2026 Kia Carnival Complaints

Battery died at under 3,300 miles. After roadside came and jumped the batter, it died again after two days. Jumped again for the second time, when driving the car around it would randomly shut off even when the car is moving at higher speeds on freeway. The shut off would be for just one second and comes back on - everything starts resetting. And goes to user authoriztions notifications. Car shut off three times while driving around.

The car now auto locks on the vehicle upon exit, even with key fobs in the car. The first few months I had the car this did not happen. I left me keys and phone in the car. I turned vehicle off, exited the vehicle and walked around to get my daughter out of her car seat. After about 5-8 seconds of walking around. The car automatically locked. The key fob was placed in the center console. My 1 year old daughter was left trapped in the vehicle, placing her life in danger. I had to call emergency services and have them open it for me. This is a huge saftey concern. I never changed any setting to allow for this. The car should not auto lock, and definitely should not lock with keys in the vehicle a few seconds after exiting.

2026 Kia Carnival MPV Hybrid SX Prestige(Exterior: Astra Blue Interior: Tuscan Umber / Off-Black) purchased December 2025. Two separate safety-related defects have gone unresolved for 31+ cumulative days across two dealer repair visits. DEFECT 1 — INSTRUMENT CLUSTER: Instrument cluster screen goes blank while driving, eliminating speedometer, TPMS, and all warning indicators. First observed February 2026. Dealer visit February 13–17 (4 days): technician said could not replicate. Defect recurred. Kia has since issued a federal safety recall confirming this exact defect — citing FMVSS noncompliance and stating the blank screen increases crash risk due to a software error causing overheat protection mode. Vehicle was at dealer for an active safety recall defect that went undiagnosed during a repair visit. DEFECT 2 — SEAT MODULE: Second-row seat module failed. Vehicle returned to dealer March 5 (still there, 27+ days). Wiring harness replacement attempted approximately March 21 — failed, d...

Sliding Door Sensor Failed My daughter was getting in the van, when her brother hit the door button, if my husband wouldn’t have glanced over at that exact moment and pulled her back, this would’ve been another story. THE SENSOR IS NOT SENSITIVE ENOUGH! We as mothers are demanding sensors sensitive enough to detect smaller, fragile children!

Air conditioning has never worked. It was purchased in the winter. As weather warmed, we noticed the air conditioning was never cold. Dropped it off at the dealership. Their first comment before looking at the vehicle was that a rock probably hit it and broke the air conditioning. After inspection they said it was a rock so it isn’t a warranty item. Seems suspicious. Possibly warranty fraud to try to get money from a consumer for a covered defect. If that’s the first thing they suggested was wrong, how often is this happening and is it fraud or a design defect.