This is the conversation caregivers dread most, and often postpone until something happens. It's worth having early — while it can still be a plan rather than an emergency.
General guidance, not medical or legal advice. Licensing rules and physician reporting requirements vary significantly by state.
Warning signs
Look for a pattern rather than a single incident. Anyone can have one bad day.
On the car itself — new dents and scrapes, especially on the same side; scuffed mirrors; damage nobody can explain.
On the road — getting lost on familiar routes, drifting between lanes, stopping at green lights or rolling through red ones, confusing the gas and brake pedals, difficulty judging gaps at intersections, other drivers honking regularly, near-misses, a new pattern of tickets or warnings.
In them — slower reactions, difficulty turning to check blind spots, tiring quickly, becoming unusually anxious or agitated behind the wheel, or new avoidance (won't drive at night, won't take the highway, won't go anywhere unfamiliar). That self-restriction is often the earliest honest signal — it means they already know something has changed.
In you — the most reliable test of all: would you let your child ride with them? If the honest answer is no, that answer applies to your parent too.
What's usually underneath it
Driving problems are rarely about age itself. They're about specific, often treatable, things:
- Vision — peripheral field loss, poor night vision, slow recovery from headlight glare, cataracts
- Medications — sedatives, opioids, sleep aids, some antihistamines and bladder medications, and combinations of them. Ask a pharmacist to review the full list specifically for driving effects; this is a common and fixable cause.
- Physical range — arthritis limiting neck rotation for blind spots, foot neuropathy blunting pedal feel, weakness
- Cognition — slowed processing, divided-attention difficulty, impaired judgment
- Sudden-incapacity conditions — seizures, fainting, poorly controlled diabetes, some heart rhythm problems
Some of these are correctable. A cataract surgery or a medication change can buy back years of safe driving, which is a much better outcome than a blanket stop.
Dementia is a special case
A diagnosis of mild dementia does not automatically mean someone must stop driving today. But dementia is progressive, so there will be a stop point, and the person's ability to judge their own driving degrades along with the driving itself.
The best thing you can do at diagnosis is agree a plan while they can still participate in it: a schedule of re-evaluations, and ideally an agreement written down about who decides and when. A decision your parent helped make is far easier to enforce later than one imposed on them.
Get someone else to make the call
This is the single most useful thing in this article. You do not have to be judge and jury, and you shouldn't try to be.
A driver rehabilitation specialist — usually an occupational therapist with specific training — can do a comprehensive on-road evaluation. This is the gold standard: objective, thorough, and it often produces something more nuanced than pass/fail, like "safe within five miles in daylight" or "safe after these adaptive changes." Ask the doctor for a referral, or search the Association for Driver Rehabilitation Specialists.
The physician can raise it directly, and often lands where you can't. Some states require doctors to report certain conditions; others permit it.
The licensing agency. Most states accept requests for re-examination, sometimes from family members, and in many states such reports can be made confidentially. A road test result from the DMV is a fact rather than your opinion, which changes the whole dynamic of the argument.
Replace the mobility, don't just remove the keys
This is where families most often go wrong. Losing the car is not just losing transport — it's losing independence, spontaneity, and often social contact. Older adults who stop driving face measurably higher rates of isolation and depression. Handled badly, taking the keys solves a safety problem by creating a health problem.
Have the alternatives in place before the conversation, and make them concrete:
- A standing weekly schedule — someone drives to church Sunday, groceries Wednesday. Predictability matters more than availability.
- Rideshare, with the app set up on their phone and someone else's card attached, or an account family can book rides on remotely
- Your Area Agency on Aging — most areas have senior transport, volunteer driver programs, or subsidized paratransit that families never hear about
- Delivery for groceries and prescriptions
- Faith communities and senior centers, many of which run rides
"You can't drive anymore" is a devastating sentence. "You don't need to drive anymore — here's how you'll still get everywhere" is a different one.
If they refuse
Escalate gradually, and understand each step costs something with the relationship:
- A letter or direct statement from the doctor
- A formal driving evaluation — let the result speak
- A request for DMV re-examination
- Practical measures: keeping the keys elsewhere, disabling the vehicle, having a mechanic keep it "for repairs", or selling the car with their agreement
- Removing the car entirely
Bear in mind that continuing to drive unsafely carries real liability — for them and potentially for a family that knew. That's a legitimate thing to say out loud, and sometimes it's what lands when nothing else does.
Say the true thing
Most of the persuasion arguments miss what actually matters to people. What often does land is the risk to someone else: "If you hurt a child, you would never forgive yourself. I'm not worried about your driving record. I'm worried about you having to live with something."
That framing respects them. It treats them as someone whose values you're appealing to, rather than someone being managed.