With the release of our 2017 CarMD® Vehicle Health Index^™ Make & Model Reliability Rankings, we at CarMD® continue to strive toward excellence and innovation in the automotive repair solutions industry. We offer the only annual manufacturer and vehicle ranking system that statistically compares check engine failures and repair costs. While other industry reports often rely on subjective survey data, we base our figures on statistical analyses. This Index looks at the population of 1996 to current model year vehicles on the road, which is more comprehensive than many first-year owner surveys and studies.

Highlights

At least 10 percent of the cars and trucks on the road in the U.S. have a check engine light on at any given time, so chances are good that most vehicle owners will experience the hassle of needing a check engine light-related repair at some point. But which brands are least likely to need check engine repairs? To rank these brands, CarMD developed a formula that accounts for those with the lowest percentage of repair incidents per percentage of vehicle population. Based on this data, an Index frequency score is assigned. The lower the score the higher the vehicle make ranking.

CarMD found that over the past year when it comes to repair frequency Acura ranks no. 1, with a 1.40 CarMD Index frequency score. Acura is followed by Honda, which ranks no. 2 on the list for the second consecutive year. Toyota ranks no. 3 this year, down from its ranking in the top spot in 2016. Rounding out the top five brands least likely to need check engine light repairs are Mercedes and Mitsubishi.

*The lower the Index frequency score, the higher the ranking.

(Top 10 vehicle makes by repair frequency based on model year 1996-2017 vehicles inspected between Oct. 1, 2016 and Sept. 30, 2017, and determined to have the fewest percentage of CarMD repair incidents, per vehicle population. Sources: CarMD.com Corp., with vehicle population data provided by R.L. Polk. )

Any given brand can have a mix of very reliable vehicles along with some that are inherently known to have more frequent issues. For this reason, our Index drills down to rank vehicles by year, make and model. Three Toyotas, two Fords, two Hondas, one Jeep, one Nissan and one RAM truck comprise this list of 10 vehicles with the lowest check engine light-related repair frequency among the 8,900 different model year 1996 to 2017 vehicles on the road over the past year.

Cars and trucks will need repairs from time to time. Of the 4.2 million vehicles analyzed by CarMD for needing repairs this past year, which makes cost their owners the least? CarMD found that the brand with the lowest average check engine light-related repair cost again this year was Hyundai at an average cost of $306, which is nearly 4 percent less than last year. Mazda ($310) remained the brand with the second lowest repair cost, and Kia ($317) retained its third-place ranking. Chrysler and Dodge rounded out the top five, ranking fourth and fifth respectively. New to the list this year are Infiniti and Volkswagen, which debut at no. 6 and no. 9 respectively.

(Top 10 vehicle manufacturers based on model year 1996-2017 vehicles inspected by CarMD’s network, found to need repairs and receiving parts and labor estimates between Oct. 1, 2016 and Sept. 30, 2017.)

When the check engine light comes on, here is the list of the 10 vehicles with the lowest average repair cost among the 8,900 different year, make and model vehicles on the road today. Many drivers are surprised to learn that a loose, damage or missing gas cap is one of the most common check engine light triggers. Vehicles that have a high percentage of finicky gas caps often have lower average repair costs, but spend time getting it diagnosed nonetheless.

The following is a list of the top three vehicles by category using data reported from Oct. 1, 2016 through Sept. 30, 2017, according to CarMD, which based its ranking on the vehicles with the fewest and those with the lowest cost check engine-related problems reported by or to our network:

Stats

By ranking vehicles