2025 KIA CARNIVAL — Problems, Recalls & Safety Data

12v Battery died 2 times first on 12/26 then on 1/25. We had to call in roadside assistance for jump start. This was reported to Kia Dublin and Kia Manteca in California. Kia Dublin ran the diagnostics and couldnt find anything. Kia Manteca later found the battery logs showing issues. But said it could have been related to the HVAC recall which is now fixed. But the problem re-occured. This is a brand new vehicle less than 1 year old, still unders warranty. Have reported this to Kia customer care as well. Kia Customer Care Case#XXX So far, we have had the following issues: 1. The front passenger seat recliner stopped working. Kia Manteca replaced the seat frame under warranty. 2. Both rear entertainment screens stopped working. Kia Dublin has ordered them under warranty. Replacement planned for 1/26. 3. Battery died 2 times, luckily car was in the garage we were not stranded anywhere outside. But its frustrating how the new car is not working as expected and stalls so frequently. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Was driving to work this morning and the first time I tried to get accelerate, I was unable to get above 31 MPH no matter how hard I pushed the pedal. Had to stop and restart. Not sure if it is due to the -1 degree weather this morning?

My 2025 Kia Carnival Hybrid produces externally audible audio while the vehicle is locked, with all doors and windows fully closed. Private phone calls, navigation instructions, and other in-vehicle audio can be clearly heard from outside the vehicle indefinitely, even after locking the car. This behavior occurs without warning to the driver and cannot be disabled or controlled through any user setting. The dealership and manufacturer have confirmed this behavior is “by design” and have declined to correct it. This presents a safety and security concern, as it exposes private communications, signals whether a vehicle is occupied, and may attract unwanted attention or increase the risk of harassment, stalking, or theft—especially in parking garages, residential areas, or public locations. The vehicle appears secure to the driver (locked, windows closed), yet continues to broadcast audio externally, which is unexpected and undocumented behavior. I believe this constitutes an unintended external output of vehicle systems while secured, creating a potential safety vulnerability.

TL;DR : Vehicle engages limp home mode without any notification to the driver that it is in limp home mode and doesn’t generate any codes for technicians to identify why the vehicle went into limp home mode. During oil changes, a significant amount of residual oil remains in the engine. When the lube tech fills the oil using the recommended amount, engine is actually over full of oil as indicated on the dip stick. The vehile will start and run fine for a while. Later however, an oil pressure sensor will detect the over full status and put the car into limp home mode. No check engine light, no oil light, no indicator saying it’s in limp home mode, and when the service tech investigates, no code thrown for the issue. A manual checking of the dip stick will reveal the oil is over full. The fix is to drain oil to normal levels as shown on the dipstick. It isn’t a defect considering that it’s reasonable to expect a vehicle to be operated with the correct amount of oil. A future software update for the oil sensor to throw a code for the tech would be appropriate.

What component or system failed or malfunctioned, and is it available for inspection upon request? While driving all of the lights in the car went off. Everything internal, and atleast the head lights externally. This lasted for a second or 2 before everything came back on. The screen said something about loss of something, but I don't remember what exactly. This has only happened once. Yes it can be inspected How was your safety or the safety of others put at risk? Atleast the head lights went off while driving at night. Possibly my break lights as well. Has the problem been reproduced or confirmed by a dealer or independent service center? no Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? no Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Just the message on the screen