Chevy Malibu Service ESC Car won’t Start (Quick Solved)

The Chevy Malibu is a reliable and comfortable mid-size SUV in the market. It comes equipped with a number of new technologies to improve its performance as well as safety. One important safety technology feature present in the new models is the ESC technology. This feature comes in handy in difficult road conditions that can cause the driver to lose control. However, what does it mean when the dashboard warning light illuminates “Service ESC”?

The service ESC indicates an issue with the electronic stability control of the vehicle. This can be due to faulty wheel speed sensors, faulty steering angle sensors, wiring/electrical issues, or the system is simply deactivated. The system works alongside other systems and modules in the car, hence failure of one can affect it and the car’s performance as a whole. 

This article aims to highlight some reasons why the Service ESC light comes on and how to fix the underlying issues. 

What is ESC in Chevy Malibu? 

The ESC, Electronic Stability Control system is a vital safety feature that assists drivers in maintaining control during the challenging driving conditions. At times, it may use the brakes to keep the car from losing control even when the driver does.

The primary function of the system is to keep the car under control regardless of the circumstances– the system involves computer-controlled braking on the wheels so the driver can retain control in vital cases. It is designed to either operate on its own, or with help from the differential brake control, traction control systems, brake assist, and tire pressure monitoring systems. 

How does ESC Work? 

In the Chevy Malibu, the ESC will be activated when the vehicle is started. It tends to adopt the position sensors of the steering wheel and compares it with the steering of the car. Once these sensors detect any loss of control or traction in the car, the system will automatically adjust the oversteer and understeer and the brakes or engine torque to ensure that the driver stays in control. Moreover, the system eases the wheel’s brakes to the intended route. The system is also responsible for managing the traction control and engine power to reduce speed in case of over-acceleration. 

What causes the Service ESC light to come on?

There are four main reasons that can trigger the Service ESC light to illuminate on your Chevy Malibu. 

Defective wheel speed sensors

Often, issues with the ESC system stem from faulty wheel speed sensors. These sensors play a vital role in relaying signals to the system. It is through them that the stability control can monitor wheel speeds. With the signals from the sensors, the system can make necessary brake adjustments to guarantee a steady ride. If these sensors are malfunctioning, the ESC is affected. 

Faulty steering angle sensor

Another culprit is the steering angle sensor. This sensor works in conjunction with the wheels to ensure that they turn in the proper direction at the right pace. Usually, the outside wheels spin quicker than the inside ones. Hence, it is the work of the steering angle to inform the powertrain control module what is happening. Otherwise, the built-in computer in the car can conclude that one side of the wheel is losing traction when the other side is in operation. 

Wiring or electrical issues 

In case of any electrical difficulties in the sensors and powertrain control module, the Service ESC light will come on. This is a common occurrence in the event of a short wire on the wheel speed sensor. 

The ESC system is deactivated 

Most car models allow you to turn on and off the ESC system. Still, to be on the safe side, you are advised to keep it on. This will keep you from drifting. It is important to note that deactivating the system will cause the light to come on.  

How to Fix Service ESC on the Chevy Malibu?

There are a number of tips you can apply to fix the ESC issue on the Chevy Malibu. 

Turn on the ESC system 

One easy way to fix the Service ESC light is to turn it on. Check to see whether your vehicle model gives you an option to turn it on or if the system is off. It could be that you accidentally pressed the button or the acts of a child. 

Inspect any other lights on the dashboard

Look around the dashboard for any other lights. It is likely that the ESC light has been triggered by other unnecessary lights. This is common but also easy to detect. 

Change faulty wheel speed sensors 

You can diagnose poor wheel speed sensors if both the ESC warning light and speed sensor lights come on. Have this component inspected and make any necessary repairs or replacements. 

Adjust steering angle 

If the steering angle is misaligned, your Chevy Malibu will prompt the service ESC light to illuminate. If you notice that the tires are not straight with the steering wheel in the center, the steering angle is offset. You are required to change it to resolve the problem. 

Examine the fuses 

As strange as it may seem, this could be the way to go. You may find that all the related fuses are in good condition, but they just need reinstallation to eliminate the ESC light on your dashboard. 

Seek professional help 

When all else seems to fail, or you are skeptical about the diagnosis or repair, you can always contact a professional. They are skilled in providing the necessary fixes. Also, serious matters are best handled professionally. 

FAQs 

Conclusion 

Technological advancements in vehicles are great, but issues on the same can be very unsettling, especially if you cannot detect the root cause of the issue. Still, the electronic stability control is worth fighting for, regardless of all its issues. Safety should always be a top priority for any driver.