Compare Ford S-Max immobiliser fault repair quotes from specialist garages

Ford was the first carmaker to introduce a vehicle assembly line, speeding up the process of production and bringing cars to more people than ever before. The brand's motorsport credentials are equally impressive. In the 1966 24 Hours of Le Mans race, Ford ended Ferrari's six-year winning streak, beating the likes of Porsche and Lamborghini to the title with an ever-popular GT40.

Jim Morrison, the lead singer of rock band The Doors, famously adored his 1967 Ford Shelby GT500, the only car he ever owned. It is a mystery to this day where the vehicle ended up after his death.

Find out the average price of a Ford service or MOT here, or read this guide to see how Ford's maintenance costs compare with Vauxhall and Volkswagen.

An immobiliser is a security device that prevents a vehicle from starting without the correct key fob. It usually disables two of the following: the fuel system, ignition or starter motor.

If you're having trouble unlocking or starting your car, you can't turn the car key, or the alarm is going off, you may need to call a car immobiliser specialist. However, check the battery in your key fob first, especially if you can't lock/unlock your car, as this is the most common cause of immobiliser issues.

Other potential causes include damaged wiring, faulty actuators or sensors, damaged receiver rings, and a faulty ECU, all of which require a car immobiliser fault repair.

Fortunately, car locksmiths usually offer mobile immobiliser repair, so you don't need to go to a garage, and they can add or remove keys from the immobiliser system if there is a problem with the coding.