Problems · by component

2018 Kia Sorento engine problems

107 owner complaints to NHTSA about the 2018 Kia Sorento cite engine, 42% of all 255 complaints for this model year.

Complaints
107
42% of all complaints
Crashes
0
Reported by owners
Fires
7
Reported by owners
Injuries
1
Reported by owners
01 —Owner reports

What owners say about the engine

Verbatim from NHTSA complaints, newest first
“My 2018 Sorento is consuming oil excessively. I’m having to add oil between changes, and I’m now experiencing reduced acceleration under load. I have been told by a few different parties that this has become a common problem with Kia’s. I want an oil-consumption test performed and I want the VIN checked for all engine campaigns, warranty extensions, KSDS coverage, and open recalls”
Owner complaint to NHTSAFiled Oct 6, 2026EngineODI 11769459
“Complete engine failure inspected by Westgate Kia Service Dept, Wake Forest, NC Service manager confirmed that known issue and recall in effect for 2018 Kia Sorrento same issue but because manufactures parts are only covered when made in certain locations. mine not covered. He did agree it was exact same issue but declined to assist. Warning sign / flashing check engine light.”
Owner complaint to NHTSAFiled Sep 18, 2026EngineODI 11765284
“Vehicle: 2018 Kia Sorento VIN: [XXX] Kia Corporate Case #: XXX My 2018 Kia Sorento experienced a catastrophic engine failure (“holes in the block”) while under warranty. The vehicle lost power, emitted heavy smoke, and became completely inoperable. Kia America has refused to repair the engine and has delayed providing the required written denial for my warranty claim. This vehicle has also suffered five break-ins, and Kia has two active recalls for my year and model that were never performed, including a theft‑prevention recall. My vehicle is part of a nationwide class‑action lawsuit involving engine defects and theft vulnerabilities. Because Kia America delayed resolving my warranty case, the vehicle has been sitting at Kia Vacaville accumulating predatory storage fees. The dealership is now threatening a mechanic’s/storage lien sale, which would destroy the vehicle and eliminate evidence of the manufacturer defect. I cannot afford any repair costs, storage fees, or loan payments for a vehicle that failed due to manufacturer defects. I am requesting NHTSA’s investigation into Kia’s handling of engine failures, recall compliance, and the dealership’s attempt to…”
Owner complaint to NHTSAFiled Sep 15, 2026Electrical system, EngineODI 11764549
“I am a working parent filing a formal complaint against Kia America and Classic kia of Carrollton for non-compliance with the Theta II Class Action Settlement mandates. My vehicle experienced a qualifying engine failure and is currently held at the dealership. The dealership is actively refusing to provide a mandatory free loaner vehicle and is delaying the 5-minute diagnostic scan. Kia Corporate is refusing to authorize an alternative direct-bill rental line without the scan. This corporate bottleneck has left a working parent and a school-aged child completely stranded, threatening my employment. The manufacturer is violating a court-ordered settlement. I am in need of a vehicle and its unacceptable to expect me to pay out of pocket which I cannot afford, for a defect caused by the manufacture, not the customer.”
Owner complaint to NHTSAFiled Aug 20, 2026EngineODI 11758172
“The contact owns a 2018 Kia Sorento. The contact stated that while driving 50 MPH and depressing the accelerator pedal, the vehicle failed to respond as needed. There was smoke coming from the rear of the vehicle. The contact exited the freeway and waited for AAA to tow the vehicle to the residence. The vehicle was towed to an independent mechanic, and the contact was informed that the oil pan switch needed to be replaced. The oil pan switch was replaced, and the vehicle was repaired. The manufacturer was notified of the failure and asked the contact if the vehicle had regular oil changes. The contact was then informed that there was an oil leak underneath the vehicle. The approximate failure mileage was 118,000.”
Owner complaint to NHTSAFiled Aug 20, 2026EngineODI 11758177
“My wife and I were Driving when I tried to stop and the brakes failed. Within seconds the vehicle caught fire in the engine compartment. I had to slam the transmission into park cause the doors would not open. When my wife tried to escape out the passenger side the flames came into the cabin towards her. I then opened my door and then had to help my wife escape out the driver's side door. Within minutes the car was engulfed in flames. The fire department arrived and it took a while to extinguish. The vehicle is totaled.”
Owner complaint to NHTSAFiled Jul 5, 2026Service brakes, EngineFire reportedODI 11748348

Showing 6 of 107 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.