23-NA-029
Service Bulletin Details
Public Details for: 23-NA-029
This service bulletin provides a procedure to locate a possible shaft not inserted into the differential carrier that may have popped out to correct customer concerns of transmission grinds when put into gear, slipping, no movement when shi
- 2023 -
Models from 2023
2023 CADILLAC XT5 |
2023 CADILLAC XT6 |
2023 CHEVROLET BLAZER |
2023 CHEVROLET TRAVERSE |
2023 GMC ACADIA |
Bulletin No.: Service Bulletin Date: 23-NA-029 September, 2023 TECHNICAL Subject: Brand: Cadillac Chevrolet GMC Transmission Grinds When Put Into Gear, Slipping, No Movement When Shifted Into Drive or Reverse Model: Model Year: from to VIN: from to Engine: Transmission: XT5 M3W XT6 Blazer 2023 2023 LGX, LFY Traverse Acadia M3V M3W Involved Region or Country North America, Europe, Uzbekistan, Middle East, Israel, Palestine, Bolivia (West), Chile (West), Colombia (West), Ecuador (West), Peru (West), Cadillac Korea (South Korea), Egypt Condition Some customers may comment on one or more of the following conditions: • Grinding noise • Transmission slipping • No movement when shifted in drive or reverse Cause This condition may be caused by the left side axle (driver's side axle) is not fully seated in the transmission. Correction Remove the transmission from the vehicle and replace the front differential carrier sun gear and the left axle shaft following SI published procedures. 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. Service Procedure Refer to Front Differential Carrier Removal in SI and Front Differential Carrier Installation in SI. Copyright 2023 General Motors LLC. All Rights Reserved. Page 2 September, 2023 Bulletin No.: 23-NA-029 Parts Information Causal Part Description Part Number Qty X GEAR, FRT DIFF CARR SUN 24290255 1 N/A SEAL, A/TRNS FLUID PUMP 24268389 1 N/A GASKET, T/ CV HSG 24267848 1 84990736 (Traverse LFY, M3V) SHAFT, FRT WHL DRV HALF N/A 84990735 (XT5 and Acadia LGX, M3W) 1 84990734 (XT6, LGX, M3W and Blazer LGX, M3V) N/A WASHER, FRT WHL DRV SHF 11611965 2 N/A FLUID, A/TRANS Refer to EPC As Required Warranty Information For vehicles repaired under the Powertrain coverage, use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. Labor Operation Description Labor Time 8486258* 8.4 hr Add 3.5 hr for LGX & AWD Add Add Front Differential Carrier Sun Gear Replacement .4 hr for LFY & FWD 5.6 hr for LFY & AWD Add 2.3 hr for XT6 w/LGX & FWD Add 5.2 hr for XT6 w/LGX & AWD *This is a unique Labor Operation for Bulletin use only. Version 2 Modified Released April 11, 2023 Revised September 07, 2023 - Updated the SHAFT, FRT WHL DRV HALF Part Numbers in the Parts Information section. 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