Why is my traction control light on my Chevy Cruze?

In most cases, the traction control light on a Chevy Cruze signals a fault in the ABS/traction control system or a condition that disables traction control, such as a sensor fault or low tire pressure. It should not be ignored.

This article explains what the light means, common causes, how to diagnose at home, when to seek professional help, and steps to maintain the system. The Cruze uses a combination of sensors and control modules to manage traction and braking in varying road conditions. When the system detects a problem, or if you press the TCS off button, the light may illuminate to alert you, and in some cases the vehicle may switch to a reduced-stability mode.

What the traction control light means

The Cruze’s traction control system works with ABS and stability control to help maintain grip in slick conditions. When the system detects a problem or is turned off, it will illuminate the traction control light and may also trigger the ABS light. A flashing light can indicate the system is actively intervening to regain traction, while a steady light generally signals a fault that needs diagnosis.

Flashing versus steady indicators

A flashing traction control light typically means the system is actively applying brakes or reducing engine power to regain traction. A steady light usually points to a fault in the TCS/ABS system that needs inspection. If the light remains on after you’ve checked basic conditions, treat it as a safety concern and have the vehicle checked promptly.

Common causes

Several issues commonly trigger the light. The following are frequent culprits in Cruze models across generations:

• Low tire pressure or uneven tire wear


• Faulty wheel speed sensor or wiring at one or more wheels



• Worn brake components or low brake fluid


• Electrical issues such as blown fuses or damaged sensor wiring


• Steering angle sensor or ESC (stability control) fault


• Traction control deactivated by the driver (using the TC OFF button) or a temporary system disablement

Because the light can indicate a safety system issue, address promptly. In some cases the light may come on due to a cosmetic wiring issue or a transient fault, but persistent illumination warrants inspection.

What to check at home

If the light comes on, you can start with some quick checks that don’t require specialized tools. Use this checklist to decide whether you can safely drive home or need a tow.

1. Check tire pressures and tread: ensure all four tires are inflated to the recommended levels and look for uneven wear or objects lodged in a tire.


2. Inspect the Traction Control toggle: confirm the TC switch has not been left in the OFF position.


3. Look for other warning lights: ABS, brake, or battery/charging system lights can accompany the traction light and point to a related issue.


4. Scan for diagnostic trouble codes (DTCs) with an OBD-II scanner: read codes that mention ABS/TCS or wheel speed sensors for clues.


5. Inspect wheel speed sensors and wiring: visually check near each wheel hub for corrosion, damage, or loose connectors.


6. Check brake fluid level and condition: low or contaminated fluid can affect braking systems and trigger warnings.


7. Test the electrical system: ensure the battery is strong and the alternator is charging correctly, as weak voltage can affect sensors.


8. If you find nothing obvious, minimize driving and schedule certified service promptly.

A persistent light after these checks should be diagnosed by a technician to avoid potential safety risks on the road.

Diagnostics and professional help

When basic checks don’t resolve the issue, a professional diagnosis is recommended. A certified mechanic or dealer will use specialized tools to pinpoint the problem and determine the safest course of action.

• Retrieve ABS/TC codes with a factory scan tool and interpret P-, C-, or U-coded warnings related to the traction control and ABS systems.


• Inspect wheel speed sensors, tone rings, and wiring for damage, corrosion, or loose connections at each corner.


• Test the ABS pump/active controller for proper operation and any abnormal pressure or response.


• Check the steering angle sensor calibration and alignment, as misalignment can trigger stability-control faults.


• Inspect the brake system: brake fluid level, pad wear, rotor condition, and any leaks or pressure issues.


• Evaluate the vehicle’s electrical system: battery health, charging voltage, grounds, and relevant fuses.


• Look for software updates, recalls, or TSBs (technical service bulletins) that address Cruze ESC/TCS behavior; apply as directed by the dealer.


• Check the VIN for open recalls or service campaigns related to the ABS/TCS components.

Prompt professional diagnosis can prevent safety risks and potential further damage to the drivetrain, braking, or electrical systems.

Safety and maintenance tips

Beyond addressing the immediate light, follow these tips to reduce future problems and keep the traction control system reliable.

• Keep tires properly inflated to the recommended pressure and maintain even tread wear.


• Rotate tires regularly and replace worn tires to preserve grip and sensor accuracy.


• Replace damaged wheel speed sensors or wiring promptly to avoid intermittent faults.


• Keep the brake system in good condition: fix leaks, replace worn pads, and ensure brake fluid is clean and at the correct level.


