Does the 2018 Kia Optima have any recalls?

The 2018 Kia Optima has 1 recall on file with NHTSA, including issues with latches/locks/linkages:trunk lid:latch.

How many complaints have been filed for the 2018 Kia Optima?

324 consumer complaints have been filed with NHTSA for the 2018 Kia Optima.

Are there technical service bulletins (TSBs) for the 2018 Kia Optima?

There are 154 technical service bulletins (TSBs) on file with NHTSA for the 2018 Kia Optima.

2018 Kia Optima Service and Repair Manual

4.7 · Trusted by 14,000+ mechanics & DIYers

$49.99 USD

Lightning-Fast Downloads

Optimized files — even slow connections handle it
Instant Search & Navigation

Jump to any procedure or spec with one click
Print One or All Pages

Bring only the pages you need to the shop
Covers Every System & Component

Every procedure for the 2018 Kia Optima

Secure Checkout

No Subscriptions

Factory-Grade Data

2018 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

SXL Sedan 4-Door
Hybrid Premium Sedan 4-Door
Hybrid LX Sedan 4-Door
EX Pack Sedan 4-Door
Plug-In Hybrid EX Premium Sedan 4-Door
EX Sedan 4-Door
LX 1.6T Sedan 4-Door
Hybrid EX Sedan 4-Door
S Sedan 4-Door
LX Sedan 4-Door
Plug-In Hybrid EX Sedan 4-Door
SX Turbo Sedan 4-Door
Hybrid EX Premium Sedan 4-Door
SX Sedan 4-Door
SXL Turbo Sedan 4-Door
EX Tech Sedan 4-Door

Engines covered

2.0L 1998CC 122Cu. In. l4 GAS DOHC Turbocharged
2.0L 1999CC 122Cu. In. l4 FULL HYBRID EV-GAS (FHEV) DOHC Naturally Aspirated
2.4L 2359CC l4 GAS DOHC Naturally Aspirated
2.0L 1999CC 122Cu. In. l4 PLUG-IN HYBRID EV-GAS (PHEV) 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

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Vehicle Safety Data

2018 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

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 154 technical service bulletins on file with NHTSA.

20180824Component: AIR BAGSCrash reported2 injured

TL* THE CONTACTS DAUGHTER WAS A PASSENGER IN A 2018 KIA OPTIMA. THE CONTACT STATED THAT THE VEHICLE WAS REAR ENDED AND CRASHED INTO A TREE. THE FRONTAL DRIVER AND PASSENGER AIR BAGS DID NOT DEPLOY. TH

20251126Component: AIR BAGSCrash reported1 injured

I was rearended, all air bags deployed except steeringwheel

20201125Component: AIR BAGSCrash reported1 injured

I WAS IN A CAR ACCIDENT AS I WAS DRIVING ON I65 AND MY AIR BAGS DID NOT DEPLOY AND MY SEAT BELT DIDN'T LOCK UP

20201125Component: SEAT BELTSCrash reported1 injured

I WAS IN A CAR ACCIDENT AS I WAS DRIVING ON I65 AND MY AIR BAGS DID NOT DEPLOY AND MY SEAT BELT DIDN'T LOCK UP

20191205Component: AIR BAGSCrash reported1 injured

ON NOVEMBER 18, 2019 @ 6:38 PM IN PHOENIX, ARIZONA ON 59TH AVE HEADING WEST I WAS IN A VERY TERRIBLE CAR COLLISION WHERE I WAS AT A STAND STILL AT A RED LIGHT AND WAS REAR ENDED BY A TOYOTA TACOMA GOI

Showing the 5 most serious of 324 complaints filed with NHTSA.

All Model Years