Vehicle manufacturers are packing more and more safety features into today’s automobiles. But one that’s been around for the last 45-year’s is still one of the most effective. That feature is traction control.
While it used to be the sole domain of top-end cars, it’s finding its way into more and more automobiles, and that’s a good thing. When everything is working correctly, it can be a lifesaver. But while it’s a great feature to have, you need to know what it means and what to do when you see a TSC light.
That’s why I came up with this comprehensive guide to walk you through everything you need to know about this amazing technology.
What Does TCS Mean On A Car?
TCS on a car stands for Traction Control System. The traction control systems detect when the wheels are about to lose traction. When the system detects this, it intervenes by reducing engine power to the wheel. This helps the car to maintain traction and stay on the road.
If you see a TCS light on your dashboard, it means there is an issue with the traction control system, which I will now discuss further.
What Does The Traction Control Light mean?
The traction control light (TCS) illuminates when there is a trouble code stored in the traction control system. The traction control system helps to keep you in control of your vehicle in the event that one or more of your wheels lose traction while you’re driving.
This is most common in snowy, icy, or otherwise less than ideal road conditions. Moreover, your driving patterns affect how often you’ll need your traction control system. The more reckless you drive, the more you’ll need traction control to bail you out.
Traction Control System Light (TCS) Function
Your TCS light serves several functions. For starters, it lets you know when the system is active. When you’re driving and the light flashes on and off, it means that your traction control is on. You’ll feel the brakes locking up and releasing as the ABS kicks on and off. If your wheels were slipping, everything is working as it should
Moreover, the light should turn on and then off when you first turn the key in the ignition. This is a system check, and as long as the light goes away, it means that everything is working the way it should.
When you should be worried is when the TSC light doesn’t go away after the system check. If it stays on, it means that your vehicle’s traction control system isn’t working the way it should, or you’ve turned it off.
Finally, if the light is flashing randomly as you drive even though your wheels aren’t losing traction, that means you have a serious fault in your system, and you shouldn’t be driving your vehicle until you fix it. Otherwise, you’re risking your ABS randomly applying your brakes as you drive, and this could quickly lead to an accident.
Causes of Traction Control System Light (TCS)
The most common cause of a TSC light is that the system is turned off or a faulty wheel speed sensor. But while those are the most common problems, they aren’t the only things that could lead to a TSC light.
Below, I’ve highlighted the four most common reasons your vehicle’s TSC light might be on.
1. TSC System Turned Off
Did you know that you can turn off your vehicle’s traction control? While the specific steps to do it for each vehicle are slightly different, almost every vehicle allows you to do this. While it usually only helps you when you’re trying to drift, it’s one of the most common reasons this light stays on.
Look up how to turn your vehicle’s traction control on and off. Give it a shot. If the light goes away, that was your problem. But if it doesn’t, keep reading.
2. Faulty Wheel Speed Sensors
By far the most common reason that a vehicle’s traction control system starts acting up is because of a faulty wheel speed sensor. Each of your vehicle’s wheels has a sensor that reports how fast it’s spinning to the ECM.
When one or more of those readings doesn’t match what the rest of the wheel speed sensors are reporting, then your traction kicks onto to remedy the situation. But if the wheel speed sensor is offline or reporting faulty readings, your traction control is going to start acting up.
3. Faulty Steering Angle Sensor
Another critical component in your traction control system is the steering angle sensor. That’s because as your vehicle turns, the outside wheels are going to turn faster than the inside wheels. This is completely normal, and it’s your steering angle sensor that lets your ECM know what’s going on.
But if the steering angle sensor reports that you’re still going straight while you’re actually turning, the traction control system will register a fault, and it could kick on while you’re turning.
4. Faulty Wiring/Electrical Issues
While wiring and electrical issues are less likely than a faulty sensor, it is still a distinct possibility. That’s because even if all the sensors are working correctly, it won’t matter if the wires that transmit that signal are corroded or broken.
The most common location for faulty wiring is right by the wheel speed sensor since those wires are often exposed to the elements. Always rule out faulty wiring or deeper electrical issues before dropping a ton of money on new sensors.
Is It Safe To Drive With a Traction Control System Light (TCS) Light?
It is usually safe to drive with a TSC light – but it is not advisable to do so. The reason for this is twofold. First, your traction control system is there to help your vehicle maintain traction on slippery road conditions, so you’re losing an important safety feature when it’s not working correctly.
