Preparing a car for a long UK journey

A long trip exposes small problems that a short commute can hide. Before setting off, check tyres, lights, fluids, wipers, fuel or charge, MOT, insurance, breakdown cover, route restrictions and weather. A checklist takes less time than waiting on a hard shoulder, especially when travelling with children, pets or a full load.

This guide is general preparation, not a mechanical inspection. Do not drive a car that is unsafe or showing a serious warning.

Check the car while it is parked

Walk around the vehicle in good light. Look at tyres, sidewalls, wheels, glass, lights, mirrors, number plates, leaks and body damage. Check pressures cold using the manufacturer’s figures and inspect the tread across the width. Make sure the spare or repair kit, jack and locking-wheel-nut key are present.

Test headlights, brake lights, indicators, hazards, fog lights, horn, washers and wipers. Top up fluids according to the handbook and check oil only as instructed. Do not open a hot coolant system.

Check fuel or charge and plan a reserve. For an EV, confirm cable, apps, charging cards, route chargers and a backup location. Rapid chargers can be busy or unavailable.

Documents and roadside cover

Check MOT date, tax, insurance, breakdown membership, driving licence and any finance or rental terms. Save emergency numbers offline. For a cross-border trip, check the destination’s driving, insurance and equipment requirements.

Keep warning-triangle or safety equipment required for your vehicle and route. Secure luggage and do not overload the car. Confirm roof boxes, bikes and trailers are within approved limits.

Route and driving

Map fuel or charging stops, rest areas, traffic, roadworks, low bridges, Clean Air Zones and parking. A route through a city may create a charge; use GOV.UK and local authority information. Do not rely on a sat-nav route that has not been checked for vehicle restrictions.

Plan breaks and share driving only with an insured, permitted driver. Adjust speed and distance for weather, load, tiredness and visibility. The Highway Code remains the reference for safe road behaviour.

Interactive guide

Long-journey checklist

Complete the checks before leaving home.

Buying a car for frequent trips

Ask the dealer about motorway comfort, tyres, service intervals, warranty, breakdown cover and real-world fuel or energy consumption. For an EV, test charging and plan winter range. For a used car, request an independent inspection and read the MOT history.

Do not buy a larger car only for one annual holiday without comparing rental or other options. Count fuel, charging, insurance, parking and depreciation.

What to do if a warning appears

Stop safely when a warning indicates danger, overheating, loss of braking or a serious fault. Call breakdown assistance and follow their instructions. Do not clear a light just to continue. Record the message and time.

Use Car Dealer Finder to compare dealers and ask about aftersales support. A long journey begins with a car that is maintained, documented and planned for the route.

Make a route file

Write the start and destination, likely stops, traffic-sensitive sections, weather forecast and any Clean Air Zone or toll information. For an EV, record charger locations, opening or access restrictions, connector type, payment method and a backup stop. For a petrol or diesel car, do not wait for the fuel warning light; identify reliable places to refuel away from the busiest motorway section.

Save the breakdown provider’s number, insurance assistance details and the vehicle registration offline. If you are crossing a border, check the policy documents, driving requirements and equipment expected for the countries on the route. A phone with no signal or a flat battery should not remove access to the information you need.

Check the load and passengers

Distribute luggage so it cannot move into the passenger area or obscure visibility. Check roof boxes, bike racks, trailers and tow-ball loads against the car’s limits. Inflate tyres according to the loaded condition if the handbook gives a separate pressure. Secure pets using an appropriate restraint and leave access to the warning triangle or emergency equipment.

Plan breaks before leaving. Fatigue changes judgement even when the vehicle is mechanically sound. Share driving only with an insured and permitted driver. Do not use a rest stop to continue a journey that should have been cancelled because of severe weather or a warning light.

Prepare contingencies

Choose an alternative route if a charger, fuel station, bridge or urban zone is unavailable. Keep enough charge or fuel to reach the backup. A public charger may be occupied, offline or limited by the car’s charging speed, so allow time rather than planning the battery down to a single percentage point.

Keep a basic kit that matches the vehicle: high-visibility item, torch, screenwash, phone charger, tyre inflator or repair equipment if supplied, water and suitable clothing. Do not carry loose objects that can injure passengers. Check the handbook for towing, recovery points and instructions before an emergency occurs.

Record a problem correctly

If a warning appears, identify the symbol and message without guessing the cause. Reduce speed or stop when the handbook or safety situation requires it. Photograph the display, note the time, location, temperature and recent event, then contact the breakdown service or dealer. Do not erase a warning by disconnecting the battery or continue solely to protect a travel plan.

After the journey, note fuel or charging use, tyre damage, overheating, unusual noise and any delayed repair. Book follow-up work while the details are fresh. A route checklist is not a substitute for maintenance, but it turns a long trip into a series of checks that another driver can understand.

Use a simple departure sequence

The day before, check the route, weather, traffic, restrictions, charge or fuel and the opening status of your intended stops. On departure morning, walk around the car, check lights and glass, confirm tyre pressures and place the documents where the driver can reach them without searching. After loading, make a second check because the pressure setting and rear visibility may have changed.

During the trip, stop at the planned intervals even if the car appears fine. Stretch, hydrate and reassess the route if traffic or weather changes. For an EV, use a charger while you still have a comfortable reserve. For any car, do not treat a dashboard range estimate as a guarantee; wind, temperature, speed and load affect it.

If you are travelling with children or vulnerable passengers, identify accessible toilets, quiet rest areas and a way to contact assistance. Keep medication or essential personal items in the passenger area rather than under luggage, while following any instructions from the person who uses them. Do not leave people or animals unattended in a parked car.

On arrival, look for new tyre damage, leaks, warning messages or a hot smell. Record anything unusual before the details fade and arrange a check if it persists. The same notes can help a dealer distinguish a route-related issue from a pre-existing fault.

If the journey includes a ferry, tunnel or remote area, check booking times, height limits and assistance coverage in advance. Keep a margin for queues and do not plan to arrive at the last possible minute with no charge or fuel reserve.

Share the plan without sharing private data

Give another driver the registration, breakdown number, route, charger or fuel stops and the location of the vehicle documents. Do not send passwords, insurance login details or personal medical information in a group chat. If a booking is stored in an app, save the confirmation number and the official contact offline.

If plans change, update the person who is waiting for you and reassess the vehicle rather than rushing. A delayed departure is safer than driving tired, undercharged or with a warning light. Keep the final route, incident notes and receipts so a dealer or breakdown provider can understand what happened.

Use the checklist again after a ferry crossing, luggage change or long stop. Load, tyre pressure, visibility and remaining range may be different even when no fault has appeared.