Higher-riskArticle link

Assessing Driving Safety: A Step-by-Step Guide for Caregivers

Watching a loved one with dementia get behind the wheel can be terrifying. This guide helps you assess their driving safety through concrete observations and structured evaluations, without confrontation. You'll learn what to look for during a ride-along, how to involve their doctor or a driving specialist, and how to navigate the emotional weight of this decision. There are practical steps you can take today to protect everyone on the road.

Key points

  • Do not rely on your loved one's self-assessment—dementia damages the part of the brain that recognizes errors.
  • A ride-along with a specific observation checklist is the most practical first step to assess safety.
  • Familiar routes are not safe routes—dementia impairs the ability to handle unexpected events.
  • Involve the doctor early; they can deliver the message to stop driving with more authority than you can.
  • A formal driving evaluation by a specialist provides an objective, professional assessment.
  • Prepare for the emotional impact—validate their feelings and have alternative transportation plans ready.

Why driving becomes dangerous in dementia

Dementia doesn't just affect memory—it attacks the brain's ability to process information quickly, judge distances, and react to unexpected events. The part of the brain that helps a person recognize their own mistakes is often damaged early, which is why many people with dementia genuinely believe they are driving fine even when they are not. This is not stubbornness; it is a neurological change. As one expert explains, the brain thinks it is doing okay because the part that allows self-awareness is compromised. This means you cannot rely on your loved one's self-assessment or their promises to 'be careful.'

The hidden risks of familiar routes and short trips

Many caregivers assume that if their loved one only drives to the pharmacy or church—routes they have taken for decades—they are safe. This is a dangerous myth. Dementia impairs executive function, which includes the ability to anticipate consequences, plan, and organize. Even on a familiar road, a child running into the street, a sudden stop, or a detour can overwhelm the brain's ability to respond. The problem is not the route; it is the brain's reduced capacity to handle the unexpected. Driving with dementia is not about knowing where you are going; it is about being able to react to what happens along the way.

The emotional weight of losing the keys

For many people, driving represents freedom, independence, and identity. Taking that away can feel like a profound loss, and your loved one may react with anger, denial, or bargaining. This is normal. The goal is not to 'win' an argument but to protect their safety and the safety of others. Approaching the assessment with compassion—acknowledging their fears and the life change this represents—makes the process less adversarial. Remember, the person is not being difficult on purpose; their brain is telling them they are fine, and they are terrified of losing control over their life.

General caregiving information, not medical advice. Check medications and major care changes with your clinician.

Step-by-step

  1. Start with a covert ride-along. Do not announce that you are testing them. Say something like, 'I need to pick up a few things at the store—would you mind driving? I'm feeling a bit tired.' This keeps the situation low-pressure and gives you a realistic view of their driving habits. Sit in the passenger seat and observe without commenting.

  2. Watch for specific physical and cognitive signs during the drive. Note if they can turn their head fully to check blind spots and use mirrors properly. Look for drifting between lanes, hugging the shoulder, or driving down the center line. Pay attention to whether they slow down in time for stop signs and traffic lights, or if they miss stops entirely. Also note if they maintain a consistent speed—too fast or too slow can both be warning signs.

  3. Check their ability to navigate and stay oriented. Even on familiar routes, do they hesitate at turns? Do they miss their street or get confused about which way to go? Getting lost, even briefly, is a serious red flag. If they seem disoriented, do not confront them—just gently suggest a different route or offer to navigate.

  4. Assess their reaction time and decision-making. Watch how they handle merging into traffic, changing lanes, or responding to a car that brakes suddenly. Are they slow to react? Do they make impulsive moves without checking? These are signs that their brain is struggling to process information quickly enough to drive safely.

  5. After the ride, privately note your observations on a checklist. Do not discuss it with them immediately—they may feel defensive or humiliated. Instead, use your notes to decide whether to seek a professional evaluation. If you saw multiple warning signs, it is time to involve their doctor or a driving rehabilitation specialist.

  6. Schedule a medical appointment specifically to discuss driving. Before the visit, call the doctor's office and share your concerns privately. Ask the doctor to perform a brief cognitive screening and, if appropriate, a vision and sensation check. In some cases, the doctor may directly tell your loved one to stop driving, which can be more effective than hearing it from you.

  7. If the doctor recommends it, pursue a formal driving evaluation through a driving rehabilitation specialist. These evaluations often use a driving simulator or an on-road test with a trained occupational therapist. You can find a specialist through the Association for Driving Rehabilitation Specialists. This provides an objective, professional assessment that can carry more weight with your loved one.

  8. If your loved one is in the early stages and still seems safe on short, familiar routes, consider setting boundaries. Allow driving only during daylight hours, in good weather, and on roads they know well. Reassess every few weeks, as dementia can progress quickly. Do not assume that because they are fine today, they will be fine next month.

