Chevy Malibu Service Stabilitrak and Check Engine Light

Stabilitrak systems are incorporated in recent models of vehicles as an advanced stability and traction feature. It is a modern smart way to ensure reliability in the traction control of your vehicle. It works alongside a number of other systems, modules, and sensors for optimal performance. But still, it is likely to fail.

Failure of the Stabilitrack system is often indicated by a Service Stabilitrak message and an illuminated check engine light. The StabiliTrak system is impacted and influenced by the input from other related sensors and systems. Hence, failure of any one of these can result in its failure. These systems include the brakes, sensors, alternator, battery, and ABS module. Proper diagnosis will help you narrow down to the particular component with a fault so that you can resolve the problem. 

This article aims to provide a complete overview of why the Service Stabilitrak and check engine light appear on your dashboard. 

What is the Stabilitrak in the Chevy Malibu?

The Stabilitrak is basically a feature in vehicles that makes use of a number of sensors to ensure that the car is moving in the right direction as intended by the driver. This feature receives input from the steering wheel as well as the wheel sensors and correlates the information with the current direction the vehicle is moving and applies any necessary corrections. When this service fails, which is possible, the check engine warning light appears on your dashboard and you will receive a Service Stabilitrak message.

Besides the warning light and message, there are other ways you can detect a failing Stabilitrak. For one, you are likely to experience some difficulty in shifting and a loss of power. You will also be required to be extra careful when driving through tricky terrain. A quick solution for this is often to reset the system. This can be done by first turning off the engine for a minute or two and then restart the car. This may or may not resolve the issue. If the light reappears, you will need to carry out a proper diagnosis. 

Why is there a Service Stabilitrak and check engine light warning on my Chevy Malibu? 

Several reasons can be attributed to Stabilitrak’s failure. 

Sensors/modules 

Failed sensors are the most common culprits. They tend to either give no output or give erroneous output. This results in an incorrect response from the corresponding module. Sensors can fail due to poor connection, excessive heat exposure, dust, or shock. The StabiliTrak system is dependent on the input relayed by sensors on the different sub-systems such as brakes and steering columns. To locate the faulty sensor would require use of a scanning tool and the necessary action taken. Sometimes, a DIY could do the trick, and on other occasions, a qualified technician can be your best bet. 

Misfiring engines 

If you receive the codes P0301 to P0304, you are dealing with a misfiring engine. The cylinders in the engine can misfire due to worn-out spark plugs or coils. Fixing can be an easy DIY task. 

Faulty alternator and weak battery 

If the alternator is faulty, it will not be able to adequately charge the battery or produce sufficient electrical energy needed by other components such as the ECU. ABS and traction control modules rely on the ECU to function. Hence, if insufficient power is supplied to the ECU, these components will not be able to function optimally. Check the voltage on the car battery several times and record any significant drop. You can also take your vehicle to a professional for further diagnosis. 

Brakes 

Brakes form a vital part of the traction control system. Hence, a faulty brake will not produce the desired effect whenever the Stabilitrak engages them to resist a loss in traction. Faulty brakes can also be diagnosed by an OBD scanner. If confirmed, check the brake fluid levels or inspect the brakes for any faulty parts and have them replaced.  

Failed ABS module 

The StabiliTrak system depends on the ABS to perform its functions. Therefore, a failed ABS module is to blame for the failure of the Stabilitrak. ABS failure can be detected by its OBD codes and the ABS light will also come on. There could be an issue with the module itself, or its sensors. 

Low tire pressure 

If you have low tire pressure, it can cause the car to steer erratically and respond differently against the input from the throttle and steering. Given that the traction relies on input from the speed and steering sensors, any erroneous or flawed information can be recognized as a fault, causing the Service Stabilitrak message. 

FAQs

Conclusion 

The StabiliTrak system plays a very important role in any vehicle. Therefore, it is important that it is always in good working condition. This can be done by ensuring all related components are in tip-top shape.