Overview
- An AA video on Instagram advises inserting a 20p coin into tyre grooves to gauge tread depth before winter journeys.
- If the coin’s outer band stays visible, the tread is below the 1.6mm legal minimum and should be checked by a professional.
- Drivers are urged to repeat the coin check at least three points around each tyre for a more reliable reading.
- Halfords warns that worn tyres reduce grip, lengthen braking distances, and raise aquaplaning risk, with UK penalties reported as £2,500 and three licence points per bald tyre.
- The AA also recommends checking the battery, using winter‑grade screenwash, carrying a blanket, snacks, a torch, and a charger, and watching for cold‑weather drops in tyre pressure.