# Service bulletin PIP5978

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.

- Type: Service bulletin
- NHTSA id: 11006234
- Published by NHTSA: 2024\-08\-12
- Manufacturer's number: PIP5978
- Manufacturer's date: 2024\-08\-12
- NHTSA component: POWER TRAIN

## NHTSA's summary

This Preliminary information communicates the possibility of dtc p0299 setting as a result of the vacuum supply line from the vacuum pump to the wastegate solenoid being restricted with adhesive bonding material.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11006234-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11006234-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2020 to 2024 BUICK ENCORE GX
- 2024 BUICK ENVISTA
- 2021 to 2024 CHEVROLET TRAILBLAZER
- 2024 CHEVROLET TRAX

## Recalls for the same vehicles and component

- [2020520](/recalls/tc/2020520.md), 2020-10-29: Powertrain

## Other bulletins for the same vehicles and component

- [23\-NA\-119](/bulletins/11024331.md), 2025-10-16, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. 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.
- [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- [25\-NA\-001](/bulletins/11016963.md), 2025-04-14, Service bulletin: POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
- [19\-NA\-200](/bulletins/11016943.md), 2025-04-10, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.
- [PIP6036A](/bulletins/11016668.md), 2025-04-07, