No matter how well they're made, vehicles will have design or manufacturing problems.
And when the government thinks a problem is really serious for people, they require the manufacturer to issue a recall notice and fix the car free of charge. The manufacturer then tries to contact everyone who owns that type of car to get the recall work done.
These recalls always affect safety, so take them seriously. It's easy to see if a vehicle's being recalled. The government has information at http://recalls.gov/nhtsa.html.
Recalls are serious, but not all that common. But sometimes there are less significant issues, and for these, manufacturers issue a Technical Service Bulletin, or TSB, that tells service centers like Kacal's Auto and Truck Service how to repair a frequent or difficult problem.
The pros get updated information through subscription plans, also available in consumer versions for a reasonable cost.
So when vehicle recalls occur, get the work done, and keep you and yours safe.