Technology in cars is pretty darn terrific. Well, it is, until it all goes spectacularly wrong.
How often does that happen? Rather more frequently than you may imagine â€“ in the US, for instance, some 632 recall campaigns were announced in the 365 days that made up 2013, covering a total of 22 million vehicles (including trucks, bikes and buses). Of course, a large chunk of these were relatively minor issues.
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But when major components do fail, the result is a rather worrying compromise in safety. These vehicle recalls often end up costing automakers huge dollops of cash, at best proving a nasty inconvenience for consumers and at worst a loss of human life.
So, have a gander at our collection of the eight biggest automotive recalls in history.
1. Ford: 21 million vehicles
Twenty-one million is rather a large number of vehicles by todayâ€
The problem? A tendency for the vehicle to move despite the automatic transmission being firmly in the â€œparkâ€ position. According to a consumer advocacy group, the glitch resulted in just short of 100 human deaths. Thing is, Ford got away with sending notices to the owners informing them of the issue, rather than actually repairing the fault free of charge. Chances of that happening today? Virtually zero.
2. Ford: 15 million vehicles
Cruise control is rather handy out on the open road. Itâ€
In all, there were seven recalls issued from 1999 to 2009, with a variety of models â€“ including SUVs and pickup trucks â€“ being affected. Why did the recall include so many types of vehicles across so many years? Well, Ford allegedly continued to use the dodgy switches despite having received more than 100 complaints during the initial investigation in 1999. Naughty, naughty.
3. Ford: 7.9 million vehicles
The Thunderbird. The Mustang. The Lincoln Town Car. All celebrated models produced by Ford between 1988 and 1993. And all capable of catching alight even after being parked for hours.
An ignition short circuit had the potential to cause overheating in these and many more Fords, which in turn could end in a fire in the steering column, resulting in ruined automobiles and even damage to garages and houses. Ford issued the recall in 1996, replacing the ignition switch in affected vehicles. The company also eventually paid a fine, but class actions filed against it were ultimately unsuccessful.
4. General Motors: 6.7 million vehicles
General Motors said that this 1971 recall â€“ which included 12 different models built between 1965 and 1970 â€“ wasnâ€
So, what was the issue? A dodgy engine mount apparently allowed the engine to lift, which in turn could result in a jammed-open accelerator. If you ask us, thatâ€
5. General Motors: 5.8 million vehicles
Fracturing of bolts. Sounds horrid, doesnâ€
According to reports, GM received word of 27 accidents (and 22 resulting injuries) caused by this issue. And the company moved swiftly to replace the suspect bolts free of charge, exactly as they should have.
6. Toyota: 5.7 million vehicles
Models affected included the Toyota Camry, Toyota Corolla, Toyota Prius, Lexus ES 350 and many more. This floor mat recall, it must be noted, was entirely separate to the notorious â€œsticky throttleâ€ issue also affecting a wide range of Toyota vehicles. The fix? Replacement of the offending mats and modification/replacement of the accelerator pedal itself.
7. Ford: 4.1 million vehicles
When it comes to safety, seatbelts are the brave soldiers on the front line. So it must have been pretty alarming when grommets in Fordâ€
The affected vehicles â€“ which all rolled off the production line in 1970 and 1971 â€“ were called in, and the grommet was replaced by a long-lasting neoprene component. Job done.
8. Volkswagen, General Motors and Honda (each 3.7 million vehicles)
The final spot on our list is shared between three manufacturers. The first incident involved German manufacturer Volkswagen and covered vehicles (mostly Beetle models) bolted together between 1949 and 1969. The 1972 recall came about thanks to a windscreen wiper screw that developed a nasty tendency to loosen itself â€“ rendering the wipers utterly useless in inclement weather.
Then, in 1973, GM recalled cars from four of its marques after it became apparent that stones could enter the engine bay and hinder steering. The solution? A simple gravel shield was installed over the steering coupling.
In 1995, Honda issued a recall on many of its vehicles built between 1986 and 1991 after finding that its seatbelt buckle assemblies were prone to failure. Takata Corporation made the dodgy plastic parts, which meant automakers other than Honda were also affected â€“ albeit not quite on the same scale.
Image: puuikibeach (via Flickr).