Press Release

While Problems Have Improved Overall, The Number of Problems Related to New Technology Has Increased

Toyota and Nissan Each Receive Two Model-Level Awards in Their Respective Segments; Toyota Ranks Highest among Nameplates

Tokyo: 27 August 2015 ― Overall, the number of customer-reported problems has decreased from 2014; however, the number of problems related to new technology, such as navigation systems, voice recognition and Bluetooth, has increased, according to the J.D. Power Asia Pacific 2015 Japan Initial Quality StudySM (IQS) released today.

J.D. Power’s initial quality studies are conducted globally and serve as the industry benchmark for new-vehicle quality. The Japan IQS, now in its fifth year, was redesigned in 2014 to more effectively measure problems related to technologies and features being offered.

The study measures new-vehicle quality in the first two to nine months of ownership. Vehicle quality is evaluated by owners across 233 problem areas in eight categories: vehicle exterior; driving experience; audio/communication/ entertainment/navigation (ACEN); features/controls/ displays; seats; heating, ventilation and air conditioning (HVAC); vehicle interior; and engine/transmission. All problems are summarized as the number of reported problems per 100 vehicles (PP100), with lower scores reflecting higher quality performance.

Overall initial quality averages 80 PP100 in 2015, with four fewer problems than in 2014. By category, the overall improvement is driven by engine/ transmission (down 2.4 PP100), seats (-1.4) and driving experience (-1.1). The only category with an increase in problems from 2014 is ACEN (up 1.1 PP100).

The study finds that more than 80 percent of vehicles are equipped with a navigation system (up 3% from 2014); 60 percent have Bluetooth connectivity (up 8% from 2014); and 31 percent have voice recognition (up 6% from 2014). The growing percentage of vehicles with such features has an influence on the increase in the number of ACEN problems reported.

“While there has been an overall improvement in quality for most categories in the study, ACEN is a challenge for vehicle manufacturers, as it is the category with the second-highest number of reported problems this year, following vehicle interior,” said Atsushi Kawahashi, senior director of the automotive division at J.D. Power Asia Pacific. “As the adoption of smartphone and other media device systems increases in Japan, it is very important for automakers to understand users’ needs to help them improve customer satisfaction with ACEN systems. As preventative accident/safety systems gain importance, automakers will need to improve satisfaction with the features/controls/displays related to these systems. By improving the quality of these technologies and the user experience, vehicle manufacturers are more likely to increase customer satisfaction and brand loyalty.”

Problems in the engine/ transmission category have declined from 2014, when they were the second most frequently reported problems. This has largely contributed to the improvement in the mini-car and compact segments. This problem category has a large impact on fuel efficiency, which was one of the most frequently reported problems in 2014.

Quality by Segment:

  • Mini-car segment

Overall initial quality averages 73 PP100, an improvement of 4 PP100 from 2014. Engine/ Transmission (-3.5 PP100) and HVAC (-2.0) contribute to this improvement. However, the number of problems reported in the ACEN category has increased by 1.7 PP100.

  • Compact segment

Overall initial quality averages 83 PP100, an improvement of 3 PP100 from 2014. This improvement is driven by the engine/ transmission (-3.4 PP100), driving experience (-2.4) and seats (-2.3) categories, which cumulatively equates to 8.1 PP100 fewer problems. Despite the improvement in those three categories, more problems are reported in the other categories year over year, which has resulted in an overall improvement of only 3 PP100.

  • Midsize segment

Overall initial quality averages 88 PP100, an improvement of 6 PP100 from 2014. This improvement is driven by vehicle interior (-2.7 PP100), seats (-2.5) and features/controls/ displays (-2.4). However, the number of problems reported in the other categories—including vehicle exterior—has increased by 0.5 PP100 in each category.

  • Minivan segment

Overall initial quality averages 81 PP100, an improvement of 5 PP100 from 2014 that is driven by five categories: seats (-2.5 PP100), engine/ transmission (-1.8), driving experience (-1.4), features/ controls/ displays (-1.2) and vehicle interior (-0.8). The number of problems reported for vehicle exterior, ACEN and HVAC has increased by 1.0 PP100 in each category.

  • Large segment[1]

Overall initial quality averages 82 PP100, an improvement of 7 PP100 from 2014. This improvement is driven by seats (-2.6 PP100), ACEN (-2.3) and vehicle exterior (-1.5). However, problems are frequently reported for features/controls/displays, increasing by 1.2 PP100 from 2014.

2015 Ranking Highlights

Toyota ranks highest, averaging 69 PP100. Toyota is followed by Suzuki (71 PP100) and Daihatsu
(78 PP100).

Rankings in the four vehicle segments are:

  • Mini-car segment: Nissan Moco ranks highest, followed by Suzuki Lapin and Daihatsu Mira e:s
  • Compact segment: Toyota AQUA ranks highest, followed by Toyota Vitz and Toyota Ractis
  • Midsize segment: Nissan Leaf ranks highest, followed by Toyota Corolla and Toyota SAI
  • Minivan segment: Toyota Vellfire ranks highest, followed by Honda Freed and Toyota Esquire

The 2015 Japan Initial Quality Study is based on responses from 18,649 purchasers of new vehicles in the first two to nine months of ownership. The study, which includes 16 automotive brands and 121 models, ranks models with a sample size of 100 or more usable questionnaire returns. The study was fielded May through June 2015.

About J.D. Power Asia Pacific

J.D. Power Asia Pacific has offices in Tokyo, Singapore, Beijing, Shanghai and Bangkok that conduct customer satisfaction research and provide consulting services in the automotive, information

technology and finance industries. Together, the five offices bring the language of customer satisfaction to consumers and businesses in Australia, China, India, Indonesia, Japan, Malaysia, Philippines, Taiwan, Thailand and Vietnam. Information regarding J.D. Power Asia Pacific and its products can be accessed through the Internet at

About McGraw Hill Financial 

Media Relations Contacts

Shizue Hidaka; J.D. Power Asia Pacific; Metro City Kamiyacho 8F; 5-1-5 Toranomon; Minato-ku, Tokyo; Japan 105-0001; Phone +81-3-4550-8060;

John Tews; Director, Media Relations; J.D. Power; 320 E. Big Beaver; 5th Floor, Suite 500, Troy, MI, 48083 USA; 001 248-680-6218;

No advertising or other promotional use can be made of the information in this release without the express prior written consent of J.D. Power.

[1] No official rankings are published due to an insufficient number of models.