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Service bulletins for the 2018 Kia Soul

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

115 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
TSB_ENG222_R12021-02-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA 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. This bulletin provides information on diagnosing and/or repairing some 2011-2019MY vehicles (refer to table below for applicable model and engine), which may exhibit a symptom of excessive oil consumption.
TSB_ENG2222021-01-06. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION - NU/GAMMA ENGINES - This bulletin provides information on diagnosing and/or repairing some 2012-2019MY Soul (AM/PS) vehicles (refer to table below for applicable engine), which may exhibit a symptom of excessive oil consumption.
TSB_CHA084_R62020-12-02. Service bulletin. ENGINE AND ENGINE COOLING; STEERING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Worm Gear Assembly or Steering Column Housing on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
TSB_CHA084_R52020-12-02. Service bulletin. STEERING; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Worm Gear Assembly or Steering Column Housing on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
SC190_TSB2020-12-02. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: 1.6L T-GDI AUXILIARY CANISTER INSTALLATION (SC190) - This bulletin provides the procedure on the installation of an add-on auxiliary canister on some 2017-2019MY Soul (PS) vehicles equipped with the 1.6L T-GDI engine, produced from July 25, 2016 through December 12, 2018.
SC190_Sticker2020-12-02. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT:OTHER:LABELS; ENGINE AND ENGINE COOLING. SC190_STICKER - This document is the Completion Sticker that will get affixed under the hood of vehicles requiring certification that the campaign has been completed.
SC190_POC2020-12-02. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. SC190 - EMISSION SERVICE CAMPAIGN : PROOF OF CORRECTION CARD
SC190_QA2020-12-02. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. SC190 - EMISSION SERVICE CAMPAIGN - QA - This document is a Question and Answer document with information regarding the Voluntary Emissions Service Campaign to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2017-2019 MY Kia Soul vehicles equipped with the 1.6-liter Turbo-GDI engine manufactured from July 25, 2016 through December 12, 2018.
SC190_OWNR2020-12-02. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. SC190 - EMISSION SERVICE CAMPAIGN -OWNER LETTER - This document is notice to owners advising that Kia Motors America, Inc. is conducting a Voluntary Emissions Service Campaign to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2017-2019 MY Kia Soul vehicles equipped with the 1.6-liter Turbo-GDI engine manufactured from July 25, 2016 through December 12, 2018.
SC190_DPSM2020-12-02. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. SC190 - EMISSION SERVICE CAMPAIGN - DEALER PARTS AND SERVICE MANAGER LETTER - This document is notice to dealer parts and service managers advising that Kia Motors America, Inc. is conducting a Voluntary Emissions Service Campaign to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2017-2019 MY Kia Soul vehicles equipped with the 1.6-liter Turbo-GDI engine manufactured from July 25, 2016 through December 12, 2018.
SC190_DP2020-12-02. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. SC190 - EMISSION SERVICE CAMPAIGN - DEALER PRINCIPAL LETTER - This document is notice to dealer principals that Kia Motors America, Inc. is conducting a Voluntary Emissions Service Campaign to install an Auxiliary Canister Kit to improve evaporative system performance on certain 2017-2019 MY Kia Soul vehicles equipped with the 1.6-liter Turbo-GDI engine manufactured from July 25, 2016 through December 12, 2018.
TSB_CHA098_R32020-09-03. Service bulletin. EQUIPMENT; SERVICE BRAKES, HYDRAULIC:FLUID. TECHNICAL SERVICE BULLETIN: IBAU SYSTEM REPAIR FOR NOISE AND AIR BLEEDING - 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 the repair procedure for the Integrated Brake Actuation Unit (iBAU) system on some 2014-2019MY EV/Hybrid/Plug-In Hybrid vehicles listed (see table), which may exhibit a "honking" (Hissing) noise due to air remaining in the brake fluid system.
PS6752020-09-03. Service bulletin. EQUIPMENT; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER. PITSTOP - BRAKE CALIPER LEAK INSPECTION - This PITSTOP provides information related to a brake caliper fluid/oil substance found on some Kia vehicles, due to possible excess assembly oil applied during assembly.
TSB_ENG2192020-08-04. Service bulletin. ENGINE AND ENGINE COOLING. TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE - This bulletin provides information on setting the "Service Interval Reminder" feature available on most Kia vehicles. If the service interval reminder is set, the customer will be informed to have the next maintenance service performed, which can positively affect vehicle longevity and performance.
EngOil_OWNR2020-08-03. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Communication to Kia Owners - IMPORTANT REMINDER OF ENGINE MAINTENANCE REQUIREMENTS FOR ENGINE LONGEVITY - Kia Motors America, Inc. is sending this notice to remind you in detail of the oil and oil filter maintenance requirements provided in your Owner's Manual which are critical to your engine's health. The purpose of sharing this information is to help you protect the investment you have in your vehicle's engine, to maximize its durability, and to avoid issues associated with insufficient or improper vehicle maintenance.
