NHTSA complaint #11574513

Owner complaint summary

My Santa Fe developed difficulty starting beginning the afternoon of February 18. While waiting in stop-and-go traffic to park for a sporting event, the ISG (idle stop-and-go) activated at least 40 times. After at least the 40th time, the Santa Fe did not turn back on. After about 10 minutes, I was able to start it. This happened while I was stuck in very heavy traffic exiting the freeway. After that, it would always take multiple attempts to start the car even though the battery had more than enough power to turn over the starter. After a couple of days of dealing with this, I took the Santa Fe to my local Hyundai dealer. After diagnostics, they were able to reproduce the problem and they determined that the starter had developed an intermittent short which was likely caused by the multiple ISG activations on Sunday, 2/18/2024. While they verbally agreed with me that repeated activation of the ISG was the likely cause of the starter short, they wouldn't put that in the written service statement. At the time of this problem, my Santa Fe was 1,887 miles past the 5-year 60,000 mile bumper-to-bumper warranty. I had purchased the Santa Fe a few months ago as certified pre-owned with about 58,500 miles on it so, even though being the 2nd owner, I retained the remainder of the bumper-to-bumper warranty as well as the 10 year 100,000 engine/drivetrain/transmission warranty. Oddly enough the starter, which is attached to the engine is categorized as part of the car's electrical system instead of as part of the engine so the starter replacement wasn't covered. I appealed to the dealer for a discount of some kind. They declined. They claimed to have called Hyundai USA which also supposedly said no to covering the cost of the new starter. A quick Google search for this problem revealed other owners of Santa Fes with the ISG have had the same exact issue.