2015 Kia K900 Problems: 4 Known Issues
2015 model year · 110+ owner reports · Updated November 2026
According to Au7o's analysis of 110+ owner reports, the 2015 Kia K900 has 4 documented known issues, with 1 rated critical. The most serious is K900 Included in Kia's HECU Fire Recall (NHTSA 23V652000). Across all issues with published estimates, repair costs range from $100 to $2,500. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls3 recalls
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
Kia Motors America (Kia) is recalling certain 2016-2018 K900 and 2014-2016 Sportage vehicles. The Hydraulic Electronic Control Unit (HECU) module could malfunction and cause an electrical short, which could result in an engine compartment fire.
EXTERIOR LIGHTING:HEADLIGHTS
Kia Motors America (Kia) is recalling certain model year 2015-2016 K900 vehicles manufactured December 18, 2013 to January 11, 2016 and equipped with LED headlights. In the affected vehicles, when using the multi-function light switch in "AUTO" mode, electrical resistance may build in the switch and result in the headlights flickering or turning off when driving.
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
Kia America, Inc. (Kia) is recalling certain 2010-2019 Borrego, 2014-2016 Cadenza, 2010-2013 Forte, Forte Koup, Sportage, 2015-2018 K900, 2011-2015 Optima, 2011-2013 Optima Hybrid, Soul, 2012-2017 Rio, 2011-2014 Sorento, and 2010-2011 Rondo vehicles. The Hydraulic Electronic Control Unit (HECU) may experience an electrical short, which can result in an engine compartment fire while parked or driving.
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Frequently Asked Questions
What are the most common Kia K900 problems?
According to Au7o's analysis of 110+ owner reports, the 2015 Kia K900 has 4 documented issues. The most frequently reported are: K900 Included in Kia's HECU Fire Recall (NHTSA 23V652000), Infotainment System Freezing and Rebooting, 5.0L Tau V8 Timing Chain and GDI Injector Issues. Of these, 1 is rated critical and should be addressed promptly.
Is the Kia K900 reliable?
The 2015 Kia K900 has 4 known issues documented across 110+ owner reports. 1 issue is rated critical: K900 Included in Kia's HECU Fire Recall (NHTSA 23V652000). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Kia K900 problems?
Repair costs for known Kia K900 issues range from $0 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2015-2018 Kia K900 K900 Included in Kia's HECU Fire Recall (NHTSA 23V652000)?
The 2015-2018 Kia K900 flagship sedan is covered by NHTSA recall 23V652000. The defect is in the Hydraulic Electronic Control Unit — the antilock brake and traction control module — which may develop an electrical short capable of igniting a fire in the engine compartment. NHTSA… Severity: high.
What is the 2015-2017 Kia K900 Infotainment System Freezing and Rebooting?
The first-generation K900 (2015-2017) infotainment system suffers from frequent freezing, slow response, and random reboots. The head unit's processing power is inadequate for the system's demands, and the software develops memory leaks over time. The screen may freeze on a parti… Repairs typically run $0-$1,500. Severity: medium.
What is the 2015-2017 Kia K900 5.0L Tau V8 Timing Chain and GDI Injector Issues?
The 5.0L Tau GDI V8 in the first-generation K900 can develop timing chain tensioner rattle on cold start and GDI fuel injector failures. The hydraulic tensioners bleed down overnight, causing chain slack and rattle for 1-5 seconds at startup. The GDI piezoelectric fuel injectors… Repairs typically run $100-$2,500. Severity: medium.
What is the 2015-2016 Kia K900 Harsh 2-3 Upshift Under Light Throttle?
The 8-speed automatic transmission produces a noticeably harsh 2-3 upshift during gentle acceleration. Kia attributes the upshift shock to possible premature wear of the transmission's 35R and 4&OD solenoid valves and to the TCU shift logic. Kia TSB TRA096 covers some 2015-2016 T… Repairs typically run $100-$500. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.