
2021 annual vehicle inspection requirements for tires are: tires must not be excessively worn; tire tread patterns must be consistent; all four tires should have matching tread patterns, or at least the front two or rear two should match, but left and right tread patterns must not differ. The functions of tires are: to transmit driving force, braking force, and steering force for vehicle operation; to support vehicle loads; to reduce and absorb vibrations and impacts during driving. Tire methods include: regularly removing stones stuck in tire grooves; minimizing exposure to direct sunlight; promptly checking tire pressure; paying attention to suspension maintenance; regularly inspecting front wheel alignment; adopting careful driving habits by choosing smooth road surfaces and avoiding objects that could puncture or scratch tires, as well as chemical spills that may corrode tires.

During my annual inspection in 2021, the tires were thoroughly checked. According to the regulations at that time, the tread depth had to be at least 1.6 millimeters. Anything below that would require replacement to prevent skidding accidents in rainy conditions. They also checked for cracks, bulges, or deformations—even minor damages like these could lead to a high-speed blowout. The tire pressure had to be just right, neither too high nor too low, as it could affect braking performance. The inspection station used professional tools to measure, but it was recommended to do a simple check beforehand—like inserting a one-yuan coin into the tread. If the edge of the 'Yuan' character was visible, it meant the depth was insufficient. Safety comes first; don’t wait until the inspection to panic. Well-maintained tires make the car run much more smoothly.

I noticed many friends failed their 2021 annual vehicle inspections due to tire issues. The requirements are actually quite clear: tread depth must be sufficient, maintaining a standard of at least 1.6mm; tires cannot have damages like cracks or bulges, which may cause inspection failure. Tire pressure is also crucial - being too high or too low affects driving safety, so regular inflation is necessary. Inspectors will measure the depth with a ruler, and owners can save time by self-checking beforehand - if you feel your tires are wearing out quickly while driving, don't delay. Safety is no trivial matter; annual inspections ensure everyone's safe journey.

There are several mandatory requirements for tires in the 2021 annual inspection: tread depth not less than 1.6 mm, no cracks or bulging damage, and tire pressure meeting the vehicle standards. The inspection will involve precise measurements. If the tread is worn flat, there are cracks on the sidewalls, or bulges are present, the tires will definitely be rejected. I recommend checking the tires one week before the annual inspection, such as using a coin to test the tread depth—if the tread is flush with the coin, it's time to replace them. This can avoid rework and ensure driving safety.

Last year during my annual inspection, the tire section received significant attention. The tread depth must be at least 1.6mm—too shallow increases the risk of skidding. Tire pressure must precisely match the standard value; overinflation can cause unstable handling, while underinflation accelerates wear. Damages like cracks or bulges require repair or replacement. The inspection station checks these points with professional equipment, so owners conducting self-checks beforehand can pass more efficiently—for example, rotating tires for even wear and performing regular to extend lifespan. The essence of safe driving lies in these small details.

I remember taking my car for the annual inspection in 2021, and the tire requirements were very strict. To ensure the safety of my family during trips, the tread depth must not be less than 1.6mm; tires with cracks or bulges are absolutely unacceptable, as they are prone to failure when exposed to rain or high temperatures. The tire pressure was also checked meticulously—too high and it might lead to a blowout, too low and it wastes fuel and poses a danger. The technician used tools to measure everything. I suggest checking the tire pressure before the annual inspection and ensuring even wear. It saves both trouble and money, keeps the car running smoothly, and gives peace of mind.


