2019 Customer Service Index (CSI) Study
Porsche is Highest-Ranked Luxury Brand for First Time; Buick Ranks Highest among Mass Market Brands
Porsche (893) ranks highest in satisfaction with dealer service among luxury brands for the first time in the study’s 38-year history. Lexus (881) ranks second, followed by Cadillac (880), Infiniti (878) and Mercedes-Benz (870).
Buick ranks highest in satisfaction with dealer service among mass market brands for a third consecutive year, with a score of 857. MINI ranks second (853), followed by Mitsubishi (846), Chevrolet (845), GMC (840) and Toyota (840).
The 2019 U.S. CSI Study is based on responses from 57,286 owners and lessees of 2016 to 2018 model-year vehicles. The study was fielded from October through December 2018.