Breakdowns can happen to any driver, often without warning. Whether it’s a flat battery, a puncture, or a more complex mechanical issue, knowing what to expect (and what to do next) can make a stressful situation far more manageable.
This guide explains the most common causes of breakdowns, what to do if they happen, and how services from providers such as The AA typically work in practice.

What causes most car breakdowns?
The most common causes of breakdowns include flat or ageing batteries, tyre damage, engine or mechanical faults, electrical issues and running out of fuel. Dashboard warning lights often signal early-stage problems that shouldn’t be ignored.
According to The AA, many breakdowns are the result of gradual wear and tear, issues that can often be identified and resolved early through regular servicing, maintenance and repair (SMR). Proactive upkeep plays a key role in preventing avoidable incidents.
Are breakdowns more common in certain situations?
Breakdowns are more likely to occur:
- During colder months, when batteries are under more strain
- On longer journeys, where sustained driving exposes underlying issues
- In stop-start traffic, which can increase wear on certain components
- When vehicles are used infrequently or only for short trips
Electric vehicles and petrol/diesel cars can experience different types of faults, but many core issues (for example tyres and 12V batteries) will cause issues for all vehicle types.
What should you do if your vehicle breaks down?
If possible, move your vehicle to a safe location, such as the left-hand side of the road, a lay-by or an emergency refuge area. Turn on your hazard lights immediately, angle your wheels away from traffic and exit the vehicle safely via the left-hand door.
Once in a safe place, contact your breakdown provider. The AA advises waiting well clear of traffic (ideally behind a safety barrier or on higher ground) and ensuring all passengers and animals are kept safe.
If the vehicle cannot be repaired at the roadside, The AA can recover you, your car and passengers to a single destination anywhere in the UK, depending on your level of cover. Carrying essentials like a torch, phone charger and warm clothing can make waiting safer and more comfortable.
What happens after you call for breakdown assistance?
Once you’ve reported a breakdown:
- Your location is confirmed (often automatically via app)
- A patrol is assigned based on proximity and availability
- You may receive updates on estimated arrival time
- The patrol assesses whether the vehicle can be repaired roadside
In many cases, issues are resolved without the need for recovery (the AA states that it fixes 4 out of 5 cars at the roadside) and if not, arrangements are made to transport the vehicle to a suitable destination.
Who should you contact for roadside assistance?
The AA offer 24/7 nationwide breakdown support. Their patrols handle a wide range of issues, including flat batteries, punctures and misfuelling, and can arrange recovery if needed.
Breakdowns can be reported via phone or a mobile app. Using an app can help patrols locate you more quickly, which is especially useful in poor visibility, bad weather or remote areas.
Can The AA repair your car at the roadside?
In many cases, yes. AA patrols carry specialist tools and commonly required parts, enabling them to fix a high proportion of faults on the spot.
If a repair isn’t possible, the vehicle will be recovered to a suitable destination based on your policy. Staying on top of regular maintenance significantly improves the chances of a successful roadside repair.
What happens if your car can’t be fixed?
If a fault cannot be resolved at the roadside, recovery is arranged. This typically involves:
- Transporting the vehicle on a recovery truck
- Taking it to your home, a garage, or another agreed location
- Supporting onward travel depending on your level of cover
The exact outcome depends on the type of breakdown, your location, and the terms of your policy.
What is family breakdown cover?
Family breakdown cover is designed to cover multiple people living at the same address under a single policy. Depending on the level of cover, it can apply whether the named person is driving their own vehicle or travelling in someone else’s.
For households with multiple drivers, family breakdown cover can offer a more convenient and potentially more cost-effective alternative to arranging separate policies. Providers such as The AA offer different levels of family breakdown cover, including options that can include roadside assistance, home start and national recovery.
Do you need breakdown cover?
Breakdown cover isn’t a legal requirement, but it provides reassurance and practical support if you are going on longer journeys or have an older car. The AA offers a range of cover options, from basic roadside assistance to more comprehensive packages including home start, national recovery and onward travel.
How can you reduce the risk of a breakdown?
Simple preventative checks can make a significant difference. Regularly monitor fluid levels, tyre condition and pressure, battery health, lights and fuel levels. Addressing warning signs early helps prevent more serious faults.
The AA recommends booking routine servicing and maintenance inspections, particularly before long journeys, to identify worn components and potential issues. Occasional longer drives can also help maintain battery charge, especially for vehicles mainly used for short trips.
Consistent maintenance and preparation are the most effective ways to minimise the risk of a breakdown.
FAQs
What is the most common cause of a car breakdown?
Flat or ageing batteries are among the most frequent causes, followed by tyre issues and electrical faults.
Can most breakdowns be fixed at the roadside?
Many can, particularly minor faults. More complex issues may require recovery to a garage or home.
How long does it take for breakdown assistance to arrive?
Arrival times vary depending on location and demand, but providers aim to reach drivers as quickly as possible.
Is breakdown cover worth having?
For many drivers, it provides peace of mind and practical support, especially on longer journeys or in unfamiliar areas.

John is the Editor and Spokesperson for Electric Car Guide.
With over 20 years of writing experience, he has written for titles such as City AM, FE News and NerdWallet.com, covering various automotive and personal finance topics.
John’s market commentary has been covered by the likes of The Express, The Independent, Yahoo Finance and The Evening Standard.


