Skip advert
Advertisement
Tips and advice

What are speed limiters?

The EU has mandated speed limiters on all new cars, we explain what they do

Speed Limiters - Intelligent Speed Assist

Year after year, the list of mandatory safety equipment on new cars continues to get longer as authorities strive to make our roads safer. As of July 6 2022, the EU has mandated that all new cars must be fitted with speed limiters from July 2024. While it has not been confirmed for the UK, it's highly likely our nation will adopt this rule, too.

Ioniq 5Top 10 most innovative cars

The ruling is planned to improve safety, with the European Transport Safety Council estimating speed limiters can reduce collisions by 30 per cent and road deaths by 20 per cent. But what are speed limiters, and what do they do? In this article we will try to answer your most burning questions surrounding this topic.

What is a speed limiter?

Intelligent Speed Assist

Speed limiters, also known as Intelligent Speed Assistance (ISA), are systems fitted to cars that prevent you from going over a designated speed. These work in two ways: manual systems work similarly to cruise control in the way a driver must set the speed themselves. Once the desired speed is set, the car will not go over that, no matter how much you depress the accelerator pedal. 

Advertisement - Article continues below

ISA systems work a little bit differently; these utilise the GPS in your car’s navigation system and camera-based traffic-sign recognition tech to work out what the speed limit is on each road you drive along. It then automatically sets the speed limiter, so just like the manual version, you won’t stray over the limit. This should even work in temporary speed limit zones, such as those frequently encountered in motorway roadworks.

Can I turn off a speed limiter?

Just like most driver assistance systems, speed limiters can be switched off. Depending on the particular make and model, owners will likely have to delve into their car’s infotainment systems or find a button on the dashboard to deactivate this feature.

Skip advert
Advertisement
Skip advert
Advertisement - Article continues below

Of course, you can always temporarily override the system. A sharp stomp on the accelerator pedal will manually negate the system, allowing you to speed up. This, however, will likely be accompanied by warning lights on the dashboard until you slow down to the correct speed. Under the EU General Safety Rule, manufacturers are able to choose how drivers are warned, with options including the use of acoustic and vibration alerts, haptic feedback from the accelerator pedal or actively slowing the car down.

Are there any cars currently on sale with speed limiters?

Ford Focus ISA

Several manufacturers are already incorporating ISA technology into their cars. The current-generation Ford Focus was the first model to have this feature fitted as standard, with the system trickling down to other models in the range. Other manufacturers that currently offer ISA include Volkswagen, Land Rover and Volvo. 

Do I need to fit my car with a speed limiter?

Legally speaking, owners of cars built before July 2024 will not need to fit their car with a speed limiter. However, it may be worth considering fitting one to your car in order to avoid potential speeding fines.

Need a vehicle that you can depend on? Check out our list of the top 10 most reliable cars

Car technology, made simple

Skip advert
Advertisement
Skip advert
Advertisement

Recommended

Stellantis e-Routes app brings advanced EV route-planning to Apple CarPlay and Android Auto
Stellantis e-Routes
News
5 Jul 2024

Stellantis e-Routes app brings advanced EV route-planning to Apple CarPlay and Android Auto

Car ECU explained: What it does, faults and repair costs
ecu
Tips and advice
2 Jul 2024

Car ECU explained: What it does, faults and repair costs

Child car seat laws: how to keep your child safe and avoid a fine
child car seat laws
Tips and advice
1 Jul 2024

Child car seat laws: how to keep your child safe and avoid a fine

Engine management light: what to do if it comes on
Engine warning light
Tips and advice
12 Jun 2024

Engine management light: what to do if it comes on

Most Popular

All-new MG HS aims to “disrupt the market”
MG HS teaser profile
News
1 Jul 2024

All-new MG HS aims to “disrupt the market”

Ford Capri returns! Coupe reborn as new all-electric SUV
Ford Capri front quarter
News
10 Jul 2024

Ford Capri returns! Coupe reborn as new all-electric SUV

Best new car deals 2024: this week’s best PCP finance offers
Carbuyer best new car deals hero
Deals
5 Jul 2024

Best new car deals 2024: this week’s best PCP finance offers

Tips & advice

View All
Car dashboard warning lights: the complete guide
Car dashboard symbols and meanings
Tips and advice
26 Mar 2024

Car dashboard warning lights: the complete guide

Electric car charging stations: a complete guide
Public EV charge point
Tips and advice
11 Jan 2023

Electric car charging stations: a complete guide

PCP vs HP – which type of car finance is right for you?
PCP vs HP
Tips and advice
17 May 2022

PCP vs HP – which type of car finance is right for you?

Average speed cameras: how do they work?
Average speed cameras: how do they work?
Tips and advice
21 Mar 2024

Average speed cameras: how do they work?

Best cars

View All
Top 10 best car interiors
Peugeot 208 hatchback
Best cars
25 Jun 2021

Top 10 best car interiors

Top 10 best electric cars 2024
Best electric cars
Best cars
16 May 2024

Top 10 best electric cars 2024

Top 10 best cheap-to-run cars 2024
The best cheap-to-run cars 2023
Best cars
2 Jan 2024

Top 10 best cheap-to-run cars 2024

The UK's top 10 fastest hot hatchbacks 2024
Fastest hot hatchbacks hero
Best cars
2 Jan 2024

The UK's top 10 fastest hot hatchbacks 2024