TSB_CLI0492020-07-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL; EQUIPMENT:APPLIANCE:AIR CONDITIONER. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR - ELECTRICAL A/C COMPRESSOR - This bulletin provides information regarding partial repair of the Air Conditioning (A/C) compressor assembly on some 2011MY~ Optima (TF HEV, JF HEV/PHEV/EV), Soul (PS EV) and Niro (DE HEV/PHEV/EV) vehicles.
TSB_TRA046_R12020-05-05. Service bulletin. POWER TRAIN. TECHNICAL SERVICE BULLETIN: - TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, refer to applicable vehicles on page 2. Refer to the shop manual on KGIS for the specific Kia model for the correct transmission fluid check/fill procedures.
TSB_CHA098_R22020-04-07. Service bulletin. SERVICE BRAKES, HYDRAULIC. TECHNICAL SERVICE BULLETIN: IBAU SYSTEM REPAIR FOR NOISE AND AIR BLEEDING - This bulletin has been revised to include additional information. This bulletin provides the repair procedure for the Integrated Brake Actuation Unit (iBAU) system on some 2014-2019MY EV/Hybrid/Plug-In Hybrid vehicles listed (see table), which may exhibit a “Honking” (Hissing) noise due to air remaining in the brake fluid system.
TSB_ELE1482020-02-04. Service bulletin. EXTERIOR LIGHTING. TECHNICAL SERVICE BULLETIN: HALOGEN HEAD LAMP LOW BEAM BULB CONNECTOR REPLACEMENT - This bulletin provides information regarding the procedure to repair the bulb connector on some 2010MY~ vehicles listed on the table below, which may exhibit a bulb connector concern. To correct this concern, replace the connector with a new and improved part.
TSBCHA084_R42019-12-09. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; STEERING. TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU AND/OR STEERING COLUMN HOUSING - This bulletin has been revised to include additional information.This bulletin provides information regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU) or Steering Column Housing on some 2010MY~ Kia models listed on page 5 equipped with a Column Motor Driven Power Steering (C-MDPS) unit. Follow the MDPS Flowchart (page 2) along with the MDPS DTC Table (page 3) procedure outlined in this bulletin before replacing the C-MDPS Motor, ECU or Steering Column Housing.
TSBCHA084_R32019-11-07. Service bulletin. STEERING. TECHNICAL SERVICE BULLETIN TSB084_R3: PARTIAL REPAIR OF C-MDPS MOTOR, ECU AND/OR STEERING COLUMN HOUSING - This bulletin has been revised to include additional information.This bulletin provides information regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU) or Steering Column Housing on some 2010MY~ Kia models listed on page 5 equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
TSBCHA0982019-09-06. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL. TSBCHA098: IBAU SYSTEM REPAIR GUIDE FOR NOISE AND AIR BLEEDING - This bulletin provides the repair guide for the Integrated Brake Actuation Unit (iBAU) system on some 2014-2019MY Kia EV/Hybrid/Plug-In Hybrid vehicles listed (see table), which may exhibit a “Honking” (hissing) noise due to air remaining in the brake fluid system.
TSBCHA098_R12019-09-06. Service bulletin. SERVICE BRAKES, HYDRAULIC. TSBCHA098_R1: IBAU SYSTEM REPAIR FOR NOISE AND AIR BLEEDING - This bulletin has been revised to include additional information. This bulletin provides the repair procedure for the Integrated Brake Actuation Unit (iBAU) system on some 2014-2019MY EV/Hybrid/Plug-In Hybrid vehicles listed (see table), which may exhibit a "Honking" (Hissing) noise due to air remaining in the brake fluid system.
TSBENG178_R32019-08-07. Service bulletin. ENGINE AND ENGINE COOLING. TSB: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC18) - This bulletin has been revised to include additional information. This bulletin provides information related to extracting “in use performance tracking” emissions data from the Engine Control Unit (ECU) of certain vehicles sold in California.
TSBTRA0782019-07-04. Service bulletin. POWER TRAIN. TSB: TRANSMISSION LOGIC IMPROVEMENT - This bulletin provides the procedure to optimize the logic of the Transmission Control Unit (TCU) on 2017-2018MY Soul (PS) and Forte (YDm) and 2016-2018MY Optima (JFa) vehicles equipped with 1.6T GDI that have one of the following three components replaced: Dual Clutch Transmission (DCT) assembly; Transmission Control Unit (TCU), and Double Clutch Set.The friction material of the double clutch set has been changed and a TCU logic optimization must be performed in order to prevent initial shift shock.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.