Last reviewed: November 2026. Toilet training advice comes from the children’s continence charity ERIC, Bladder & Bowel UK, NHS services and the American Academy of Pediatrics (AAP). Hygiene advice comes from the US Centers for Disease Control and Prevention (CDC). Road advice comes from the UK Highway Code. If your child has pain, constipation or frequent accidents, talk to a health professional.
“I need a wee.” “Now?” “NOW.” If you’ve driven with a newly potty-trained child, you know that conversation, and you know it’s usually on a motorway, three miles past the last services. It isn’t a disaster, and it’s rarely worth worrying about in advance. Young children have limited warning and limited capacity to hold on, and an unfamiliar routine makes accidents more likely. What helps is a small kit, a plan for stops, and a calm response when it all goes wrong anyway. This guide covers them all.
Quick answer
- Stop before they ask. Use every planned stop, and offer the toilet whether they say they need it or not.
- Bring a travel potty for lay-bys and places with no toilet, plus a bag kit for waste.
- Pack spare clothes, wipes and bags within an adult’s reach, not in the boot.
- Protect the car seat only in ways the seat’s maker allows. The AAP advises against products that aren’t approved by the seat’s manufacturer.
- Stop safely. On a motorway, keep going to the next services if you can. A child should never be out of their seat while the car is moving.
- Stay calm. Accidents aren’t deliberate, and a big reaction can make things harder.
Build the hygiene kit
Keep this in one bag next to an adult passenger, or at the very top of the boot if you are driving alone. Use your browser’s print button to print the list.
- ☐ Travel potty or folding seat, already practised at home
- ☐ Potty liners or strong plastic bags with absorbent pads
- ☐ Wipes and toilet paper
- ☐ Hand gel, plus soap if you have room
- ☐ 2 to 3 complete sets of clothes, including socks
- ☐ Spare shoes or sandals
- ☐ Nappy sacks or sealable bags for wet clothes
- ☐ A small towel and a change mat
- ☐ Disposable gloves
- ☐ A water bottle for rinsing
- ☐ A comfort toy, in case of tears
Our guide to portable travel potties and folding toilet seats explains how to choose a potty.
Step-by-step: before and during the drive
Before you leave
- Get used to other toilets. ERIC says children should get used to going in different places, such as nursery, friends’ houses and public toilets. Use a few before you go.
- Practise with the potty outside, or in the boot on a short trip, so it isn’t new on the day.
- Tell them what’s going to happen. Explain that the journey may be long, that you will stop, and to tell you as soon as they feel they need to go.
- Plan stops on your route, and look for service areas and towns you can reach. Note where there are long stretches with none.
- Ensure a toilet visit before you leave, even if they say they don’t need to go.
On the road
- Make regular stops, and use them. Offer the toilet, whatever they say. How often you stop will depend on your child.
- Ask often, and keep it light. Try, “Tell me when your tummy feels full.”
- Keep the drinks going. Don’t restrict drinks to avoid stops, especially in hot weather. Constipation is common in young children, according to Bladder & Bowel UK, and it can make toilet training harder.
- Dress for speed. Elasticated waists, no complicated buckles, and no tights or dungarees.
- Keep the potty easy to reach. Put it on top, not under the luggage.
What to do when there’s no toilet
This depends on your road and on how urgent the need is.
| Situation | What to do | What not to do |
|---|---|---|
| Motorway, can wait a few minutes | Stay calm, chat, sing and head for the next services | Stop on the hard shoulder for a toilet break |
| Motorway, can’t wait | Let the accident happen, and deal with it at the next safe stop. A seat can be cleaned | Undo the car seat while moving |
| Ordinary road | Find a safe place to pull in, off the road and away from traffic | Stop on a bend or block a gateway |
| Lay-by or car park | Use the travel potty on the side away from the traffic, or in the boot | Let them walk near moving cars |
| Countryside | Use the potty and bag up any waste, or follow local guidance for going outside | Leave bags, wipes or tissues behind |
| In a traffic jam | Wait, reassure them and keep them seated until you can stop safely | Take them out of their seat while the road may start moving |
The UK’s Highway Code says you must not stop on the hard shoulder except in an emergency. Having a child who needs a wee isn’t a reason to take that risk, and it’s far better to have an accident in the car seat. It can be helpful to agree this with the other adult before you set off, so that nobody makes a rushed decision.
