How to Switch and Use Four-Wheel Drive?

1 Answers
DiEmmett
07/29/25 7:13pm
Switch between the vehicle's two-wheel drive system and four-wheel drive system via the gear lever, including the transition between high-speed four-wheel drive and low-speed four-wheel drive. Alternatively, use the rotary knob to switch, which changes the vehicle's terrain mode, selecting between high-speed four-wheel drive, low-speed four-wheel drive, or the two-wheel drive system.
Was this review help?
11
1
Share
More Forum Discussions

Where is the rearview mirror heating button on the Buick Envision?

Buick Envision does not have a dedicated button for rearview mirror heating. The heating button shares the same switch with the rear window defogger button - press it once to turn on or off. The function of rearview mirrors is to reflect conditions behind, beside, and below the vehicle, expanding the driver's field of vision and reducing safety incidents. Taking the 2021 Buick Envision as an example, its body structure is a 5-door 5-seat SUV with dimensions of: length 4694mm, width 1839mm, height 1686mm, wheelbase 2750mm, fuel tank capacity 66L, and curb weight 1610kg.
9
2
Share

How to Solve the Problem of Car Not Starting in Winter?

Solutions for a car not starting in winter are: 1. Use winter-specific engine oil; 2. Allow the car to run at high speed to expel water from the exhaust pipe. Excessive carbon buildup on the valves can easily clog the throttle, so clean the throttle regularly; 3. Remove the spark plugs, clean the oil stains between the electrodes, then reinstall them and attempt to start the car. Reasons why a car may not start in winter include: 1. Battery failure: Low winter temperatures reduce the battery's capacity, and after prolonged use, the starting voltage may drop; 2. Slower oil flow: Cold temperatures increase the viscosity of engine oil and slow its flow, increasing engine resistance.
14
1
Share

How Many Liters of Transmission Fluid Should Be Added?

The amount of transmission fluid required varies depending on the situation: 1. Manual fluid replacement typically requires four to six liters; 2. Using a fluid exchange machine generally requires nine to twelve liters. The functions of transmission fluid include: keeping the gear system clean, lubricating the transmission components, and extending their lifespan. Signs that indicate the need for transmission fluid replacement are: 1. Vehicle shaking and gear shift hesitation; 2. Transmission overheating warning on the dashboard; 3. Engine stalling; 4. Unusual noises. The consequences of not replacing transmission fluid for an extended period include: 1. Damage to the transmission's shift control mechanism; 2. Abnormal wear on gears and clutch plates inside the transmission; 3. Impaired transmission operation, leading to damage to the transmission valve body.
13
1
Share

Can the original license plate be retained after changing cars?

Can the original license plate be retained after changing cars? It can be retained if the following three conditions are met: 1. Apply in time. The original license plate will be retained for one year after the old car is transferred to someone else or deregistered. During this period, you can apply to the vehicle management office to use the original license plate, and then it can be registered on the newly purchased vehicle. 2. The original license plate must have been used for more than one year. Note that if there are changes in the company's registration information after the vehicle is registered, such as changes in the company, you must wait for one year after the changes are completed before you can use the original license plate when changing cars. 3. All violations and accidents related to the original vehicle must be resolved. If the original vehicle had any road violations or fines, all fines must be paid and there should be no unresolved traffic accidents before you can apply to retain the original license plate number.
6
5
Share

Does Insurance Cover Water-Damaged Vehicles?

If the engine water ingress insurance rider is not purchased, the insurance will not cover the repair costs for engine damage caused by water ingress. If the engine has already been flooded and is restarted, the insurance will not cover the damages regardless of whether the engine water ingress rider was purchased. Below are specific details on what is not covered: If only compulsory traffic insurance is purchased without commercial insurance, the insurance will not cover the repair costs for the vehicle. Before the auto insurance reform, if the non-deductible rider and engine water ingress insurance were not purchased, the payout amount would be reduced, and engine repairs would not be covered. If the vehicle is swept away by a flood, the insurance will temporarily not cover the loss until the missing vehicle is found. If the accident is not reported to the police and the insurance company in a timely manner, resulting in undetermined losses, the insurance will not cover the damages. Other scenarios: During vehicle repairs, for easily worn components such as upholstery and electronic parts, the settlement amount must be negotiated with the claims adjuster, and full compensation is usually not provided. For trucks without the cargo loss rider, goods damaged by floods will not be covered. If the rider is purchased, the cargo list and price-related documents must be provided to assist in loss assessment. For injuries and hospitalization caused by floods while driving, out-of-pocket medical expenses during hospitalization will only be covered if the passenger seat insurance rider is purchased. Many insurance companies offer green channels where out-of-pocket medical expenses and self-paid items during hospitalization can be covered. Otherwise, only the additional medical expenses outside of medical insurance liability rider can provide coverage.
18
5
Share

Is It Normal for a Cold Engine to Shake While a Warm Engine Runs Smoothly?

If the phenomenon of a cold engine shaking while the warm engine runs smoothly occurs during winter vehicle startup, and the shaking is slight—unnoticeable in the driver's seat but observable when the hood is opened—it is considered normal. This happens because, at low temperatures, the idle speed is high after a cold start. The high idle speed leads to increased engine RPM, causing the vehicle to shake. Once the engine warms up and the RPM decreases, the shaking disappears. Causes of cold engine shaking include: 1. Mechanical engine faults, such as uneven cylinder pressure across cylinders; 2. Intake system issues, like intake pipe leaks, excessive carbon buildup on intake valves and pipes, or dirty throttle bodies and intake pipe interiors; 3. Engine management system failures, such as incorrect coolant or intake temperature signals, or wiring faults.
14
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.