  9. Prepare for the conversation about stopping driving by first acknowledging their feelings. Say, 'I know how much driving means to you, and I am not trying to take away your freedom. I am worried about your safety and the safety of others.' Then, together, explore alternatives like rides from family, public transportation, or ride-sharing services. Make sure they have a concrete plan for how they will get to appointments and social activities.

  10. If your loved one refuses to stop driving despite clear risks, and you have tried all other avenues, consider reporting them to your state's Department of Motor Vehicles. In many states, you can submit a form online or by mail to report an unsafe driver. The DMV will then investigate and may require a driving test or revoke the license. This is a last resort, but it can save lives.

What not to do

  • Do not rely on your loved one's self-assessment. They may genuinely believe they are driving fine because the part of their brain that recognizes errors is damaged. Asking 'Do you think you're safe to drive?' will likely get a confident 'yes' that is not accurate.

  • Do not argue or try to reason them into stopping during a heated moment. Arguments create resentment and can damage your relationship. Instead, let the doctor or a driving specialist be the 'bad guy'—they have authority and can deliver the message without the emotional history you share.

  • Do not assume that driving only on familiar routes is safe. Dementia impairs the ability to handle unexpected events, even on roads they have driven for decades. A child running into the street or a sudden detour can overwhelm their brain's capacity to react.

  • Do not hide the car keys without a plan. Simply taking the keys can lead to anger, searching, and even wandering. If you need to prevent driving, consider installing a kill switch, moving the car to a neighbor's garage, or replacing the keys with a non-functional set. Out of sight often means out of mind.

  • Do not ignore the emotional impact of losing driving privileges. Dismissing their feelings or rushing to solutions can make them feel unheard. Validate their fear and loss first—say, 'I know this is hard, and I am here to help you find other ways to stay connected.'

Practical tools

  • The Ride-Along Observation Checklist

    Before the ride, print or mentally note these specific items to watch for: (1) Can they turn their head to check blind spots? (2) Do they use mirrors properly? (3) Do they stay in their lane without drifting? (4) Do they stop at stop signs and lights? (5) Do they maintain a consistent speed? (6) Do they react appropriately to other cars? (7) Do they get lost or confused on familiar routes? After the ride, rate each item as 'OK' or 'Concern.' If you have three or more concerns, it is time for a professional evaluation.

  • The Doctor's Script

    Call your loved one's doctor before the appointment and say: 'I am concerned about [name]'s driving safety. They have dementia and I have noticed [specific examples like drifting lanes or missing stops]. Could you please do a cognitive screening and, if appropriate, tell them directly that they should not drive? I am worried they will not listen to me.' Many doctors are willing to write a prescription that says 'Do not drive' on a prescription pad, which can be a powerful reminder at home.

  • The Driving Rehabilitation Specialist Referral

    If you want an objective, professional assessment, find a driving rehabilitation specialist through the Association for Driving Rehabilitation Specialists (ADRS). These specialists are often occupational therapists who can conduct a driving simulator test or an on-road evaluation. The results are evidence-based and can help your loved one accept the need to stop driving. You can often schedule this directly without a doctor's referral, but check with your insurance first.

  • The 'Kill Switch' or Car Removal Strategy

    If your loved one is determined to drive but is no longer safe, consider having a mechanic install a hidden kill switch that disables the car's ignition. Alternatively, move the car to a friend's garage or a storage unit and replace the keys with a non-functional set. This avoids daily arguments and keeps the car out of sight. Many caregivers in support groups have found this approach reduces anxiety and conflict.

  • The State Reporting Form

    If all else fails and your loved one continues to drive unsafely, you can report them to your state's Department of Motor Vehicles. Search online for 'report an unsafe driver [your state]' to find the form. You can submit it anonymously, and the DMV will investigate, which may include a driving test or license revocation. This is a last resort, but it can prevent a tragedy.

  • The Conversation Script for Stopping Driving

    When the time comes to talk about stopping, use this approach: (1) Validate their feelings: 'I know driving means so much to you, and I am not trying to take away your freedom.' (2) State your concern: 'I am worried about your safety and the safety of others on the road.' (3) Offer a solution together: 'Let's figure out how you can still get to your appointments and see your friends. Would you like to try rides from family, or should we look into a ride-sharing service?' (4) Be patient—this conversation may need to happen multiple times.

Discuss with your clinician

Ask the doctor: 'What specific cognitive tests can you do to assess my loved one's driving safety? Is there a brief screening you can perform during the next visit?'

Discuss with the clinician: 'Are there any medications my loved one is taking that could impair their driving ability, such as sedatives, sleep aids, or medications for Parkinson's? Should we adjust the timing or dosage?'

Ask the doctor: 'If my loved one refuses to stop driving, can you write a prescription or a formal letter stating they should not drive? Will that have legal weight in our state?'

Discuss with the clinician: 'My loved one has [specific condition, e.g., Lewy body dementia or visual hallucinations]. How does this affect their driving risk compared to other types of dementia?'

Ask the doctor: 'Are there any driving rehabilitation specialists you recommend in our area? Can you provide a referral for a formal driving evaluation?'

Related guides

Sources