Second, depending on the fault in the system, your traction control could kick on while driving. This would mean that your ABS would start applying your brakes as you drive down the road. This is incredibly rare, but it can happen, which is why you should fix the fault as soon as possible.
Summary
While your traction control system can seem like a headache when it’s not working the way it should, this innovation has prevented thousands upon thousands of accidents throughout the years. So, while you might be cursing the system now, you’ll be thankful for it when you need it most.
Take the time to fix your traction control system if it starts acting up. Chances are you’ll be thankful that you did.
20 thoughts on "Traction Control Light: What It Means And How To Fix It"
Sarah F.
My Nissan quest 2009 shows TCS and SLIP on the dashboard and the car just goes off and would not start easily or not start at all. Kindly assist.
Gbadamosi adebimpe tolulopemi
Great works you are doing . I uses hyundai XG 350 2003 model and I must say the tcs and abs lights are both on . The problem am having now is that I went out with car and I noticed my movement was coming and going . Later the car will just be raising and not movin while in drive position and same with the reverse gear. The gear oil was checked and ok so I just had to fill more to it but still not working . Please what do you advice me to do because the oil is not smelling burnt.
Djtopzy
Hello Sir. Am driving a Nissan Quest 2005. Once I start the car The TCS Off And SLIP LIght On always and the Acceleration will not work without even moving the car .. pls I need help
Vennicee Washington
Ok if the traction control is off should I leave it off? I was trying to figure out what it was for or do when I push it.
Waseem
Tcs and abs coming in miter
Ahmed Saied
Dear Sirs, Thanks to help me in my problem, first off all my car is Skoda Octavia 2010, when i start the engine and don't moved nothing happened and when i start to move like 100 meter to 200 meter the TCS error light only and the engine be not stable, when i check it by VCDS program and check the ABS system found the error go to engine and when i open the engine error found error number 17549 and if i check the site of this error found as follow <<<<<<<<<<<<<<<<<<<<<<<<< Meas. Blocks Special Notes Uwe: I think this code is set when the airflow being measured (or otherwise calculated) by the ECU doesn't make sense given other operating parameters such as RPM and throttle opening, manifold pressure, etc. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> kindly help me Regards Ahmed Saied
Nancy Griffin
So I woke up one morning and started my Toyota Odessy and started out of my driveway and my TCS light came on and then my motor light came on . it took it awhile to go into 1st. Gear and it would never go into any other gears. My son said it does need a new motor mount on one side. Can that cause this problem. Or what is causing this please help me. I just parked it in my garage.
Tom
For a zillion years before ABS and Traction Control Systems, cars performed just fine. They perform better with both in many conditions but if you turn off the TCS (presume you have this option/switch) and drive normally, you can put off repairs indefinitely. Obviously getting it fixed sooner than later is preferred, but if cash is short and repairs cant be made immediately, breath easy - you are not permanently damaging your vehicle while continuing to drive it .
Shala Jackson
2003 Infiniti i35 just shut off on me the TCS off n slip came on what does that mean?
Jo
The TCS light goes on when I go on a bump in my parking lot also the light blinks on drive I would stop and shut the car off then start it and is good to go what's goin on with it I got a 2002 Honda Acccord
CLOTHILDA.C ALIGWO
Pls my AbS ,TCS and airbag on ford focus 1999 model is constantly on no matter the kilometers u cover plus odd sound while driving. What do I do? my mechanic is doing more about it. Pls help me
marie mawhinney
I WAS IN A CAR ACCIDENT WOULD THAT CAUSE TSC PROBLEM HAD IT CHECK REPLACE TRACTION LIGHT ABS CONTROL MODULE GOING TO TAKE BACK IT IS COMING ON AGAIN
thoko
My mazda cx3 shows the yellow sign TCS off. What to do. Can I drive my car or what can I do
Kandali
Halo..I am having a problem with my jetta 4 bora my TLC light is on constant,in front is different tires sizes can it be the problem?
Allan Teel
2011 Hyundai sonata`both abs and traction control lights on . How to delete these light on the dash
Magnus Sellén
You have to use an OBD2 code scanner and read the trouble codes to see why the light is flashing! Check for any broken wheel bearings or ABS sensors. But the easiest way is to read the codes with a scanner!
Ella Clark
My TCS light and the check engine light went on. Then my Carr started smoking. What’s could this mean? I pulled over...
Holly Kennedy
Why would my TCS light come on an then my van will just die
Barbara Barkow
Why does my ck engine light come on with the tcs light
Eloidor Rafiu
Where is the off on botton located in my Mazda mpv 2005