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Service bulletin PIC6553A

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 id11006457
Published by NHTSA2024-08-16
Manufacturer's numberPIC6553A
Manufacturer's date2024-08-16
NHTSA componentPOWER TRAIN

NHTSA's summary

This Preliminary information communicates the direction to take when a customer complains about a vibration when parking on a steep slope with engine running.

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

Vehicles listed
BUICK ENCORE GX2020, 2021, 2022, 2023, 2024
BUICK ENVISTA2024, 2025
CHEVROLET TRAILBLAZER2021, 2022, 2023, 2024, 2025
CHEVROLET TRAX2024, 2025

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

Recalls for the same vehicles and component
20205202020-10-29. Powertrain

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
23-NA-1192025-10-16. Service bulletin. This service bulletin provides service procedure information to correct a customer concern of Shift to Park Displayed on DIC When Vehicle is in- Park, No Start - DTC B000A Set.
PI0281L2025-06-12. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
25-NA-0012025-04-14. Service bulletin. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
19-NA-2002025-04-10. Service bulletin. This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.
PIP6036A2025-04-07. Service bulletin. This Preliminary information communicates diagnostic aids for a surge or fishbite concern
25-NA-0012025-03-14. Service bulletin. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
PIP5975A2025-03-02. Service bulletin. This Preliminary information communicates information on what dealer technicians should due if they encounter a broken chain on a CVT transmission
25-NA-0012025-02-27. Service bulletin. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
25-NA-0012025-02-18. Service bulletin. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
25-NA-0012025-02-06. Service bulletin. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.