 kilometers. Here are some precautions for long-distance driving: 1. Check the engine: If there are problems with the engine, it will endanger the driver's safety. The fuel system and intake system are the most prone to issues in the engine. Therefore, it is very important to check the engine before a long trip. 2. Fluid inspection: Check various fluids, such as engine oil, transmission fluid, power steering fluid, brake fluid, etc., to ensure that the fluid levels are within the normal range. If the levels are too low, they need to be replenished in time. 3. Check the lights: The role of lights in vehicle driving is very important. Turn signals, low beams, high beams, fog lights, and width indicators each have their own functions, and the lack of any one of them will affect driving safety.
16
2
Share

What to do if the Nissan Qashqai wheel hub is scratched?

Solutions for scratched Nissan Qashqai wheel hub: 1. Clean the wheel hub: Check all scratches, scratch depth, and whether the wheel hub is broken, then clean the wheel hub and dry it with a towel; 2. Paint and oil: Apply putty and then repaint the wheel hub. Before painting, use old newspapers to isolate the edges of the wheel hub to prevent paint from getting on the tire surface. Then, aim the wheel hub paint at the applied putty and spray back and forth a few times; 3. Fill the wheel hub scratches: The scratched area of the wheel hub is rough and must be smoothed with fine sandpaper. Use water sandpaper dipped in water to sand the scratched area repeatedly until smooth, then evenly apply putty.
5
4
Share

What to Do If the Plastic Under an SUV Gets Scratched?

It can be disassembled and replaced. The plastic underneath is the vehicle's anti-scratch device, which effectively protects the vehicle's components in case of minor scratches. Below is some relevant information about SUVs: 1. Models: The world's top SUVs are represented by the American Jeep Grand Cherokee, the British Land Rover Range Rover, and the German Mercedes-Benz G-Class, which have become symbols of the wealthy class. 2. Product Features: SUVs are characterized by strong power, off-road capability, spacious comfort, and excellent cargo and passenger-carrying functions. Some say that SUVs combine the comfort of luxury sedans with the nature of off-road vehicles. SUVs are a hybrid descendant of sedans and off-road vehicles, and compared to their ancestors, SUVs have greater advantages.
14
3
Share

How many kilometers can a sedan tire run before replacement?

Rotating the tires once every 8,000 to 10,000 kilometers can help ensure more even wear. If the vehicle experiences issues such as pulling to one side, a heavy steering wheel, or uneven tire wear on one side, these are signs that the owner should immediately perform a four-wheel alignment adjustment. Generally, tires have a service life of about 5 years or approximately 80,000 kilometers before they need replacement. The longer tires are used, the higher the risk of tread deformation or tire blowouts. To extend the lifespan of the tires, it is recommended to rotate their positions every 10,000 to 20,000 kilometers. Typically, front tires wear out faster than rear tires, so rotating them ensures more uniform wear and prevents situations where the front tires are severely worn and unusable while the rear tires, though with deeper treads, are too old to be used.
13
4
Share

Should the dry dual-clutch transmission be shifted to N gear when waiting at a red light?

If the waiting time is within 30 seconds, it is recommended to stay in D gear and apply the brakes; if the waiting time is between 30 seconds and one minute, shift to N gear and engage the handbrake. Whether to shift to N gear at a red light depends on the waiting time: 1. Waiting time within 30 seconds: If the waiting time is within 30 seconds, it is recommended to stay in D gear and apply the brakes. Since the time is short, shifting back and forth is more troublesome, and frequent shifting operations will increase wear on the clutch and transmission. 2. Waiting time between 30 seconds and one minute: If the waiting time is between 30 seconds and one minute, it is necessary to shift to N gear and engage the handbrake. This operation can disconnect the power transmission, reduce engine load, and decrease fuel consumption.
13
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.