Mazda, Hyundai Excel with Lowest Repair Costs
Mazda, Hyundai, Toyota, and Audi have received top marks for reliability and a low cost for repairs, according to data from automotive repair data and diagnostic solutions provider CarMD.com Corp. The findings came in the 2018 CarMD Vehicle Health Index Make and Model Reliability Rankings.

The 2017 Hyundai Tucson (shown) recorded the lowest average repair cost of $67.
Photo courtesy of Hyundai.
Mazda, Hyundai, Toyota, and Audi have received top marks for reliability and a low cost for repairs, according to data from automotive repair data and diagnostic solutions provider CarMD.com Corp. The findings came in the 2018 CarMD Vehicle Health Index Make and Model Reliability Rankings.
Toyota was the brand least likely to need check engine repairs over the past year, edging out Acura and Hyundai, which rank No. 2 and No. 3 respectively. Mazda, which ranked second last year, is now the brand with the lowest average repair cost ($286), followed by Kia ($320), Dodge ($326) and Hyundai ($328). Honda and Toyota are the only two brands to rank in the top 10 on both lists.
The 2016 Audi Q5 is least likely to need a check engine light-related repair. The 2017 Hyundai Tucson costs the least on average ($67) to repair when the light is on, with a loose gas cap or an improperly installed intake air duct the two most common reasons the Tucson's check engine light illuminates.
Published annually since 2011, CarMD's index analyzes check engine repairs and costs to rank the 10 brands and 100 vehicles least likely to have a check engine light on. The report also ranks 10 makes and 100 vehicles with the lowest average repair costs and the top three vehicles by category. CarMD analyzed data from over 5.6 million in-use vehicles, model year 1996 to 2018, reporting check engine health from Oct. 1, 2017, to Sept. 30, 2018.
"The CarMD Vehicle Health Index Make and Model Reliability Ranking is the only report that statistically measures check engine failures and repair costs," said David Rich, CarMD's technical director. "Understanding which makes and models have which kinds of problems, how frequently they occur and what those repairs cost can be useful to vehicle owners, used car buyers, as well as repair professionals looking to increase their knowledge of trends within the industry."
Brands and vehicles highlighted on this year's list include:
Brand with lowest average repair cost: Mazda ($286)
Vehicle with lowest average repair cost: 2017 Hyundai Tucson ($67)
Most reliable brand: Toyota
Most reliable vehicle: 2016 Audi Q5
More Maintenance

Turning Connected Vehicle Data Into Decisions That Matter
Fleet leaders have more data than ever, but turning that data into clear, actionable decisions remains a challenge. This white paper shows how leading organizations are using connected vehicle data to improve safety, reduce costs, and optimize fleet performance. Learn how to turn insight into action across your fleet.
Read More →Are You Tracking Your Fleet's True Total Cost of Ownership?
Bobit Business Media surveyed 190 fleet professionals and found that while most fleets are tracking costs, fragmented systems and data gaps are keeping true TCO visibility out of reach. With rising pressure to control spend in an increasingly volatile environment, the gap between what fleets think they know and what the data actually shows is wider than you might expect. See how your peers are managing costs today and where the industry still has room to improve.
Read More →
From Marine Corps Motor Pool to Managing 460 Fleet Vehicles
Cesar Ayala of O’Connell Landscape Maintenance shares how he transitioned from the Marine Corps to managing a 460-vehicle fleet—and the real-world challenges of maintenance, compliance, and driver management in California.
Read More →
If Repair Delays Are the New Normal, How Should Fleets Respond?
The repair crisis gets blamed on technician shortages and parts delays. But a big part of the problem is what's happening before the vehicle even reaches the shop, and that's within your control.
Read More →
Safety by Design: Power and Protection in the Freightliner 114SD Plus
Fleet managers are under pressure to reduce accidents, control costs, and improve operational efficiency. See how advanced vehicle safety technologies are helping fleets operate smarter and safer.
Read More →
Bosch to Acquire AI Predictive Maintenance Startup Uptake Technologies
The deal brings Uptake's fleet diagnostics platform into Bosch's ecosystem, combining predictive analytics with Bosch's telematics infrastructure to help fleets reduce downtime and anticipate component failures.
Read More →
It’s here: The 2026 Fleet Technology Trends Report
What does AI mean for fleets? Get the answer — and learn other top tech trends.
Read More →
AI Emerging As Must-Have Fleet Technology
Within the next six to 12 months, artificial intelligence programs designed specifically for smaller operations will become more affordable, intuitive, and integrated.
Read More →
Labor, Parts, and Price: What’s Powering Fleet Maintenance Costs in 2025
Five quarters of data on the six most common maintenance activities reveal how cost composition and labor intensity influence fleet service trends.
Read More →
How Fleet Managers Are Finding New Ways to Control Maintenance Costs & Downtime
By standardizing repair workflows and building trusted vendor networks, fleets are cutting costs and keeping vehicles on the road.
Read More →