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Guide · 8 min read

Driving and dementia: when to stop, and how to have the conversation

It is one of the hardest conversations in dementia care. It is also one of the most important — for them, for you, and for everyone else on the road. Here is how families handle it well.

Warning signs it's time

  • Getting lost on familiar routes — even once is enough to take seriously.
  • Slow reactions: late braking, hesitation at junctions, struggling with roundabouts or four-way stops.
  • Drifting in lane, riding the kerb, missing exits.
  • New dents and scrapes on the car they can't explain.
  • Confusing the pedals, or stalling repeatedly.
  • Anxiety or anger about driving they didn't have before — they often know before they can say it.
  • Other drivers honking at them more often.
  • Family passengers refusing to be driven.

How to have the conversation

  • Plan it together with another family member or the GP / PCP — not alone. A united front is kinder than weeks of repeated arguments.
  • Frame it as 'the doctor said' or 'the diagnosis says' rather than 'I think'. Removes the personal sting.
  • Acknowledge what driving means — independence, identity, the shopping run, visiting friends. Don't pretend it's a small loss.
  • Offer the replacement before you remove the keys: a taxi account, a weekly lift from a grandchild, a Saturday outing.
  • If they refuse to stop, you have options below — but try the conversation route first, with the doctor's backing.
  • Don't argue when they're tired, late in the day, or after a difficult appointment.

🇬🇧 The law in the UK

  • It is a legal requirement to tell the DVLA about a dementia diagnosis. The person with dementia must do it (or you, with their consent or as their attorney). Failing to is a £1,000 fine and can invalidate insurance.
  • The DVLA decides — not the GP. They may issue a 1, 2 or 3-year licence, request a driving assessment, or revoke the licence.
  • A driving assessment at a Mobility Centre (rdac.co.uk) is the calmest route: an independent specialist, not a family argument.
  • Insurance must also be told. Driving without disclosure invalidates the policy and can leave the family liable.

🇺🇸 The law in the US

  • Reporting rules vary by state. California, Pennsylvania, Oregon, Delaware, Nevada, and New Jersey require doctors to report dementia diagnoses to the DMV. Most other states allow but don't require it.
  • Any family member can typically submit a confidential 'unsafe driver' report to their state DMV — it will trigger a re-test, not an automatic suspension.
  • AAA's 'Roadwise Driver' or a CDRS (Certified Driver Rehabilitation Specialist) on-road assessment is gold-standard, often covered partially by Medicare with a doctor's order.
  • Insurance must be told if a diagnosis is on record. Driving without disclosure can invalidate the policy.

If they refuse to stop

  • Ask the GP / PCP to put it in writing. Many people accept from a doctor what they won't from family.
  • Disable or remove the car — sell it, lend it to a grandchild, or simply move it out of sight. 'The car's in for repair' for two weeks often works when the conversation hasn't.
  • Hide the keys. Crude, but used by many families.
  • Take the legal route — DVLA report (UK) or state DMV confidential report (US). Both can be done by family without the driver knowing it was you.