2016 Kia Optima Service and Repair Manual

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Factory-Grade Data

2016 Kia Optima 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

  • Hybrid EX Premium Sedan 4-Door
  • SXL Sedan 4-Door
  • SX Sedan 4-Door
  • Hybrid Sedan 4-Door
  • Hybrid LX Sedan 4-Door
  • EX Sedan 4-Door
  • SX Limited Sedan 4-Door
  • LX 1.6T Sedan 4-Door
  • Hybrid EX Sedan 4-Door
  • LX Sedan 4-Door

Engines covered

  • 2.4L 2359CC l4 FULL HYBRID EV-GAS (FHEV) DOHC Naturally Aspirated
  • 2.0L 1998CC 122Cu. In. l4 GAS DOHC Turbocharged
  • 2.0L 1999CC 122Cu. In. l4 GAS Turbocharged
  • 2.4L 2400CC 146Cu. In. l4 GAS Naturally Aspirated
  • 2.4L 2359CC l4 GAS DOHC Naturally Aspirated
  • 1.6L 1591CC 97Cu. In. l4 GAS DOHC Turbocharged

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

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Vehicle Safety Data

2016 Kia Optima Recalls & Complaints

NHTSA #23V59400024/08/2023Component: LATCHES/LOCKS/LINKAGES:TRUNK LID:LATCH

Kia America, Inc. (Kia) is recalling certain 2016-2017 Rio, 2016-2018 Optima, 2017-2018 Optima Hybrid and Optima Plug-in Hybrid vehicles. The trunk latch base may crack, preventing the opening of the

Consequence

A person inside the trunk compartment may become trapped, increasing their risk of injury.

Remedy

Dealers will replace the trunk latch base subassembly, free of charge. Owner notification letters w

NHTSA #16V23100021/04/2016Component: AIR BAGS:FRONTAL

Kia Motors America (Kia) is recalling certain model year 2016 Kia Optima vehicles manufactured November 10, 2015, to February 12, 2016. In these vehicles, a chemical enhancer required for the for the

Consequence

If the second stage air bag does not deploy it increases the risk of injury or death.

Remedy

Kia will notify owners, and dealers will replace the driver's frontal air bag module, free of charge

NHTSA #18V90700019/12/2018Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under recall number 17V-224, warranty,

Consequence

A fuel leak in the presence of an ignition source can increase the risk of a fire.

Remedy

Kia has notified owners, and dealers will inspect and replace the fuel pipe, as necessary, free of c

NHTSA #17V00700006/01/2017Component: AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE

Kia Motors America (Kia) has recalled one 2016 Optima vehicle. In this vehicle, the end seal for the driver's frontal air bag inflator may not have been properly installed, possibly resulting in redu

Consequence

In the event of a crash, an air bag that does not inflate fully increases the risk of injury.

Remedy

The affected vehicle was remedied on January 10, 2017. Owners may contact Kia customer service at 1

NHTSA #16V70500003/10/2016Component: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT

Kia Motors America (Kia) is recalling certain model year 2016 Kia Optima vehicles manufactured November 13, 2015, to April 23, 2016 and equipped with a 2.4l engine. The right front axle driveshaft ma

Consequence

If the driveshaft cracks and separates from the vehicle, it will not be able to move forward. Addit

Remedy

Kia will notify owners, and dealers will replace the front axle driveshaft, free of charge. The rec

TSB #11031854

VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA II 2.4L GDI EMISSIONS: ECM LOGIC IMPROVEMENT (SC340 REVISION 5) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black b

TSB #11030390

VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 104 ) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the Ele

TSB #11029979

TECHNICAL SERVICE BULLETIN: VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA II 2.4L GDI EMISSION SECM LOGIC IMPROVEMENT (SC340 REV 4) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are

TSB #11028908

TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION CYLINDER PROTECTOR AND DECAL INSTALLATION (CS2312) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are ind

TSB #11026980

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

TSB #11026899

VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION (SC340 FLIGHT 103 / JF) - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to improve the emissions software logic in the

TSB #11026825

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

TSB #11026698

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

Showing the 8 most recent of 225 technical service bulletins on file with NHTSA.

20250804Component: AIR BAGSCrash reported2 injured

I have pictures

20250804Component: STRUCTURE:BODYCrash reported2 injured

I have pictures

20250804Component: ENGINECrash reported2 injured

I have pictures

20180823Component: STRUCTURE:BODYCrash reported2 injured

I WAS REAR ENDED WHILE STOPPED IN BREAKDOWN LANE OF A SECONDARY HIGHWAY (40 MPH) PROBLEM THAT I WOULD LIKE TO ADDRESS IS THE INADEQUATE CUSHIONING IN THE HEADRESTS OF THIS CAR AND PROBABLY MANY OTHERS

20180823Component: SEATSCrash reported2 injured

I WAS REAR ENDED WHILE STOPPED IN BREAKDOWN LANE OF A SECONDARY HIGHWAY (40 MPH) PROBLEM THAT I WOULD LIKE TO ADDRESS IS THE INADEQUATE CUSHIONING IN THE HEADRESTS OF THIS CAR AND PROBABLY MANY OTHERS

Showing the 5 most serious of 1047 complaints filed with NHTSA.

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