What is causing the issues with the Mazda CX-60 and Volvo XC40 speed limit recognition systems?

The article states that the Traffic Sign Recognition (TSR) systems in these premium cars are misreading speed limit signs, providing drivers with incorrect alerts that they can drive at speeds of 80mph, 90mph, or even 100mph in 30mph zones.

How are the Porsche Macan Turbo owners affected by the speed limit recognition problems?

The article mentions that the Porsche Macan Turbo, a high-performance car that can accelerate from 0-60mph in just 3.3 seconds, has experienced issues where the car suddenly changes speed to match the incorrectly read speed limit, creating dangerous situations on the road.

What is Mazda and Porsche doing to address the speed limit recognition issues?

The article states that Mazda is investigating the problem, while Porsche is planning to release a software update to improve the traffic sign recognition technology in the Macan.

Home / Technology / Cutting-Edge Car Tech Misreads Speed Limits, Putting Drivers at Risk

Cutting-Edge Car Tech Misreads Speed Limits, Putting Drivers at Risk

15 Nov

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Summary

State-of-the-art speed limit recognition systems in premium cars malfunctioning
Drivers reporting incorrect speed limit alerts, including 80mph in 30mph zones
Automated systems linked to cruise control can cause sudden acceleration or braking

Cutting-Edge Car Tech Misreads Speed Limits, Putting Drivers at Risk

As of November 15th, 2025, a growing number of drivers are reporting issues with the state-of-the-art speed limit recognition technology in their premium vehicles. The Traffic Sign Recognition (TSR) system, which uses cameras to read speed limit signs and alert drivers, has been misreading signs and providing incorrect information.

Owners of the £55,000 Mazda CX-60 and £37,000 Volvo XC40 have complained that the system is advising them they can drive at speeds of 80mph, 90mph, and even 100mph in 30mph zones, including near schools. One driver reported being told they could do 80mph in a Sainsbury's car park, while another said the problem is causing "mayhem" around schools.