• Stay current with software updates or recalls related to ABS/TCS as advised by Chevrolet.

Summary

The traction control light on a Chevy Cruze can indicate a range of conditions—from a simple tire-pressure issue to a genuine fault in the ABS/TCS system. Start with basic checks (tire pressure, TC off status, brakes, battery) and use an OBD-II scanner to read codes. If the light persists, have a qualified technician inspect wheel speed sensors, the ABS module, steering angle sensor, and related wiring. Addressing it promptly enhances safety and helps prevent further damage, while staying informed about recalls and service bulletins for your specific Cruze model.

What would cause my traction control light to come on and stay on?

Faulty Wheel Bearings and Hubs: Wheel bearings and hubs play a role in maintaining the stability and control of the auto. If these components wear out or become damaged, they can affect wheel movement and trigger the service traction control light.

Can I still drive if the traction control light is on?

While your car is typically safe to drive with the traction control light on, you should not drive it under certain conditions. If the traction control light, anti-lock braking system light, and red brake-warning light illuminate, your entire braking system may be affected.

What does the traction control light mean on a Chevy Cruze?

The "TC" light on a Chevy Cruze means the Traction Control system is off, either because it was manually disabled or because there's a fault in the system. A steady light indicates a problem, which could be caused by anything from a faulty sensor to a bad battery ground cable, while a flashing light typically means the system is active and working to maintain traction. If the light stays on, it's recommended to have a mechanic read the diagnostic trouble codes to find the specific issue.
 
What a steady "TC" light means

• The system is off: The most direct meaning is that traction control is not active. 
• There is a problem: A steady "TC" light, especially when combined with a "Service StabiliTrak" message, indicates a fault that requires service. 
• Common causes:
  • A malfunctioning wheel speed sensor 
  • A bad battery ground cable 
  • A problem with the valve cover, a bad spark plug, or coil pack 
  • Issues with the steering angle sensor or yaw rate sensor 

What a flashing "TC" light means

• The system is working correctly to prevent wheel slip.
• This is normal behavior when driving on slippery surfaces. 

How to address a steady "TC" light

• Manually check: First, look for the button to turn traction control on or off and press it to see if the light turns off. 
• Drive cautiously: While it's safe to drive, it's best to have it checked, especially if other warning lights like "Service StabiliTrak" or the check engine light are on. 
• Get the codes read: The best way to diagnose the problem is to have a mechanic use a scan tool that can read traction control codes to find the specific faulty component. 

How do I fix the traction control warning light?

To fix a traction control warning light, first check for simple issues like the traction control button being accidentally pressed, low brake fluid, or improper tire pressure. If those are not the cause, a common fix is to clean the wheel speed sensors, which can become dirty after driving in bad conditions. If the problem persists, you may need to have a professional use an OBD2 scanner to read fault codes and diagnose more complex issues like a faulty sensor, steering angle sensor, or a problem with the ABS module.
 
This video demonstrates how to clean wheel speed sensors and check for other common causes of traction control light issues: 1mDashboard warning lights YouTube · May 19, 2025
Simple checks

• Check the traction control button: Ensure the system hasn't been manually turned off. Press the button, which may be labeled "TRAC," "TCS," or show a swerving car icon, to turn it back on. 
• Inspect tires: Make sure all tires are properly inflated and have adequate tread. Improper pressure can trigger the light. 
• Check brake fluid: Low brake fluid can cause the light to come on. If the level is low, there may be a leak, so have it checked. 

Intermediate fixes

• Clean wheel speed sensors: These sensors can become covered in dirt or rust, leading to a false reading.
  • Locate the sensors, which are typically on the wheel hubs and secured by a single bolt.
  • Remove the sensor and clean it of any dirt or debris.
  • Reinstall the sensor and take a test drive to see if the light turns off. 

You can watch this video to see how to locate and clean the wheel speed sensors: 1mAliMECHYouTube · Jun 1, 2024
When to seek professional help

• Use an OBD2 scanner: If cleaning the sensors doesn't work, an OBD2 scanner can read the specific fault codes from the car's computer, which helps pinpoint the problem. 
• Diagnose complex issues: If the scanner indicates a more serious issue, it might be a faulty steering angle sensor, yaw sensor, or ABS control module, which requires a professional diagnosis and repair. 
• Consult a professional: If you are uncomfortable with any of these steps, a mechanic can perform a full diagnostic check and make the necessary repairs. 

This video explains how to use an OBD2 scanner to diagnose the problem and the importance of professional help for complex issues: 56s8020 AutomotiveYouTube · Jul 27, 2025