
When the wrench warning light appears on the dashboard, the car must be taken to a 4S shop for maintenance. Below are the details: 1. The wrench warning light is a maintenance indicator, and its illumination does not indicate a vehicle malfunction: The wrench is merely a maintenance symbol, a very user-friendly design that typically appears during each key-turn self-check. The purpose of the maintenance indicator is to remind the driver to service the vehicle after it has been driven a certain mileage. When the wrench light comes on, it's time to visit a 4S shop for maintenance. 2. The car maintenance light is a reminder function set by the manufacturer for the owner to service the vehicle at certain mileage or time intervals: It appears in the form of a dashboard or screen message or indicator light to remind the owner to perform maintenance. Resetting the maintenance light means clearing the reminder information after maintenance is completed, essentially resetting the information. 3. It is possible to clear the small maintenance symbol on the vehicle with the key turned off: Hold down the 0.0SET button on the lower right side of the dashboard with one hand, then turn the key to the AC position, and finally press the menu button on the left side of the dashboard with the other hand. The wrench warning light on the car will then be successfully cleared.

I've been driving for over a decade, so I'm very familiar with that little wrench icon. It doesn't indicate a fault warning, but rather reminds you that the maintenance cycle is due. Manufacturers preset maintenance reminder intervals for different models, which may be based on mileage or time. Last time the wrench light came on in my car, I was on the highway and still drove 300 kilometers before getting the service done at the dealership. However, I wouldn't recommend following my example and delaying maintenance, as engine oil performance gradually deteriorates—especially for vehicles that frequently take long trips. Nowadays, many brand dealerships support maintenance service appointments via mobile apps, so it's completely feasible to schedule an appointment a few days in advance after the light comes on.

The wrench light indicates the activation of the vehicle's built-in maintenance reminder function, which works similarly to a pop-up notification on your phone. While it's not an emergency that requires immediate attention today or the car will break down tomorrow, I recommend scheduling maintenance within two weeks. It largely depends on your driving intensity. For someone like me who commutes 60 kilometers daily, the engine runs continuously for long periods, causing faster oil degradation. Every extra day after the light comes on feels like a strain on the engine. Last week, my neighbor ignored the wrench light for two months, and when the engine was opened, it was full of sludge. Nowadays, newer models even display specific maintenance items on the infotainment screen, making it easier to compare prices and choose a service provider in advance.

The wrench icon on the dashboard indicates it's time for maintenance. Last time this light came on in my car, it turned out to be a false alarm caused by the system not being reset after the previous service. Modern vehicles are quite intelligent - their maintenance intervals are calculated by the computer based on engine operating conditions, and they're generally accurate. If the light comes on shortly after a service, you may need to manually reset the reminder system. However, if it's triggered by the mileage, it's best to schedule maintenance promptly, especially for turbocharged vehicles which have higher oil requirements. Before winter driving, check your engine oil condition - if it appears black, change it immediately.

A veteran driver who has owned three cars tells you, don't panic when the wrench light comes on, but don't ignore it completely. This is your car's computer reminding you that you've driven the specified mileage since the last maintenance, and it's time for a comprehensive check. Different brands have different settings—my American car reminds me at 5,000 kilometers, while the German one does so at 7,500. Delaying too long can affect engine lifespan, as decreased oil viscosity increases piston ring wear. I usually schedule maintenance about ten days after the light comes on, taking the opportunity to have the mechanic check brake pad thickness and tire wear patterns. In summer, especially during hot weather, pay extra attention to replacing the cabin air filter.


