22-NA-101
Service Bulletin Details
Public Details for: 22-NA-101
This technical bulletin provides repair information to correct a customer concern of pto (power take-off) kicks out or intermittently disengages unwanted.
Models from 2022
2022 CHEVROLET SILVERADO 4500HD |
2022 CHEVROLET SILVERADO 5500HD |
2022 CHEVROLET SILVERADO 6500HD |
Models from 2021
2021 CHEVROLET SILVERADO 4500HD |
2021 CHEVROLET SILVERADO 5500HD |
2021 CHEVROLET SILVERADO 6500HD |
Models from 2020
2020 CHEVROLET SILVERADO 4500HD |
2020 CHEVROLET SILVERADO 5500HD |
2020 CHEVROLET SILVERADO 6500HD |
Models from 2019
2019 CHEVROLET SILVERADO 4500HD |
2019 CHEVROLET SILVERADO 5500HD |
2019 CHEVROLET SILVERADO 6500HD |
Service Bulletin Bulletin No.: 22-NA-101 Date: May, 2022 TECHNICAL Subject: PTO (Power Take-Off) Kicks Out or Intermittently Disengages Unwanted Brand: Model: Chevrolet Silverado 4500HD, 5500HD, 6500HD Involved Region or Country Model Year: from to 2019 2022 VIN: from to Engine: Transmission: United States, Canada, Mexico Additional Options (RPOs) Condition Some customers may comment that the PTO (Power Take Off) will kick out and/or disengages intermittently. Cause The cause of the condition may be a software concern with the Power Take Off Control Module (PTOM). The condition may happen if the wheel speed sensor has noise or shows movement with the PTO engaged. Correction Reprogram the Power Take-Off Control Module. Service Procedure Caution: Before downloading the update files, be sure the computer is connected to the internet through a network cable (hardwired). DO NOT DOWNLOAD or install the files wirelessly. If there is an interruption during programming, programming failure or control module damage may occur. • Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector. If there is an interruption during programming, programming failure or control module damage may occur. • Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming. Install a GM Authorized Programming Support Tool to maintain system voltage. Refer to www.gmdesolutions.com for further information. If not available, connect a fully charged 12 V jumper or booster pack disconnected from the AC voltage supply. DO NOT connect a battery charger. • Follow the on-screen prompts regarding ignition power mode, but ensure that anything that drains excessive power (exterior lights, HVAC blower motor, etc) is off Copyright 2022 General Motors LLC. All Rights Reserved. • Please verify that the radio time and date are set correctly before inserting USB drive into vehicle for programming, otherwise an error will result. • Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/ Maintenance (I/M) system status indicators to NO. Important: The service technician always needs to verify that the VIN displayed in the TLC left side drop down menu and the top center window match the VIN plate of the vehicle to be programmed prior to using Service Programming System 2 (SPS2) for programming or reprogramming a module. • For the TLC application, service technicians need to always ensure that the power mode (ignition) is “ON” before reading the VIN from the vehicle’s VIN master module and that they do not select a VIN that is already in the TLC application memory from a previous vehicle. • If the VIN that shows up in the TLC top center window after correctly reading the VIN from the vehicle does not match the VIN plate of the vehicle, manually type in the VIN characters from the vehicle VIN plate into the TLC top center window and use these for programming or reprogramming the subject module with the correct vehicle VIN and software and/or calibrations. Page 2 May, 2022 Bulletin No.: 22-NA-101 • The Engine Control Module (ECM) is the master module (for VIP vehicles) that TLC reads to determine the VIN of the vehicle. If the VIN read from the vehicle by TLC does not match the VIN plate of the vehicle, the ECM also needs to be reprogrammed with the correct VIN, software and calibrations that match the vehicle’s VIN plate. • The Body Control Module (BCM) is the master module (for GEM vehicles) that TLC reads to determine the VIN of the vehicle. If the VIN read from the vehicle by TLC does not match the VIN plate of the vehicle, the BCM also needs to be reprogrammed with the correct VIN, software and calibrations that match the vehicle’s VIN plate. Caution: Be sure the VIN selected in the drop down menu (1) is the same as the vehicle connected (2) before beginning programming. 5743643 Bulletin No.: 22-NA-101 May, 2022 Page 3 Important: If the vehicle VIN DOES NOT match, the message below will be shown 5877000 5644477 Important: Techline Connect and TIS2WEB screens shown above. Important: If the same calibration/software warning is noted on the TLC or SPS Summary screen, select OK and follow screen instructions. After a successful programming event, the WCC is located in the Service Programming System dialogue box of the SPS Summary screen. No further action is required. Refer to the Warranty section of the bulletin. 1. Reprogram the Power Take Off Control module. Refer to K44 Power Take-off Control Module: Programming and Setup in the Service Manual. Page 4 May, 2022 Bulletin No.: 22-NA-101 Important: The procedure in SI does not have a process for programming but does have information to capture on the PTO, follow normal SPS programming steps. 5644478 Note: The screenshots above are an example of module programming and may not be indicative of the specific module that is being programmed. Module selection and VIN information have been blacked out. Important: To avoid warranty transaction rejections, you MUST record the warranty claim code provided on the Warranty Claim Code (WCC) screen shown above on the job card. Refer to callout 1 above for the location of the WCC on the screen. 2. Record Warranty Claim Code on job card for warranty transaction submission. Warranty Information For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Labor Operation Description Labor Time *2888698 Reprogram Power Take-Off Control Module Reprogramming for Software Anomalies 0.3 hr *This is a unique Labor Operation for Bulletin use only. Bulletin No.: 22-NA-101 May, 2022 Version 1 Modified Released May 12, 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. Page 5 WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION