Why is my traction control light on my Chevy Equinox?
The traction control light on a Chevy Equinox usually means the stability/traction system has detected wheel slip or is experiencing a fault in the ABS/traction circuitry. It should be diagnosed rather than ignored, since it can affect braking and handling.
What the light means
The StabiliTrak/traction control system uses wheel speed sensors and ABS data to prevent skidding. A steady light typically signals a fault requiring diagnosis, while a flashing light indicates the system is actively helping to limit wheel spin in slippery conditions. In either case, treat it as a potential safety issue and investigate promptly.
Common causes
The following list covers the most frequent reasons the traction control light appears on a Chevy Equinox. It helps you prioritize where to look first.
- Low tire pressure or uneven tire wear
- Wheel speed sensor or ABS sensor fault
- Damaged or dirty wheel speed reluctor rings
- Brake system issue (low brake fluid, worn pads, hydraulic leak)
- Faulty brake light switch or wiring harness
- Faulty StabiliTrak/ESP control module or software glitch
- Battery or charging system issues causing voltage irregularities
Because the underlying problem can range from a simple tire issue to a real brake/ABS fault, a code scan and visual inspection are the next sensible steps.
How to diagnose
The following steps help isolate the cause before committing to more expensive repairs. Start with the basics and move to diagnostics as needed.
- Check all tires for proper inflation, consistent tread, and no damage; inflate to the vehicle's recommended pressure.
- Inspect wheel speed sensors and wiring at each wheel for corrosion, damage, or disconnection; look for damaged or loose harnesses.
- Check brake fluid level and inspect pads/rotors for wear or leaks; ensure there are no hydraulic issues.
- Inspect fuses related to ABS and traction control in the vehicle's fuse box and replace any blown fuses.
- Use an OBD-II scanner with GM-specific protocols to read DTCs tied to ABS/TC/StabiliTrak; note codes for pinpointing faulty components.
- Interpret the codes: common issues include sensor failures, wiring faults, or a failing ECU/module; follow the code-based repair path.
- Clear codes after repair and take the vehicle for a cautious road test to confirm the light stays off.
If you’re not comfortable performing these checks, or if the light remains on after addressing the most likely causes, seek a qualified technician for a diagnostic and repair.
When to seek professional help
Traction control and ABS are safety systems. If the light is on persistently, or if you notice any braking anomalies, it's wise to consult a professional. Special cases include a flashing light indicating active intervention in slick conditions, or concurrent ABS warnings.
- The light is flashing continuously during driving, indicating active system intervention in a slip situation; if conditions warrant, ease off and avoid rapid acceleration
- The ABS light is on at the same time as the traction control light
- You feel brake pedal pulsation, reduced braking performance, or unusual noises
- You recently installed aftermarket parts or had wiring work done near sensors
A dealer or ASE-certified shop can pull the exact DTCs, inspect sensors and wiring, and perform software updates or component replacements as needed.
Summary
In a Chevy Equinox, a lit traction control indicator signals that the stability/traction system has detected a problem or is reducing wheel spin to protect traction. Causes range from minor tire pressure issues to faulty wheel speed sensors, ABS components, or wiring. Start with basic checks, read diagnostic codes, and pursue professional diagnostics if the cause isn’t obvious or if braking performance is affected.
