What are the regulations for using hazard warning lights?

2 Answers
DeKayden
07/25/25 1:00am
Hazard warning lights, also known as emergency flashers, serve as a signal to alert other vehicles and pedestrians that the vehicle is experiencing a special situation. The regulations for their use are as follows: 1. When driving in foggy conditions: Visibility is reduced in fog, and hazard warning lights should be turned on. 2. In case of vehicle breakdown or traffic accident on the road: Hazard warning lights should be activated to alert approaching vehicles and pedestrians for safety and to prevent further incidents. 3. When driving on highways: Hazard warning lights must be turned on under low visibility conditions such as fog, rain, snow, dust, or hail, especially when visibility is less than 100 meters. 4. Penalty regulations: Motor vehicles are not allowed to use hazard warning lights arbitrarily while driving on the road.
Was this review help?
17
5
Share
MacKiara
08/10/25 3:58pm
After driving for so many years, I have extensive experience with hazard lights. According to regulations, hazard lights must be turned on when temporarily parking by the roadside to run errands or pick someone up, even if it's just for two or three minutes—never skip it. In case of an emergency breakdown, place a warning triangle 150 meters behind the vehicle while keeping the hazard lights on. Both the towing and towed vehicles must have their hazard lights activated during towing, something many people forget. On highways during heavy rain or fog with visibility under 100 meters, hazard lights are also mandatory—just last week during a downpour, my hazard lights helped the car behind me slow down in time. However, the most overlooked scenario is convoy driving: wedding processions or group activities must keep their hazard lights on to maintain formation, or they’ll bear full responsibility in case of a rear-end collision. Using hazard lights while waiting at a red light is also a violation, something new drivers especially need to watch out for.
Was this review help?
5
5
Share
Expand All
More Forum Discussions

How to Purchase Vehicle Damage Insurance?

You can purchase it through the official website of the insurance company. You can also buy it directly at the 4S store where you purchase the car. Insurance companies that offer vehicle insurance include Ping An Insurance, PICC, and Dadi Insurance, among others.
8
5
Share

What are the steps for cylinder measurement?

Cylinder measurement steps: 1. First clean the cylinder bore and adjust the dial indicator to the nominal size of the cylinder bore; 2. Measure six bore dimensions longitudinally and transversely at the upper, middle, and lower positions respectively; 3. The dimension with the largest deviation from the nominal size is considered as the maximum worn bore dimension after wear. Compare this value with the maximum tolerance of the bore diameter to determine the wear amount. Notes: 1. In the industry, cylinder wear refers to the diameter difference; 2. Select the maximum difference regardless of piston movement direction. A cylinder is a cylindrical metal component that guides the piston to perform linear reciprocating motion. In engine cylinders, air converts thermal energy into mechanical energy through expansion, while in compressor cylinders, gas receives piston compression to increase pressure.
3
1
Share

How to Handle Driving School Refunds?

If the applicant voluntarily gives up applying for a driver's license, the applicant should go to the local vehicle management office, fill out the 'Motor Vehicle Driver's License Business Withdrawal Application Form'. After review and confirmation of compliance with regulations, the acceptance counter at the municipal vehicle management office will retain the original application form and a copy of the relevant identity documents, and then proceed with the withdrawal.
12
5
Share

How to Operate During Oncoming Traffic in Subject Three?

Need to observe the oncoming vehicle's type and speed, while also assessing the width of the road ahead and any roadside obstacles to prepare for the encounter. Need to estimate the positions and distance between the two vehicles during the encounter by observing from inside the car, maintaining a safe lateral gap while driving. Need to reduce speed, especially when approaching the meeting point, to ensure smooth passage of both vehicles.
8
2
Share

How to Maintain a Steady Speed in Subject 2 for Automatic Transmission Vehicles?

Since automatic transmission vehicles do not have a clutch, they are almost impossible to stall, and the speed can be controlled using the brake pedal. If the idle speed of an automatic transmission vehicle is insufficient for climbing a slope, you can lightly press and hold the accelerator to control the speed. Of course, some automatic transmission vehicles come with a hill-start assist function.
4
2
Share

What to Do When Your Car Gets Scratched in the Residential Area?

First, check the dashcam footage. Ask passersby or the on-duty personnel in the residential area if they noticed any suspicious vehicles. Take comprehensive photos of the damaged areas at the accident scene, do not move the vehicle, and then call your insurance company to have an adjuster come and assess the damage.
2
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.