2021 Kia Seltos service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- GT Line Sport Utility 4-Door
- SX Sport Utility 4-Door
- SX Turbo Sport Utility 4-Door
- LX Sport Utility 4-Door
- S Sport Utility 4-Door
- EX Premium Sport Utility 4-Door
- EX Pack Sport Utility 4-Door
- EX Sport Utility 4-Door
Engines covered
- 1.4L 1353CC 83Cu. In. l4 GAS DOHC Turbocharged
- 1.6L 1591CC l4 GAS DOHC Turbocharged
- 2.0L 1999CC l4 GAS DOHC Naturally Aspirated
- 1.6L 1591CC 97Cu. In. l4 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
Kia Motors America (Kia) is recalling certain 2020-2021 Soul, and 2021 Seltos vehicles equipped with 2.0L Nu MPI engines. The piston oil rings may not have been properly heat-treated, which may resul
A damaged engine may stall, increasing the risk of a crash. In addition, oil may leak onto hot exha
Kia will notify owners, and dealers will inspect and, if necessary, replace the engine, free of char
TECHNICAL SERVICE BULLETIN: INFOTAINMENT SYSTEM SOFTWARE UPDATE USING UPDATE.KIA.COM - This bulletin provides information and service procedures for updating the infotainment systems on applicable Kia vehicles using the Kia Navigation Updat
VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER RENOTIFICATION (SC199 FL301) - This document is the owner renotification advising that Kia is conducting Voluntary Service Campaign to update the software programming on the Transmission Control M
CUSTOMER SATISFACTION CAMPAIGN: OWNER NOTIFICATION (CS2312) - This document is the owner notification advising that Kia is conducting Customer Satisfaction Campaign. A software upgrade that addresses the social media theft method has been m
TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - This bulletin provides information to install a Theft Deterrent Ignition Cylinder Protector on certain 2010-202
PITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning (PDW) alerts and repairs involving ultrasonic sensors. The PDW system alerts the driver while parking
WARRANTY EXTENSION CAMPAIGN: TECHNICAL SERVICE BULLETIN: HORN ASSEMBLY INSPECTION/REPLACEMEN (WTY038) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in
TECHNICAL SERVICE BULLETIN: IBU LOGIC IMPROVEMENT: This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information t
This bulletin provides instructions to perform an engine vibration inspection using the Kia Diagnostic System (KDS) tablet on certain Kia engine/model vehicles. The piston oil ring(s) in certain Kia engines may, over time, damage the surfac
Showing the 8 most recent of 133 technical service bulletins on file with NHTSA.
I was traveling at approximately 50mph straight through an intersection. The opposing car made a left turn directly in front of me and I T-boned the other vehicle (gray Kia Optima). There was sufficie
I was going to park my car the second I went to change gears my car accelerated forward through a bakery I stepped on the brakes as fast as I could but it was too late
I was going to park my car the second I went to change gears my car accelerated forward through a bakery I stepped on the brakes as fast as I could but it was too late
I was going to park my car the second I went to change gears my car accelerated forward through a bakery I stepped on the brakes as fast as I could but it was too late
The contact owns a 2021 Kia Seltos. The contact stated that while switching gears from reverse to drive, the vehicle had inadvertently accelerated and crashed into an unoccupied parked vehicle before
Showing the 5 most serious of 453 complaints filed with NHTSA.
