The most deteriorated car brand

We search our database for car brands that have the worst trend in reliability improvement. Toyota came out on top of our list.

Drastic increase in total number of problems reported

Table 1 shows the total number of problems reported for all models of Toyota vehicles built from 1996 to 2018. Notice that the problems reported have increased greatly from 2000 to 2010.

Most deteriorated in new car reliability

In order to better compare reliability across production years, we use the number of problems reported during the vehicles first year in service. The result for Toyota brand vehicles is show in Table 2. Table 2 shows the number of problems in the first service year of Toyota vehicles built from 1996 to 2018. Notice that in recent years the new car reliability of Toyota vehicles has deteriorated greatly.

Check out other articles about car brands and models that have made the most progress (or most deteriorated):

The most improved car brand
The most improved car model
The most deteriorated car brand
The most deteriorated car model