Why Do Used Cars Only Come with One Key?

1 Answers
Josie
07/30/25 1:18am
If a used car only comes with one key, it indicates that the seller may have something to hide. In such cases, consumers should promptly clarify the reason and request relevant documentation from the seller. Otherwise, it is advisable to exercise caution before purchasing. Below are some considerations when buying a used car: 1. Documentation: Verify the authenticity and completeness of the vehicle's documents. Ensure that the engine number and chassis number on the documents match those on the vehicle. Check if the vehicle can be transferred, whether it has any liens, court seizures, financial disputes, or unresolved violations, and whether the inspection and insurance are up to date. For vehicles registered under a company, confirm if there are any specific local requirements for transfer. 2. Vehicle Condition: Be cautious about purchasing a car in poor condition, no matter how cheap it is. After identifying your ideal model, if your budget allows, opt for a vehicle with a more recent manufacturing year.
Was this review help?
4
3
Share
More Forum Discussions

What Causes the Shaking During Emergency Braking in the Tenth-Generation Civic?

The reasons for shaking during emergency braking in the tenth-generation Civic are: 1. Issues with the braking system; 2. Friction between the wheels and the braking system; 3. Rust formation between the brake discs and brake pads, causing shaking due to rust friction. Taking the 2019 Civic as an example, its body dimensions are: length 4658 mm, width 1800 mm, height 1416 mm, with a wheelbase of 2700 mm. The 2019 Civic is equipped with a 1.0T turbocharged engine, delivering a maximum power of 92 kW and a maximum torque of 173 N·m. It adopts a front-engine, front-wheel-drive layout, with a MacPherson independent front suspension and a multi-link independent rear suspension.
13
4
Share

Are hybrid vehicles eligible for green license plates?

Hybrid vehicles are not eligible for green license plates; they use blue plates instead. The working principle of hybrid electric vehicles is as follows: they combine fuel with electrical energy, where the electric motor delivers strong torque at low speeds to provide power for vehicle acceleration during startup. As the speed increases, the internal combustion engine gradually enhances its power and torque output, supplying the necessary force for mid-to-late-stage acceleration. Types of hybrid electric vehicles include: 1. Micro hybrid; 2. Mild hybrid; 3. Medium hybrid; 4. Full hybrid. Examples of hybrid vehicles include the Toyota Prius, Levin Hybrid, Corolla Hybrid, Camry Hybrid, Kia Niro, and Honda CR-V Hybrid.
11
2
Share

What are the reasons for the engine malfunction light in the Binyue coming on?

The reasons for the engine malfunction light in the Binyue coming on are: 1. Sensor malfunction; 2. Maintenance issues; 3. Poor combustion of the air-fuel mixture; 4. Poor fuel quality; 5. Dirty air filter. The Binyue's body dimensions are: length 4330mm, width 1800mm, height 1609mm, with a wheelbase of 2600mm and a fuel tank capacity of 45 liters. The Binyue is equipped with a 1.4T turbocharged engine and a 6-speed manual transmission, delivering a maximum power of 104 kW and a maximum torque of 235 Nm. It features front-wheel drive, with a MacPherson strut front suspension and a torsion beam rear suspension.
12
1
Share

What does it mean when the AUTOLSD light is on in a car?

When the AUTOLSD light is on in a car, it indicates a malfunction in the vehicle's stability control system. The functions of AUTOLSD are: 1. Precisely controlling the braking process of one or more wheels and distributing the braking force applied to each wheel; 2. The EPS system automatically adjusts the engine's output torque to control the vehicle's speed; 3. Forcing the car to generate a rotational moment around its center of mass, replacing the driver in adjusting the vehicle's direction. The vehicle stability system includes: 1. Electronic Brake-force Distribution (EBD) system; 2. Anti-lock Braking System (ABS); 3. Traction Control System (TCS); 4. Vehicle Dynamic Control (VDC) system. The working principle of the vehicle stability system is: judging the driving state based on sensor signals and using a well-controlled control unit for calculation. When rotation, understeer, or oversteer occurs, it individually controls each wheel to improve vehicle stability.
14
2
Share

What to Do If the Highway ETC Fails to Scan?

The solution for when the highway ETC fails to scan is: promptly contact the toll station staff to manually scan and pay the fee to avoid affecting future usage. Precautions for driving vehicles equipped with ETC include: 1. When passing through the ETC lane, the vehicle speed must not exceed the speed limit of 20 kilometers per hour; 2. Maintain a safe distance from the vehicle in front to prevent rear-end collisions and avoid incorrect transactions. ETC operates through dedicated short-range communication between the vehicle's electronic tag installed on the windshield and the microwave antenna in the ETC lane at the toll station. It utilizes computer networking technology for background settlement processing with banks, enabling vehicles to pass through highway or bridge toll stations without stopping to pay fees.
3
3
Share

What happens when an oxygen sensor fails?

When an oxygen sensor fails, the following symptoms may occur: the vehicle's engine malfunction indicator light turns on, unstable idling, insufficient engine power, sluggish acceleration, and black smoke from the exhaust. The causes of oxygen sensor failure include: 1. Ceramic element of the oxygen sensor cracking; 2. Heater resistance wire burning out; 3. Internal wiring of the oxygen sensor breaking or disconnecting; 4. Engine control unit malfunction. The oxygen sensor uses a ceramic sensing element to measure the oxygen potential in the vehicle's exhaust pipe, calculates the corresponding oxygen concentration based on chemical equilibrium principles, and achieves the purpose of monitoring and controlling the combustion air-fuel ratio to ensure product quality and compliance with exhaust emission standards. It is a critical measurement component.
5
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.