What is the oil change light? Why does it light up? Does it affect your driving? How do you reset the oil light? How do you use an Autel scanner? We've already answered these questions in a previous article.
Unlike the previous overview of resetting the oil light using an Autel scanner, which generally applies to general scenarios but may vary slightly depending on the Autel scanner model, today we'll detail how to reset the oil light using the Autel MX900 scanner, a popular model on our website. Let's take a look.
Motor oil plays a vital role in protecting your engine. It lubricates internal components, minimizes friction, and reduces wear, helping to extend the life of your engine. However, it also has the risk of deterioration. Here are some reasons why you need to reset your oil:
An oil reset is required when the oil deteriorates.
This is the most standard scenario. After an oil change, if you don't reset it, the vehicle's ECU will continue to calculate the oil life based on the old oil life, and will soon remind you to "change the oil."
Some cars don't check the oil quality, but simply remind you based on mileage or time, such as every 5,000 kilometers or every six months. A reset is required after maintenance is completed.
Sometimes, due to poor driving conditions (many short trips, cold cars, or heavy traffic), the system may illuminate the oil light prematurely. A reset is still required after an oil change.
If you use a car diagnostic tool (such as an Autel scanner) to perform a service reset, the oil life data will automatically be reset to zero, which is also a reset.
The previous owner may not have reset the oil light. To avoid false positives, you need to reset it and establish your own maintenance schedule.
The oil light needs to be reset after an oil change.
The Autel MaxiCheck MX900 is an eight-inch touchscreen auto diagnostic scan tool powered by a fast quad-core processor and running the Android 11 operating system. The Autel MX900 underwent hardware and software upgrades in 2025 and supports over 40 service functions, including proactive testing and full-system, factory-level diagnostics.
The Autel MX900 does not have a slave unit and cannot connect to the vehicle via Bluetooth or Wi-Fi. Therefore, you need to use the Main cable in the accessories list to connect the Autel MX900 to the vehicle via the OBD II port to establish communication with the vehicle.
Once you've established communication with your car, there are two ways to find the Oil Reset feature.
One is to go to the Service section, which generally displays all the features available for different vehicles, making it easy to find the Oil Reset feature. Alternatively, select the Diagnostics section and find the Oil Reset feature under Hot Function, which is available for your vehicle.
The following are the paths for the two methods:
This step includes confirming the vehicle brand and year. Because the Autel MX900 has automatic VIN and automatic scanning functions, you can quickly confirm vehicle-related information without having to manually select and enter the VIN. However, the specific operation may vary slightly depending on the vehicle brand.
The first path guidance.
After finding Oil Rest, click to enter, select Auto oil reset for subsequent operations, and follow the on-screen prompts until the operation is completed.
After all operations are completed, check whether the reset is successful through the dashboard. There are usually two manifestations:
After resetting the oil, the dashboard shows that the oil life is 100%.
Resetting the oil light using the Autel MX900 scanner is very simple, and the entire process may only take a few minutes.
This not only greatly saves you the time and money wasted on driving your car to a repair shop or dealer-designated service center, but you can also use the Autel MX900 to perform some simple diagnostic and repair work, which is very friendly to those who like DIY.
The Autel MX900 provides you with superior special functions, including Oil Reset, EPB (Electronic Parking Brake), SAS (Steering Angle Sensor), BMS (Battery Management System), DPF (Diesel Particulate Filter), IMMO, and TPMS (Tire Pressure Monitoring System).
Yes.After changing the engine oil, the oil maintenance light will usually light up. At this time, the oil life needs to be reset so that the system can accurately prompt the next oil change time.
Most car manufacturers in the U.S. recommend an oil change every 5,000 to 7,500 miles, or every 6 months—whichever comes first. But the best interval depends on your driving habits, the type of engine you have, and what kind of oil you use.
Yes. Using an Autel scanner or other OBD II scanner that supports oil reset services, you can easily perform an oil light reset yourself.
Yes, on most models, you can reset the oil light manually in addition to using a car diagnostic tool. The operation method varies greatly between different brands and models. Please refer to the vehicle owner's manual for specific steps. If manual operation is ineffective, consider using a professional diagnostic tool (such as Autel Scanner).
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