While driving at highway speeds the exterior and interior lighting/electrial system shut down completely. My headlights shut off, as well as all electrical/lighting inside the vehicle for approximately 1 minute before turning back on as if I had turned the car off and restarted it. I have a low tire pressure warning that comes on when the car is started, and it came on again as if my car had just …
2025 Kia Carnival electrical problems
moderate 71 complaints filed with NHTSA · avg repair $850
Complaints
71
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 13 most recent
Brand new car and the battery is draining. Leaving the vehicle unable to start.
Battery went dead. Been at dealer 2 weeks. They are waiting to hear from Kia but nothing is being done.
The battery has died twice within 3 months. I couldn’t leave my house to collect my kids. The problem has been commented on by a dealership. No.
The 12-volt battery fully discharges and leaves the vehicle inoperable ONLY when parked in my attached townhouse garage (overnight or 1–3 days). The vehicle starts and runs normally when parked elsewhere (work, airport, etc.) for the same duration. Symptoms: No warning lights prior to failure Dashboard completely dark; no power to doors, lights, or start button Requires jump-start or tow
There seems to be a very common problem of the 2025 Kia Carnival having a battery drain issue, leaving people stranded. I had a dead battery today with only one month and 300 miles of use. Thousands have had the same experience and have discussed this on various forums.
12V Vehicle battery drained. Unable to start Vehicle.
I live in Alabama. Temperature here is 34 degrees so far in the morning. My check engine light is on. I have taken it in and had diagnostics and they can't find a code or code history. My heat and AC do not work properly if the ambient temperature on the cluster doesn't show up or is not correct. 72 degrees when it's not working right will run you out of the car it's so hot. The cluster currently…
12V battery drains if the car is left unused for more than 3-4 days. Car needs to be jumped to start it up again. The issue occurred in August and I jumped it first time. It started happening again September and had a service appointment with Kia. They hard reset the software but the issue occured again every time I left the car unused for more than 3-4 days.
I was driving about 6:30ish in the morning and my whole dashboard went black and my head lights turned off couple seconds later it came back on while i am driving. I will be calling the dealership to see what can be checked.
Common questions
How serious is the electrical problem on the 2025 Kia Carnival?
It's a documented issue but not catastrophic. 71 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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