WenmarOpen by Wenmar Pro

Service bulletin PIT6048

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10242296
Published by NHTSA2023-09-18
Manufacturer's numberPIT6048
Manufacturer's date2023-08-09
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

This Preliminary information communicates to dealership technicians and customers that engineering is aware of this and will be corrected with a new radio update in the future when released.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline, Automatic transmission

Vehicles listed
CADILLAC XT42024
CHEVROLET COLORADO2023
GMC CANYON2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
21-NA-1692023-09-06. Service bulletin. This service bulletin provides diagnostic information/procedures to aid the service technician in diagnosing 9T45/50/60 automatic transmissions with low mileage and DTCs current or history related to the control solenoids and valves.
17-NA-0662023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.