How to know when someone with dementia should stop driving

Warning signs such as getting lost on a familiar route, confusing the gas and brake pedals, drifting between lanes, reacting slowly at intersections, or coming home with fresh dents or close calls call for prompt action and a driving-safety assessment. You do not have to make this call alone, and you should not have to be the villain. Ask the doctor to advise stopping, in writing if they can, so the diagnosis and the physician carry the message instead of you. Then lead the conversation with care rather than accusation, line up other ways to get around before you take the keys, and expect it to take more than one talk.

What are the warning signs it's time to stop?#

The Alzheimer's Association lists warning signs that driving may have become unsafe. Treat them as reasons for a prompt driving-safety check, with careful observation and a formal evaluation when needed:

• Getting lost, or forgetting the destination, on a familiar route.
• Confusing the gas and brake pedals, or hitting curbs.
• Poor lane control, drifting, or errors at intersections.
• Slow or poor decisions in traffic, or driving too fast or too slow.
• Missing traffic signs, or getting angry and confused behind the wheel.
• New dents and scrapes, or more honking from other drivers.

You will often feel the change as a passenger before anyone measures it. Trust that feeling. Waiting for a crash to make the decision is the one option no family wants. The Alzheimer's Association's guidance on dementia and driving lists these signs in full.

Should the doctor be involved? Yes, and first.#

Bring the doctor in before you have the conversation yourself. A clear word from a physician, even a note on a prescription pad saying the person should stop driving, carries a weight that a spouse or adult child usually cannot, and it moves the blame off you and onto the illness. Ask the doctor directly to advise stopping, and to put it in writing if they can.

The doctor is also your route to the formal options, if it comes to that. State licensing agencies accept requests to re-evaluate a driver, and those referrals often come from doctors and from family members. The rules and procedures vary by where you live, so ask your doctor or your local DMV what is possible for you.

How do I actually have the conversation?#

Meet the person, not just the problem. A few things that tend to help:

• Lead with love, not accusation. "I love you, and I'm scared about you getting hurt" lands better than "you can't drive anymore."
• Name the loss out loud. "I know this is a big deal, and I'm sorry." A car is freedom and identity in a set of keys, so don't rush past the grief of handing it over.
• Appeal to protecting others. For many people, the thought of hurting a child in a crosswalk reaches somewhere that worry about themselves does not.
• Expect more than one talk. Some people let go quickly; many don't, and anger is common and not personal. Be patient and firm at the same time.

The driving conversation, in three moves.

What if they refuse to stop?#

Sometimes the conversation isn't enough, and safety still has to win. Escalate gently, but don't stop:

• Keep the keys out of sight, or hand over a key that no longer works.
• Move or park the car where it isn't a daily temptation.
• Ask the doctor about a formal driving evaluation, which puts the judgment in a professional's hands, not yours.
• As a last resort, the Alzheimer's Association's own advice is to take the keys, disable the car, or sell it, always with a safe way to get around in its place.

This can feel like a betrayal in the moment. It isn't. Protecting a person who can no longer fully judge the risk is one of the hardest and most loving jobs there is.

How do we handle life after the keys?#

Solve the real problem, which isn't "no driving" but "how do they get where they need to go, and who are they now?" Two things to line up:

• The rides, before you need them. A family rotation, senior transport services, a rideshare account someone manages, the friend who was driving that way anyway. "No driving" should always arrive with "here's how we'll get you to your appointments and your card game."
• The role, not just the ride. Losing the keys often means losing a job someone held in the family: the errand-runner, the one who drove the grandkids. Hand them a different, doable job in its place. A world that shrinks too fast is its own quiet harm, so build connection back in on purpose.

When should I call the doctor?#

Call sooner rather than later if a new and sharp jump in confusion appears. The Alzheimer's Association advises a medical evaluation for any sudden change in behavior to rule out other causes. Ask, too, about a comprehensive driving evaluation by an occupational therapy driving rehabilitation specialist, who can provide a more objective assessment and suggest ways to reduce or manage driving risks. You don't have to hold this whole decision by yourself.

Be gentle with yourself#

If you're the one who takes the keys, you may become, for a while, the villain in someone's story about their own decline. That is an unfair weight, and it's worth naming plainly: you did a hard, responsible, loving thing, and being resented for it does not make it wrong. Tell one person who can remind you that you did right.

Evenings and the home have their own safety worries. When the late-day hours get hard, the same steady thinking helps: What helps with sundowning.

If steady, practical help like this would be welcome, this guide grew out of Again, With Love, our free Sunday-morning newsletter for people caring for someone with dementia.

Again, With Love is a caregiving aid, not medical advice. For medical questions, please talk with your loved one's doctor.