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What 8 owners told NHTSA about the 2012 Hyundai Equus
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
1 of 8 complaints match · Electrical system · clear filters
Jul 6, 2026Transmission & drivetrainElectrical systemEngine
I was driving on the highway and my transmission due to a failed transmission service done to my vehicle caused my vehicle’s transmission to overheat a blowout my transmission cooler and mix coolant and transmission fluid unknown to me because of a clogged transmission cooler line improperly flushed instead of replaced by the Patrick Hyundai dealership there could’ve been and electrical fire or a crash due to these things.
NHTSA ODI 11748611
Working with the data? Download all 8 complaints as CSV · fetched from NHTSA July 26, 2026
How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your
pre-purchase inspection list. Back to the
full 2012 Hyundai Equus verdict →