22-NA-247
Service Bulletin Details
Public Details for: 22-NA-247
This service bulletin provides information to dealership personnel that after performing a brake inspection, brake pad replacement, or any other repair that requires the caliper piston to be reseated may be causing dtc C05B0 to falsely set
- 2023 - 2022 - 2021 - 2020 - 2019 -
Models from 2023
Models from 2022
Models from 2021
Models from 2020
Models from 2019
2019 CADILLAC CT6 |
2019 CADILLAC XT4 |
2019 CHEVROLET SILVERADO 1500 |
2019 GMC SIERRA 1500 |
Bulletin No.: Service Bulletin Date: 22-NA-247 December, 2022 INFORMATION Subject: Information on eBoost Applications (K160 Brake System Control Module) for False DTC C05B0 Setting After a Brake Inspection, Brake Pad Replacement, or Any Other Work that Would Require Caliper Piston to Be Reseated Brand: Model: BrightDrop EV600 Buick 2022 2022 Enclave 2020 2022 LaCrosse (China) 2020 Regal (China) CT4 CT5 Escalade Models 2021 XT4 2019 Blazer Corvette Equinox 2020 2023 2021 2023 Silverado 1500 (New Model) 2019 2019 Silverado 1500 2020 2021 2022 2022 2023 2023 2021 2023 Silverado 1500 Suburban Tahoe Copyright 2022 General Motors LLC. All Rights Reserved. — Transmission: — — 2020 Malibu (China) Silverado 1500 New (RPO J22, VIN Digit 5 = A / D) — Engine: 2023 Equinox (China) Silverado 1500 LTD (RPO J21, VIN Digit 5 = W / Y) to 2020 2019 XT6 VIN Breakpoint: from 2023 CT6 XT5 Chevrolet to Envision Verano (China) Cadillac Model Year: from Page 2 Brand: GMC December, 2022 Model Year: Model: from to Acadia 2020 HUMMER EV 2022 Sierra 1500 (New Model) 2019 2019 Sierra 1500 2020 2021 2022 2022 Sierra 1500 Limited (RPO J21, VIN Digit 5 = 8 / 9) Sierra 1500 New (RPO J22, VIN Digit 5 = H / U) Sierra 1500 2023 Terrain Yukon Models Bulletin No.: 22-NA-247 VIN Breakpoint: from to — — Engine: Transmission: — — 2023 2023 2021 Involved Region or Country North America, China Condition The purpose of this bulletin is to inform dealership personnel that after performing a brake inspection, brake pad replacement, or any other repair that requires the caliper piston to be re-seated may be causing DTC C05B0 to falsely set for eBoost applications. Service Procedure Important: This technical service bulletin (TSB) can only be completed by certified repair facilities who have met all specific training, tool and equipment requirements pertaining to the vehicle Brand and Model serviced. Repairs must be performed by a technician who has successfully completed the required training. Important: Service agents must comply with all International, Federal, State, Provincial, and/or Local laws applicable to the activities it performs under this bulletin, including but not limited to handling, deploying, preparing, classifying, packaging, marking, labeling, and shipping dangerous goods. In the event of a conflict between the procedures set forth in this bulletin and the laws that apply to your dealership, you must follow those applicable laws. Please refer to the diagnostic procedure for DTC C05B0 and verify that there are no leaks in the any of the brake components before proceeding onto the following steps to correct DTC C05B0 from falsely setting: 1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in SI. 2. Ensure that the brake pads are fully seated to the rotors and that the brake pedal is firm. 2.1. If the brake pedal is firm and the brake pads are fully seated, continue onto step 3. 2.2. If the brake pedal is not firm and/or the brake pads are not fully seated, gradually apply the brake pedal to approximately 2/3 of its travel distance. Wait 15 seconds and repeat until the brake pedal is firm and brake pads are fully seated. Proceed once brake pedal is firm and brake pads are fully seated. Note: If you are unable to achieve getting a firm brake pedal and/or unable to fully seat the brake pads, stop here and refer back to the diagnostic procedure for DTC C05B0. 3. Reconnect the negative battery cable. 4. Clear DTC codes. • If DTC C05B0 clears, everything is good. • If DTC C05B0 resets, please refer back to the diagnostic procedure in SI for DTC C05B0. Version 1 Modified Released December 06, 2022 GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION