# Service bulletin TSB\_ELE378

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.

- Type: Service bulletin
- NHTSA id: 11015973
- Published by NHTSA: 2025\-03\-26
- Manufacturer's number: TSB\_ELE378
- Manufacturer's date: 2025\-03\-20
- Campaign id or software version: SA611
- NHTSA component: ELECTRICAL SYSTEM
- Manufacturer's system: ELE

## NHTSA's summary

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 affected vehicles may encounter the following issues: remote Start/Climate Control function not working, vehicle Status on the Kia Access App not updating, connected routing not functioning properly.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11015973-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11015973-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2020 KIA CADENZA
- 2022 to 2024 KIA CARNIVAL
- 2022 to 2024 KIA EV6
- 2020 to 2024 KIA FORTE
- 2021 to 2024 KIA K5
- 2016 to 2017 KIA K900
- 2019 to 2020 KIA K900
- 2020 to 2025 KIA NIRO
- 2019 to 2025 KIA NIRO EV
- 2018 to 2025 KIA NIRO PHEV
- 2019 to 2020 KIA OPTIMA
- 2020 KIA OPTIMA HYBRID
- 2017 to 2020 KIA OPTIMA PHEV
- 2021 to 2023 KIA RIO
- 2021 to 2025 KIA SELTOS
- 2020 to 2023 KIA SORENTO
- 2021 to 2024 KIA SORENTO HYBRID
- 2022 to 2024 KIA SORENTO PHEV
- 2020 to 2025 KIA SOUL
- 2017 to 2019 KIA SOUL EV
- 2020 to 2025 KIA SPORTAGE
- 2023 to 2025 KIA SPORTAGE HYBRID
- 2023 to 2025 KIA SPORTAGE PHEV
- 2022 to 2023 KIA STINGER
- 2020 to 2025 KIA TELLURIDE

## Recalls for the same vehicles and component

- [2026327](/recalls/tc/2026327.md), 2026-07-03: Electrical
- [26V431000](/recalls/nhtsa/26V431000.md), 2026-07-02: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [25V874000](/recalls/nhtsa/25V874000.md), 2025-12-17: TRAILER HITCHES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [25V649000](/recalls/nhtsa/25V649000.md), 2025-09-25: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:FAN/MOTOR; ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
- [25V024000](/recalls/nhtsa/25V024000.md), 2025-01-17: SEATS; ELECTRICAL SYSTEM:WIRING
- [25V006000](/recalls/nhtsa/25V006000.md), 2025-01-13: ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE; EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:HEADLIGHTS
- [24V867000](/recalls/nhtsa/24V867000.md), 2024-11-18: ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY
- [2024345](/recalls/tc/2024345.md), 2024-06-14: Electrical
- [2024323](/recalls/tc/2024323.md), 2024-06-06: Electrical
- [24V358000](/recalls/nhtsa/24V358000.md), 2024-05-21: ELECTRICAL SYSTEM:PROPULSION SYSTEM:SHOCK PROTECTION

## Other bulletins for the same vehicles and component

- [WTY046\_REIMB](/bulletins/11037623.md), 2026-10-01, Warranty extension: VISIBILITY/WIPER; ELECTRICAL SYSTEM. WARRANTY EXTENSION CAMPAIGN: REIMBURSEMENT FORM \(WTY046\) \- This document is a Reimbursement Request form that was mailed with the customer letter advising them to submit the form if they had paid for repairs for this same matter prior to the Warranty Extension Campaign program launch.
- [WTY046\_QA](/bulletins/11037620.md), 2026-09-30, Warranty extension: VISIBILITY/WIPER; ELECTRICAL SYSTEM. WARRANTY EXTENSION CAMPAIGN: QUESTION AND ANSWER \(WTY046\) \- This document is the Question and Answer Guide containing the most frequently asked questions regarding the Warranty Extension Campaign WTY046.
- [WTY046\_OWNR](/bulletins/11037619.md), 2026-09-30, Warranty extension: VISIBILITY/WIPER; ELECTRICAL SYSTEM. WARRANTY EXTENSION CAMPAIGN: OWNER NOTIFICATION \(WTY046\) \- This document is the owner notification advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the Heating, Ventilation, and Air Conditioning \(HVAC\) blower motor in certain 2022 MY Stinger vehicles from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
- [WTY046\_DPSM](/bulletins/11037618.md), 2026-09-30, Warranty extension: ELECTRICAL SYSTEM; VISIBILITY/WIPER. WARRANTY EXTENSION CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO \(WTY046\) \- This document is the announcement to the dealer Parts and Service managers advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the Heating, Ventilation, and Air Conditioning \(HVAC\) blower motor in certain 2022 MY Stinger vehicles, manufactured from January 6, 2021 through December 24,2021, from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
- [WTY046\_DP](/bulletins/11037617.md), 2026-09-30, Warranty extension: VISIBILITY/WIPER; ELECTRICAL SYSTEM. WARRANTY EXTENSION CAMPAIGN: DEALER PRINCIPAL MEMO \(WTY046\) \- This document is the announcement to the dealer principals advising that Kia is extending the New Vehicle Limited Warranty coverage, to all owners, for repairs related to the Heating, Ventilation, and Air Conditioning \(HVAC\) blower motor in certain 2022 MY Stinger vehicles, manufactured from January 6, 2021 through December 24, 2021, from 5 years / 60,000 miles to 15 years / 180,000 miles, whichever comes first, starting from the date the vehicle was first put into service.
- [TSB\_ELE328\_R1](/bulletins/11037613.md), 2026-09-30, Service bulletin: ELECTRICAL SYSTEM. TECHNICAL SERVICE BULLETIN: CLUSTER SOFTWARE LOGIC IMPROVEMENT FOR LOWER THAN ACTUAL FUEL LEVEL INDICATION \- 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 to upgrade the software on the instrument cluster ‘CLU’ on some 2023\-2025MY Telluride \(ON\) vehicles equipped with a 12.3” in. TFT display, produced from August 31, 2022 through December 17, 2025, which may intermittently show a lower fuel level than what is actually remaining in the vehicle upon starting the engine after refueling.
- [SC370\_REIMB](/bulletins/11037605.md), 2026-09-30, Service campaign: ELECTRICAL SYSTEM; VISIBILITY/WIPER. VOLUNTARY SERVICE CAMPAIGN: REIMBURSEMENT FORM \(SC370\) \- This document is a Reimbursement Request form that was mailed with the customer letter advising them to submit the form if they had paid for repairs for this same matter prior to the Voluntary Service Campaign program launch.
- [SC370\_QA](/bulletins/11037604.md), 2026-09-30, Service campaign: VISIBILITY/WIPER; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER \(SC370\) \- This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC370.
- [SC370\_OWNR](/bulletins/11037603.md), 2026-09-30, Service campaign: VISIBILITY/WIPER; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION \(SC370\) \- This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign to relocate and install an improved blower motor 50\-ampere fuse, with an increased terminal width, within the front wiring harness fuse box assembly in certain 2022 MY Stinger vehicles that were originally sold in or are currently registered in one of the 7 high\-heat states \(AZ, FL, HI, LA, MS, NV, and TX\) to improve blower motor performance.
- [SC370\_DPSM](/bulletins/11037602.md), 2026-09-30, Service campaign: VISIBILITY/WIPER; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO \(SC370\) \- This document is the announcement to the dealer Parts and Service managers advising that Kia is conducting a Voluntary Service Campaign on certain 2022 MY Stinger vehicles, manufactured from February 22, 2021 through July 21, 2021, that were originally sold in or are currently registered in one of the 7 high\-heat states \(AZ, FL, HI, LA, MS, NV, and TX\) to improve blower motor performance.

JSON: [/v1/bulletins/11015973](/v1/bulletins/11015973)

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