What are ESP and traction control?
Your guide to what ESP and Traction Control (TC) mean, and what the differences between each are.


Words by: Lex Kristan
Published on 4 October 2021 | 0 min read
Safety security has developed a lot over the last few years. Modern safety standards include ESP and traction control, meaning it’s harder than ever to crash your car. Both ESP and traction control are electronic safety systems designed to keep your car from losing steering control and skidding, and these types of technology have become crucial for driver safety in modern cars. By constantly monitoring your steering wheel angle, they ensure that your car’s always heading in the right direction, helping to keep you and your fellow road users as safe as possible.
What is ESP?
ESP is a generic term that covers a huge array of manufacturer names and acronyms for what is basically the same thing, so if you see different acronyms out there, don’t worry – it’s just different ways of saying the same thing. Examples of this could be Electronic Stability Control (ESC), Dynamic Stability Control (DSC), Vehicle Dynamic Control (VDC), or Vehicle Stability Assist (VSA), amongst others.
How does ESP work?
ESP has been mandatory for new cars in the UK since 2011. Some cars feature ESP systems with a Sport mode, which loosens these electronic reins a little to allow more spirited driving without engaging the system. However, the system still intervenes past a certain point. A few vehicles allow ESP to be turned off entirely, but many don’t. Most motorists won’t need to do this on the road, and it’s much safer to leave it on.
ESP warning light
If the ESP light is on constantly, without any flickering, then the ESP system has been turned off or isn’t operating properly. If this is the case, you should get it checked by a mechanic as soon as possible.
What is traction control?
Traction control uses the ESP sensors to prevent or at least reduce wheelspin, which happens when the tyre isn’t gripping the road surface as effectively as it should. Wheelspin can prove to be extremely dangerous on the road as it can lead to either understeering (the car not responding fast enough to your steering input) or oversteering (when the back of the car slips out of line – cool on a racetrack, but not so cool on a busy road). It, too, can go by a variety of manufacturer-specific names and can also be turned off in some cars. Again, we wouldn’t recommend doing so on the road.
How exactly does traction control work?
When the anti-lock braking system (ABS) sensors detect that the wheel is spinning, it will trigger a quick cut to the engine’s output which allows the wheel to slow down its rate of spin and regain traction.
How do I know my traction control is working?
Either way, the traction control system has a dedicated warning light on your dashboard that will pop up to indicate that all systems are a-go when you start up your car. Pay attention to this warning light - if it doesn’t disappear when the engine is started, you’ll need to get your car checked by a professional ASAP as there’s a fault. Don’t forget to test the ESP and traction control when you’re test driving a used car, and be sure to ask your dealer about these, and any other new features, if you’re in the market for a brand-new car.