Cleaning up after an accident
- Stop somewhere safe first. Don’t try to clean up while driving.
- Change your child. Remove wet clothes and wipe them clean. Be gentle and calm. A quick “It’s OK, these things happen” works better than a discussion.
- Bag it all. Put wet clothes in a sealed bag, keeping them apart from clean clothes.
- Clean the car seat following the manual. The AAP says to use only the manufacturer’s cleaning directions, and notes that cleaning without disinfecting is usually best, because disinfectants may reduce the protection that a seat and harness provide. Many harness straps shouldn’t be machine-washed or soaked. Read your own manual before you need it.
- Dry as much as you can. Use a towel and let the air in. A damp cover makes for an unhappy passenger. Follow your manual’s guidance about refitting the cover.
- Wash your hands. Use soap and water whenever you can. The CDC says hand sanitiser isn’t a substitute for handwashing. Use gel as a stopgap.
- Do the washing later. After a poo accident or illness, wash the clothes separately as hot as the fabric allows, as described in our guide to washing baby clothes when you’re away.
As for seat protectors, the AAP says to use extra products only if they came with the seat, or are approved by the seat’s manufacturer. Padding under or behind a child can affect how the seat works. Check your seat’s maker for approved options before you buy one, and read our guide to travel car seats.
By age and stage
| Stage | What helps | What to expect |
|---|---|---|
| Under about a month into training | Consider delaying a long drive, if you can; keep trips short; bring the home potty | Limited warning, frequent stops |
| Trained at home, not out and about | Practise outside the home; use the potty you know | Reluctance to use new toilets |
| Confident in the day, not at night | Plan for naps in the car | Accidents during car naps |
| Older preschoolers | Teach them to spot when they need to go; give them more warning of stops | “I don’t need to” followed by “I do” |
Should you use a pull-up or a nappy for the drive? ERIC and NHS services note that going back and forth can be confusing, but it’s your family’s decision. Some parents use one for naps or very long stretches, and explain that it’s just for the journey. If it keeps the whole family calmer, that may be a fair trade-off, as long as you pick it up again once you arrive.
Keeping calm
Children’s continence guidance is consistent: accidents aren’t deliberate. UK guidance notes that frustration should be avoided, and that a big reaction can unintentionally reinforce the behaviour. It may help to remember that a holiday is a big change, so it’s normal for things to slip. HealthyChildren.org, the AAP’s site for parents, lists changes such as moves and new childcare as common triggers for regression. It also suggests talking to your doctor if the reason isn’t clear, because physical causes such as constipation or a urinary infection can be behind it.
Common mistakes and real-world scenarios
- Believing “I don’t need to go”. Offer a toilet at every stop anyway, and make it routine, not a fight.
- Waiting for the next services, then the next. Don’t miss a stop on the hope of something better.
- Packing the potty under the luggage. It’ll stay there when you need it.
- Getting into arguments in a lay-by. If a child refuses, try again at the next stop, with no pressure.
- Using strong chemicals on the car seat. Follow the maker’s instructions.
- Leaving your child in the car while you deal with the mess. The US National Highway Traffic Safety Administration says never to leave a child alone in a car, even briefly.
- Going in the open without thinking. Leave nothing behind, and be considerate. Bag up waste.
Shopping by category
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Next steps
Read our road trip packing list and long car journeys with kids.
Frequently asked questions
Can you stop on the hard shoulder for a toilet emergency?
The UK Highway Code says you must not stop on the hard shoulder except in an emergency. Keep going to the next services, and accept that an accident can be cleaned up.
Should I use a pull-up on a road trip?
It's your decision. Continence guidance notes that going back and forth can be confusing, but some parents use them for naps or long stretches. Explain it clearly, and return to normal once you arrive.
How often should we stop?
It depends on your child. Use every stop you make for a toilet visit, and offer it whether they think they need it or not.
How do I clean a car seat after an accident?
Follow the seat's manual. The AAP says to use only the manufacturer's cleaning directions, as disinfectants may reduce the protection the seat offers.
My child won't use public toilets. What can I do?
Practise before you go, bring a familiar potty, and try covering auto-flush sensors with a sticker. Ear defenders can help with noisy dryers and flushes.
