PIP5893
Service Bulletin Details
Public Details for: PIP5893
This preliminary information communicates that improper installation of the valve body may cause an unawanted service transmission message with no dtc's.
Models from 2023
| 2023 CADILLAC ESCALADE ESV |
| 2023 CHEVROLET SILVERADO 1500 |
| 2023 CHEVROLET SUBURBAN |
| 2023 CHEVROLET TAHOE |
| 2023 GMC SIERRA 1500 |
| 2023 GMC YUKON XL |
Models from 2022
| 2022 CADILLAC ESCALADE ESV |
| 2022 CHEVROLET SILVERADO 1500 |
| 2022 CHEVROLET SUBURBAN |
| 2022 CHEVROLET TAHOE |
| 2022 GMC SIERRA 1500 |
| 2022 GMC YUKON XL |
Models from 2021
| 2021 CADILLAC ESCALADE ESV |
| 2021 CHEVROLET SUBURBAN |
| 2021 CHEVROLET TAHOE |
| 2021 GMC YUKON XL |
Bulletin No.: PIP5893 Published date: 12/20/2022 Preliminary Information PIP5893 Diagnostic Aids For a Service Transmission Unable To Shift Soon Message Displayed Product Investigation Review Required Models Brand: Cadillac Model: Escalade Models Chevrolet Tahoe Chevrolet Silverado 1500 New (RPO J22, 12th VIN Digit = 5 or greater) Chevrolet Suburban Model Years: VIN: from to Engine: Transmissions: 2021 2023 ALL ALL All MQC, MHS, MHO 2021 2023 ALL ALL All MQC, MHS, MHU 2022 2023 ALL ALL All MQC, MHS 2021 2023 ALL ALL All MQC, MHS, MHU GMC Sierra 1500 New (RPO J22, 12th VIN Digit = 5 or greater) 2022 2023 ALL ALL All MQC, MHS GMC Yukon Models 2021 2023 ALL ALL All MQC, MHS Involved Region or Country North America Additional Options (RPO) MQC MHS MHU Condition Cause "Service Transmission Unable to shift soon" message displayed This may be caused by a broken or damaged park pawl actuator piston servo Correction: Some Technicians may nd shortly following a valve body replacement or removal, on a vehicle equipped with ETRS, the "Service Transmission Unable to shift soon" Message may be displayed on the DIC. When this happens, it is possible that there will be no DTC’S set when checking for DTC’S using Techline Connect/GDS2. This can happen due to the DTC’S being cleared following the replacement of the valve body and the subsequent MCVM learn and DTC clear being performed as part of the repair procedure. Due to the nature of this concern, the DTC’S are cleared, and the vehicle is not powered down correctly on the initial clear, it is possible for the vehicle to enter “Latent Fault Mode”. When this happens, the DTC’S will not initially reset and can take up to between 50 to 100 “trip cycles” with the fault present for the DTC to return. In rare cases the vehicle may come into the dealer with this message displayed and no DTC’S currently set, if this is encountered Global Warranty Management should be consulted to determine if any transmission repairs have recently been performed. Also, it may be necessary to speak with the customer to determine if repairs have been completed that may not have had time to show up on Global Warranty Management. If this is encountered, and the valve body was removed or replaced for service, the technician should remove the valve body, and the park pawl actuator servo should be inspected. If damage to the servo is seen (Example in the picture below) The valve body will need to be replaced as the park pawl actuator servo is not serviced separately. Note: Care should be taken when installing the valve body to follow proper SI procedure and verify the Park Pawl Actuator Lever (Item 1) is in the proper position and that the Park Pawl Piston Servo (Item 2) on the valve body (Whether new part or original removed part) is in the correct location per the appropriate SI procedure Version History Version Modi ed 1 12/19/2022 - Created on. © 2023 General Motors. All Rights Reserved.