Driving and dementia — when to have the conversation about car keys
For many older people, driving represents freedom, identity, and independence. Losing the right to drive is one of the most significant transitions of later life — and one of the most difficult conversations families face. Dementia makes it both more urgent and more complicated.
Why this conversation is particularly hard
Driving is not just practical transport. For many people — particularly those in regional areas where public transport is limited — it is the difference between independence and dependence. It connects people to their lives: to friends, to appointments, to shopping, to the activities that give their days structure and meaning.
The conversation is also hard because people with dementia often genuinely believe they are safe to drive — the condition itself affects the insight required to accurately assess one's own capabilities. A person who cannot safely judge whether they should be driving is also unlikely to be able to accurately judge whether they should stop.
The legal position in New Zealand
In New Zealand, drivers who have been diagnosed with dementia are required to undergo regular medical assessments of their fitness to drive. The GP plays a central role in this process and has an obligation to notify the NZ Transport Agency (NZTA/Waka Kotahi) when a patient's medical condition raises concerns about driving safety.
A diagnosis of dementia does not automatically end driving. Some people in early dementia can drive safely for a period. However, this must be assessed regularly — typically every six to twelve months — rather than assumed.
THE GP'S ROLE
If you are concerned about a parent's driving, speaking privately with their GP is the most important step. The GP can initiate a formal medical fitness-to-drive assessment through NZTA. This takes the decision out of the family's hands and places it where it belongs — with a medical assessment, not a family argument.
Warning signs to watch for
The following behaviours during or after driving suggest that driving safety may be deteriorating:
Getting lost on familiar routes
Difficulty judging speed or distance
Running red lights or stop signs
Confusing the accelerator and brake
Unexplained dents, scrapes, or damage to the car
Other drivers honking or reacting to your parent's driving
Your parent returning home from a drive significantly later than expected
Your parent becoming anxious or confused while driving, or expressing concern about their own driving
Passengers feeling unsafe
How to have the conversation
Start early
The best time to discuss driving and its eventual end is before it becomes urgent, ideally as part of a broader conversation about future plans while your parent is still well. Framing it as planning ahead rather than responding to a problem is less threatening and more likely to result in a productive conversation.
Focus on safety, not capability
Framing the conversation around your parent's safety and the safety of others, rather than around what they can no longer do, is less confrontational. 'I worry about what happens if something goes wrong on the road' lands differently from 'I don't think you should be driving anymore'.
Involve the GP before the confrontation
If the conversation has already become adversarial, asking the GP to raise the issue in a medical context can remove the family from the firing line. 'The doctor said I need to have my driving assessed' is an easier thing for your parent to accept than 'my family says I can't drive'.
Acknowledge what it means
Don't minimise the significance of what you're asking. Losing driving is a real loss and deserves to be treated as one. Acknowledging that — 'I know this is really significant and I want to help figure out how we manage it' — changes the tone of the conversation.
When driving must stop regardless
There are situations where continuing to drive is not a matter of family preference or negotiation — it is a safety issue that must be addressed.
If your parent has had an accident or near-miss attributable to their medical condition, if a GP or specialist has raised serious concerns, or if you have directly observed driving behaviour that poses a clear risk to them or others, action is required rather than further conversation.
In this situation:
Speak immediately and directly with the GP — they have the authority and the obligation to act
If the GP already knows and has not acted, ask directly what assessment has been done and what the outcome was
If necessary, you can notify NZTA directly of your concerns about a driver's medical fitness — this can be done anonymously
After driving stops — addressing the practical gap
The loss of driving is much easier to accept when there is a clear alternative. Before or simultaneously with the driving conversation, begin identifying what will replace the transport your parent currently provides for themselves.
Volunteer driver schemes through Age Concern or similar organisations
Regular support worker visits that include transport to appointments
Family members taking on specific regular transport commitments — GP appointments, shopping, social activities
Taxi and rideshare services, with family helping to set up accounts or book as needed
Community transport options in their specific area
The practical gap is real, particularly in regional areas. Solving it is important, it directly affects your parent's quality of life, social connection, and access to health care after driving ends.
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