Wheel speed sensors are the number one reason that the StabiliTrak system fails. Wheel Speed Sensor A typical wheel speed sensor Check out the video above for how to test and replace it. The EGR valve somehow causes the Service StabiliTrak warning in older Equinox models. A good scanner should tell you which system has failed and is worth its weight in gold if you’re trying to fix your Equinox’s StabiliTrak system. Many things can cause the StabiliTrak system to lose its ability to function, but the most common one is a wheel speed sensor. You may get a “service traction control” message and the “Service StabiliTrak” warning simultaneously.Ĭhevy Equinox: Service StabiliTrak Light Causes Unlike StabiliTrak, which controls lateral issues (sliding), traction control keeps the wheels from unnecessary spinning. Traction Control Not Working: Your Equinox’s traction control system primarily uses the same sensors to determine if a wheel has broken traction.Cruise Control: If one of the wheel speed sensors is not working correctly, your Equinox may lose cruise control.Service StabiliTrak Warning: Your Equinox’s “Service StabiliTrak” warning light is the number one indication that something is wrong.Most of the time, you’ll feel it when it engages. It only activates when it detects that your Equinox is not moving in the direction you steered or if it detects that a skid has been overcorrected. Loss of StabiliTrak assistance is not going to be noticed during everyday driving. Service StabiliTrak Symptoms: Chevy Equinox Here’s a video from GM that shows precisely how the system works. The StabiliTrak control unit uses data from its sensors to apply a specific brake or reduce the engine power to correct the slide and get your Equinox pointed back in the right direction.įor example, if your Equinox is sliding on ice, StabiliTrak can apply one of the rear brakes to help get you pointed in the right direction. Hydraulic System– Can activate one brake at a time. It can also tell the powertrain control module to cut engine power if needed. Control Unit– Takes the data from the three sensors listed above and determines when to activate the StabiliTrak system.Steering wheel position sensor– Measures how many degrees the steering wheel has been turned.Rotation rate sensor– Measures lateral speed and rotation around the vehicle’s centerline.Wheel speed sensors– They measure how fast each particular wheel is turning.Stabilitrak uses a complex system of sensors to detect whether or not your Chevy Equinox is appropriately responding to your input in emergencies. The number one reason that the StabiliTrak system fails is a wheel speed sensor issue. If you have a service StabiliTrak message, your vehicle will no longer be assisted when a loss in lateral traction is detected. It is one of the most innovative and vital safety features on your Chevy Equinox and can keep you from crashing when skidding. It does much more than a standard traction control system. StabiliTrak is GM’s electronic stability control system. The Equinox is perhaps the most common vehicle that gets the Service StabiliTrak warning. One of the most common issues with the Chevy Equinox, or any newer GM vehicle, is the “Service StabiliTrak” warning.
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