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Service bulletins for the 2018 Kia Rio

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.

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

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Bulletins, newest first
TSB_BOD2082020-07-06. Service bulletin. LATCHES/LOCKS/LINKAGES. TSB - This bulletin provides the procedure to perform a partial repair on the trunk latch base sub assembly on the certain Forte, Rio and Optima vehicles, which may exhibit a difficult-to-close/latch concern with the trunk lid.
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.
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.
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.
TSBENG178_R22019-05-08. Service bulletin. ENGINE AND ENGINE COOLING. TSB: DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC18) - 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. The California Air Resources Board (CARB) requires the emissions data from vehicles with a minimum of 3,000 accumulated miles without reprogramming or resetting.
TSBCLI0442019-04-06. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: SERVICE ACTION: A/C REFRIGERANT OVERFILL (SA372) - This bulletin provides the procedure to recover and recharge the air conditioning system on certain 2019MY Niro Hybrid (DE HEV) and Niro Plug-in Hybrid (DE PHEV) vehicles, produced from July 9, 2018 through December 21, 2018, which may experience poor air conditioning performance due to a possible overfill of refrigerant. Follow the procedure in this bulletin to recover and recharge the air conditioning system with the proper amount. Kia is requesting the completion of this Service Action on all affected vehicles including dealer stock, prior to delivery.
TSBENG083_R12019-02-19. Service bulletin. FUEL SYSTEM, GASOLINE. TSB: SPECIAL SERVICE INFORMATION & SPECIFICATIONS FOR GDI HIGH PRESSURE FUEL SYSTEM - This bulletin has been revised to include additional information. This bulletin provides information relating to all Kia vehicles equipped with Gasoline Direct Injection (GDI) engines. In these engines highly pressurized gasoline is injected via a common fuel rail and injectors that deliver fuel directly into the combustion chamber of each cylinder. In comparison, in a conventional Multi-Point Fuel Injection (MPI) engine, the gasoline is injected into the intake port of each cylinder at a relatively low pressure. Due to high fuel pressure in a GDI system, servicing the GDI system requires special attention and handling procedures. This bulletin provides special service information and specifications for the GDI fuel system components.
PS529_R22018-10-09. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. PITSTOP - TPMS LAMP ON, TRUNK OPEN LAMP ON, AND/OR AUDIO SYSTEM INOPERATIVE - This Pitstop provides information regarding an inoperative Audio system, TPMS lamp ON, Trunk Open warning lamp ON (even while the trunk is closed), and/or Master Warning Mode lamp ON in the instrument cluster. This condition may be caused by the Transportation Fuse not being fully seated.
PS5642018-06-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. PITSTOP - CLOCK CONCERNS ON UVO eSERVICES (UVO 3.0) - This Pitstop contains information regarding possible concerns with the clock on UVO eServices (UVO 3.0) head units installed on 2017-2018MY vehicles.
TSBENG1862018-05-14. Service bulletin. ELECTRICAL SYSTEM. TSB - SERVICE ACTION: SPARK PLUG REPLACEMENT (SA342) - This bulletin provides the procedure to replace the spark plugs on some 2018MY Forte (YDm), produced from November 21, 2017 through April 12, 2018, and 2018MY Rio (SC) vehicles, both produced from November 22, 2017 through February 6, 2018, which may exhibit a malfunction indicator lamp (MIL) ON with DTCs P0300 through P0304 due to the spark plug porcelain cracking during manufacturing. Follow the procedure outlined in this bulletin to replace all four spark plugs, whether or not the MIL is ON.
TSBENG178_R12018-05-14. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. 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.
PS5512018-04-16. Service bulletin. BACK OVER PREVENTION; LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK. PITSTOP - RATTLE NOISE FROM REAR OF THE VEHICLE (PS551) - This Pitstop contains information regarding a rattle type noise heard from the rear of the vehicle when closing a door or trunk on some 2016MY-2018MY vehicles.
PS5392018-04-16. Service bulletin. ENGINE AND ENGINE COOLING. PITSTOP - ENGINE COMPONENT RE-USE GUIDELINES - In general, parts and components removed during engine repairs should be considered serviceable, and should be thoroughly cleaned and transferred to the new engine.
TSBTRA047_R22018-03-13. Service bulletin. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT. TSB - DRIVESHAFT SERVICEABILITY - This bulletin has been revised most recently to include additional information. This bulletin provides information regarding axle shaft serviceability for Kia vehicles equipped with a six-speed automatic transmission.
PS529_R12018-02-12. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. PITSTOP - TPMS LAMP ON AND/OR TRUNK OPEN LAMP ON AND/OR AUDIO SYSTEM INOPERATIVE DURING PDI -This bulletin has been revised to include additional information. This bulletin has been revised to include additional information. This Pitstop contains information regarding the the Audio System inoperative, and TPMS lamp ON, Trunk Open warning lamp ON (even while the trunk is closed), and Master Warning Mode lamp ON in the instrument cluster during PDI. This condition may be caused by the Transportation Fuse being in the OFF position.
TSBENG1782018-02-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. TSB - DATA COLLECTION: EXTRACT CALIFORNIA EMISSIONS DATA FROM ECU (DC18) - 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.
PS5292017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. PITSTOP - TPMS AND/OR TRUNK OPEN LAMP ON DURING PDI - This Pitstop contains information regarding the TPMS lamp ON and Trunk Open warning lamp ON, or Master Warning Mode lamp ON in the cluster during PDI, even while the trunk is closed.
TSBBOD1772017-11-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB - ANTENNA POLE LOCATION DURING TRANSPORT - This bulletin provides information regarding the shipping location of the antenna pole in all 2018MY Forte (YDm) 5 Door SX and all 2018MY Rio (SC) vehicles at delivery to dealers and Transportation claims related to the antenna pole.
TSBBOD1752017-10-15. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. TSB - RIO (SC) FRONT LICENSE PLATE BRACKET INSTALLATION - This bulletin provides information regarding the installation of the front license plate bracket on 2018MY~ Rio (SC) vehicles.

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