GMC Sierra Denali

Occurrence date: November 2, 2025

Processing type: damage to my car

total repair cost: 2.46 million won

mileage: 6,839km

Completion date: August 7, 2025

Date of receipt: August 6, 2025

maintenance company: GM Korea Daejeon Service Center Co., Ltd.

Maintenance company address: No information

Target: Vehicles manufactured between (June 22, 2021 - May 28, 2024)

Contact us: GM Korea main number: 080-3000-5000 / GMC main number: 080-800-3305

target device: Prime mover (power generation device) Others

Defect details: <p>Possibility of bearing damage due to foreign substances generated during the manufacturing process of the connecting rod or due to the manufacturing quality of the crankshaft has been confirmed. As a result, when the engine is damaged, warning symptoms such as abnormal engine noise, engine warning lights, high engine RPM, abnormal gear shifting, reduced power, and inability to restart may occur. If the engine is damaged, loss of propulsion and engine shutdown while driving may occur, which may increase the risk of collision and impede safety. Recall </p><p><br></p><p><Production date by target vehicle></p><p>Tahoe: 2021.06.22~2022.11.23</p><p>Sierra: 2022.06.08~2024.05.28</p>

Recall Post Date: August 13, 2025

Correction method: <p>After engine diagnosis, engine repair or replacement is performed. In addition, regardless of the diagnosis results, the warranty period for this problem has been extended from the existing 5 years or 100,000 km to 10 years or 24 km.</p><p>1. No problem found during diagnosis: Replaced with high-viscosity engine oil with excellent wear resistance, replaced engine oil cap, provided instructions for using high-viscosity engine oil</p><p>2. Problem found during diagnosis: Engine replacement </p>

Correction period: From August 13, 2025

Date of change: June 11, 2025

Transaction type: Trader transaction transfer

Driving distance when changing: 3,083km

Target: Vehicles manufactured between (March 17, 2020 - April 12, 2024)

Contact us: GM Korea representative number: 080-3000-5000

target device: Fuel equipment and other

Defect details: <p>If the fuel pump control module is exposed to excessive moisture, some IC chips (integrated circuits) may be damaged. In this case, fuel may not be supplied properly, resulting in an engine warning light and potential engine failure. </p><p><br></p><p><Production date by target vehicle></p><p>All New Malibu: 2020.03.17~2022.08.31</p><p>Trax: 2020.10.15~2022.09.02</p><p>Equinox: 2021.03.24~2022.09.22</p><p>Traverse: 2021.05.03~2022.10.27</p><p>Tahoe: 2021.06.22~2022.09.12</p><p>Colorado: 2022.09.28~2024.02.20</p><p>Trax Crossover: 2022.12.08~2023.08.07</p><p>Trailblazer: 2023.02.20~2023.08.22</p><p>Sierra: 2022.06.08~2024.04.12</p>

Recall Post Date: December 23, 2024

Correction method: <p>Replacement of fuel pump control module </p><p><br></p><p><Corrective action period for each target vehicle></p><p>All New Malibu, Trax, Traverse, Tahoe: From December 23, 2024 until completion </p><p>Trax Crossover, Trailblazer, Equinox, Colorado. GMC Sierra: From January 20, 2025 until completion. </p><p><br></p><p><<b><u><span style="font-size: 10pt;">As the corrective action period differs for each target vehicle, please contact the manufacturer's customer service center (080-3000-5000) for details.</span></u></b> I hope.></p>

Correction period: From December 23, 2024

Date of change: November 12, 2024

Transaction type: Trader transaction transfer

Driving distance when changing: 3,077km

period: November 2024 ~ June 2025 (7 months in total)

Target: Vehicles manufactured between (November 16, 2022 and March 24, 2023)

Contact us: GM Korea main number: 080-3000-5000 / GM Korea GMC main number: 080-800-3305

target device: Braking device, etc.

Defect details: <p>Due to a software error in the electronic brake control module, in the event of a brake fluid leak, the brake warning light on the instrument panel may not come on, and in this case, the risk of collision may increase due to failure to recognize the deterioration of brake pedal performance. </p><p><br></p><p><Production date by target vehicle></p><p>Tahoe: 2022.11.16~2022.11.23</p><p>GMC Sierra: 2023.01.27~2023.03.24</p>

Recall Post Date: October 08, 2024

Correction method: <p>Electronic brake control module software update </p>

Correction period: From October 8, 2024

Inspection date: September 6, 2024

inspection station: Dongtan Business Trip_Daehan Industrial Company (Pyeongtaek City)

Inspection classification: Re-inspection (1 re-inspection)

Driving distance during inspection: 2,962km

first time buyer: corporation

New car list price: 93.3 million won

Production country: USA

New car delivery price: No information

First registration date: August 21, 2023

Production date and time: January 30, 2023

Address at time of purchase: Pyeongtaek-si, Gyeonggi-do