2023 Kia Forte Service and Repair Manual

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Factory-Grade Data

2023 Kia Forte 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 Sedan 4-Door
  • EX Sedan 4-Door
  • GT Sedan 4-Door
  • EX Hatchback 4-Door
  • LX Sedan 4-Door
  • GT Line Hatchback 4-Door
  • LXS Sedan 4-Door
  • L Sedan 4-Door
  • GT Limited Sedan 4-Door
  • EX Premium Sedan 4-Door
  • GT Hatchback 4-Door
  • GT-Line Sedan 4-Door
  • EX+ Sedan 4-Door

Engines covered

  • 2.0L 1999CC 122Cu. In. 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

2023 Kia Forte Recalls & Complaints

NHTSA #23V64900022/09/2023Component: SUSPENSION:FRONT:CONTROL ARM:LOWER ARM

Kia America, Inc. (Kia) is recalling certain 2023 Forte vehicles. The right front lower control arm may have been improperly welded, which can cause it to fail.

Consequence

Front lower control arm failure can cause a sudden loss of steering control, increasing the risk of

Remedy

Owners are advised not to drive their vehicles until the repair has been performed. Dealers will re

NHTSA #22V90600008/12/2022Component: STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM

Kia America, Inc. (Kia) is recalling certain 2023 Forte vehicles. Due to a manufacturing error, the front left steering knuckle may crack, which can result in a loss of steering control.

Consequence

A loss of steering control increases the risk of a crash.

Remedy

Dealers will inspect and replace the front left steering knuckle, as necessary, free of charge. Own

TSB #11031906

TECHNICAL SERVICE BULLETIN: INFOTAINMENT SOFTWARE UPDATE PROCEDURE - This bulletin provides information on the process for downloading infotainment software updates and preparing USB for installation on applicable Kia vehicles. The software

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

TSB #11025759

TECHNICAL SERVICE BULLETIN: TIRE MOBILITY REPLACEMENT - This bulletin provides information to replace the Tire Mobility Kit (TMK) sealant can or TMK bag assembly on certain 2023-2024MY Forte (BDm) models produced from March 01, 2023 thoroug

TSB #11017172

TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - 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 provid

TSB #11017109

TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - 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. Th

TSB #11015973

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: KIA CONNECT MODEM RESET (SA611) - This bulletin outlines the procedure for resetting the modem in certain 2016-2025MY Kia vehicles listed on page 3 that are equipped with Kia Connect Services. The

TSB #11014912

TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - 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. Th

TSB #11012903

TECHNICAL SERVICE BULLETIN: SERVICE ACTION: DISPLAY AUDIO 2.0/AVN5WSOFTWARE UPDATE (SA569) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin

Showing the 8 most recent of 44 technical service bulletins on file with NHTSA.

20251204Component: STRUCTURE:BODYCrash reportedFire reported1 fatalities

My father was in a fatal vehicle accident in which the car was going very fast and then he crashed into a building. The car then started on fire. The black box was unable to be recovered to check car

20251204Component: VEHICLE SPEED CONTROLCrash reportedFire reported1 fatalities

My father was in a fatal vehicle accident in which the car was going very fast and then he crashed into a building. The car then started on fire. The black box was unable to be recovered to check car

20251204Component: STEERINGCrash reportedFire reported1 fatalities

My father was in a fatal vehicle accident in which the car was going very fast and then he crashed into a building. The car then started on fire. The black box was unable to be recovered to check car

20260218Component: AIR BAGSCrash reported1 injured

My son was in a car accident in my car January 1 at none of the Air bags went off. Not one there is a police report and I have pictures. Its a 2023 kia forte

20230926Component: AIR BAGSCrash reported1 injured

What component or system failed or malfunctioned, and is it available for inspection upon request? The Airbsgs failed to deploy when I was hit on my driver side by a car going going between 45-

Showing the 5 most serious of 91 complaints filed with NHTSA.

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