Tema 22: accessories, equipment and ADAS in the DGT exam

Neither a radar inhibitor nor headphones at the wheel are innocent 'accessories', and ADAS helps you drive, it does not drive for you.

Reviewed on 11 October 2026 · sources: BOE and DGT

This tema asks which accessories are banned at the wheel and what role ADAS systems play.

Installing or carrying radar or speed-camera inhibitors is banned, and so is carrying devices that detect radars or speed cameras in the vehicle. A device that merely tells you where the surveillance system is, without interfering with it, is allowed.
Driving while using audio headsets, earphones or similar devices connected to a sound receiver or player, or other devices that reduce attention, is banned. There are exceptions for instruction and aptitude tests, and for the certified wireless device in a motorcycle or moped helmet.
DGT manual teaching: ADAS, such as automatic emergency braking, help you drive but do not replace the driver.

Watch out: wearing only one earphone is not an exception: the rule bans driving while "using" the device, without distinguishing one from two.

Source: LSV art. 13.6; RGC art. 18.2; DGT theory-teaching checklist, Permiso B.

Key rules of topic 22

Installing or carrying radar or speed-camera inhibitors in the vehicle is banned, as is using devices that detect them.

A device that merely tells you where the surveillance system is, without interfering with it, is allowed.

You may not drive wearing audio headsets, earphones or similar connected to a sound player, or others that reduce attention.

Instruction and open-road aptitude tests for the driving licence are exempt.
So is a certified wireless device built into a motorcycle or moped helmet, for intercom or navigation only.

ADAS systems, such as automatic emergency braking or lane-departure warning, are driving aids, not substitutes for the driver.

Study topic 22 step by step: the rule, its citation and exam-style questions.