Traction Control Light On

What is a Traction Control System?

The traction Control System (TCS) or Electronic Stability Control (ESC) is designed to improve the overall stability and safety of your vehicle. The system works by monitoring the speed of each wheel and reducing engine power or applying the brakes to individual wheels as needed to prevent the wheels from slipping or spinning excessively.

The traction control system uses the core parts of the car’s ABS brake system to achieve this. These parts include:

  • Traction Control System (TCS) or Electronic Stability Control (ESC) computer
  • wheel speed sensors
  • solenoids
  • hydraulic modulator assembly
  • electric pump
  • accumulator
  • brake fluid
  • brake components
  • throttle position and load sensor data (from the engine computer)

Why is the Traction Control Light On?

Traction control light icons

Traction control warning lights

If the traction control light is on in your vehicle, it indicates that there is a problem with the Traction Control System (TCS). The TCS light typically appears on the dashboard as an icon of a car with wavy lines behind it.

Here are some common reasons why the traction control light may come on:

  • Malfunctioning traction control system components: A faulty Traction Control System could cause the light to come on. This could be due to a malfunctioning sensor, a problem with the system’s software, or a damaged control module.
  • Wheel Speed Sensor Malfunction: The Traction Control System relies on wheel speed sensors to monitor the speed of each wheel. If one of the sensors fails or is malfunctioning, the system may not work properly, and the traction control light may come on.
    Wheel speed sensor replacement >
  • Damaged ABS Sensor: The Anti-Lock Braking System (ABS) and the TCS share some of the same components, including the wheel speed sensors. If the ABS sensor is damaged, the TCS may also be affected, causing the light to come on.
    ABS sensor replacement >
  • Low Fluid Levels: If the brake fluid level in your vehicle is low, it could cause the traction control light to come on. This is because the TCS and ABS systems rely on proper hydraulic pressure to function correctly.
    Brake fluid services in Hamilton >

Diagnosing your Traction Control Warning Light

At Grimmer Motors we have invested heavily in the latest diagnostic scanner technology to be able to read fault
codes and live data from virtually all vehicles. This means that our highly qualified, skilled and trust worthy mechanics will quickly and easily be able to read the fault codes and live data from your vehicle and provide friendly honest advice about the likely cost of repair.

Please Note: Electronic Tests depend on the vehicle technology and may not be possible on some vehicles.

Contact us today to make a booking to have your Traction Control System (TCS) or Electronic Stability Control (ESC) system diagnosed and repaired.

Book Now

Live/work in any of the following areas? Grimmer Motors could be extra convenient for you.Fairfield

  • Fairview Downs
  • Enderly
  • Claudelands
  • Peachgrove
  • Hamilton East
  • Chartwell
  • Chedworth
  • Central Hamilton
  • Forest Lake, Beerescourt
  • Frankton
  • Melville
  • Waikato



Grimmer Motors Ltd


Paul Johns

Booked the ol' Fuga in for a service this week. I dropped it off early to take advantage of the free clean and asked if I could have it ready at 3 pm. The service went well and they... pointed out things that would need attention in the future. I like the introduction of the vehicle service and repair log book. Which has all my previous services and fix ups recorded in it. And the Fuga was freshly cleaned and ready at 3pm, like they said. Thanks Team

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The team at Grimmer Motors are very friendly and have awesome customer service. My car needed scan as flashing light on dash. The problem was identified , easy to ... understand explanation given and quote for fix provided. Thanks team.

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