Cars made by Citroen, Honda, Kia, Nissan, Peugeot and Vauxhall are still vulnerable to keyless thefts

14 manufacturers tell Which? they have NOT implemented any new security measures

  • Some 33 brands asked what measures they had to prevent keyless car thefts
  • Only Mercedes-Benz and Tesla have blocking systems across their ranges
  • Another 12 brands have measures to stop relay attacks, but not for all models
  • Many of these new systems are motion sensors that put keyfobs into an auto sleep model if the keys have not been moved for half an hour
  • This stop them from being infiltrated using relay attacks while owners sleep
  • Experts welcomed their introduction but say they're not the definitive answer 

An astonishing number of car makers have admitted they have not fixed well-known security flaws with their vehicles that allow them to be remotely stolen by criminals.

A total of 14 out of 33 manufacturers told Which? that they hadn't implemented new security measures to resist keyless thefts, with just two installing range-wide technology to safeguard their vehicles from thieves.

With keyless theft - using so-called 'relay tactics' that trick the owner's fob into opening the vehicle - rampant across the country in recent years, the consumer group says auto firms 'continue to make new cars that can easily be stolen by criminals'.

Alarmingly, 14 of the brands contacted by Which? said they had not implemented any new preventative measures to tackle relay thefts. 

Manufacturers that have failed to bring in a fix include Citroen, DS, Honda, Hyundai, Kia, Lexus, Mazda, Mitsubishi, Nissan, Opel/Vauxhall, Peugeot, Renault, SsangYong and Suzuki.

Fiat Chrysler Automobile - the parent group for Alfa Romeo, Fiat, Jeep and Maserati -  did not respond to Which?’s questions.

Only two brands, Mercedes and Tesla, told teh consumer association that they had issued a fix across their entire range of new and existing cars.

Another 12 brands have issued a fix, though only across part of their range. Other car firms including Volvo, Land Rover and Ford are upgrading the security defences of newer vehicles but don’t have any plans to apply this to many of their older cars.

Read the full article to see the detailed results:

Author: Rob Hull for