The fuel range calculation is often very wrong in our plug in hybrid. This issue has been brought to the attention of the manufacturer and dealer with no results but pointing at the other organizations. With a full fuel tank the gasoline range should be about 387 miles. Often the computer will show 610 miles but sometimes has other ranges but has never been correct after the first fill up. While this normally isn't a big problem, there is a danger for some people. Say you see a sign on a curvy mountain road with no shoulders showing the next fuel is in 100 miles. If the car computer says you have a range of 150 miles, you would think you can easily make it to the next gas station. However, because of the computer error, you really only have a range of 95 miles. It is probable that you would run out of fuel, losing power steering and power brakes. Additionally you could end up stopped blocking the lane and causing a collision. This has been occurring for three years, ever since our first fill up of the gas tank.

Source: NHTSA complaint ODI #11757840 · view all complaints for this vehicle at nhtsa.gov

>>>>What component or system failed or malfunctioned, and is it available for inspection upon request? According to the Hyundai Bluelink app, the problem is caused by the battery management system, producing error code P0AA600. The result is that the vehicle does not get power to the wheels for a few seconds after giving it gas. It looks like the car is not moving, then it very slowly gains speed, followed by sudden acceleration. It is available for inspection upon request. >>>>How was your safety or the safety of others put at risk? It is a safety issue because other vehicles on the road may not be able to stop in time when the car pauses unexpectedly. Also the driver cannot predict when the car will surge forward. Merging or crossing traffic is very dangerous. >>>>Has the problem been reproduced or confirmed by a dealer or independent service center? The vehicle has been to the dealership two times to be inspected for this problem. They state that they cannot duplicate the issue but of course they can see the error code in the vehicle history. It is an issue that occurs at random; not every time the car is driven. It has occurred a total of 9 times during the 2,872 miles we have driven since we purchased it. >>>>Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Only the dealer has inspected the vehicle. Police, insurance, or others have not been involved. >>>>Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? There is no warning that the error is going to occur. There is a warning when it is occurring, and the check engine light comes on. We purchased the car as new when it had 6,934 miles on it. It had been used as a demonstration car for the dealership. The error first occurred at about 7500 miles.

Source: NHTSA complaint ODI #11641064 · view all complaints for this vehicle at nhtsa.gov

My horn isn't working as designed but when I push on steering wheel feels like it's cracking or breaking behind it. My front axels from factory were out of balance causing a vehicle vibration from 80+km/hr. Dealer thought it was tires not driveline. Different dealer diagnosed it as both axels in front. Issue was repaired once parts were available. Vibration still is evident but think its tires. Trying to get hyundai to replace tires now as its consequential damage. In November 2023 I was involved in a accident where the front collision warning and assist system didn't engage properly as when it did inwas in the danger zone already. And when I applied the brakes the steering became stiff as to mimic loss of power steering. I couldn't turn out of the accident and couldn't avoid it. Have video of this on my dash cam. I have a warning light rhat comes up on my dash saying check turn signal dealership verified. They have ordered the ICU junction box (fuse panel) but its been on a back order. Till February now. But no stored codes ever stay on my ecu or bcm.

Source: NHTSA complaint ODI #11565471 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2023 Hyundai Santa Fe. The contact stated that while driving at 40-45 MPH, the sunroof exploded outward without warning or impact, leaving the shattered glass rattling. There were no reported injuries. A local dealer was contacted but stated that they did not perform glass replacements. The vehicle was neither diagnosed nor repaired. The manufacturer was not contacted. The failure mileage was approximately 62,800.

Source: NHTSA complaint ODI #11748830 · view all complaints for this vehicle at nhtsa.gov