control arm / tension strut / thrust arm / lateral link
12
alternator
12
coolant reservoir / expansion tank
10
engine seal / gasket, other or unspecified or unknown (oil leak)
10
horn
10
ignition switch / key cylinder
10
strut (suspension)
10
trunk or tailgate struts
10
window motor
5 10 15 20 25 30 35 40 45 50
Chart is based on 846 vehicles in TrueDelta's reliability survey.
These are the problems owners most commonly reported on TrueDelta's Car Reliability Survey. For many models not all entries have been coded yet, so focus on the relative numbers rather than the absolute numbers.
Usually when people say "they all have this problem," the problem in question actually affects between 10 percent and 20 percent of all cars.
We aren't counting wear items like brake pads and rotors that truly do require periodic replacement on all cars.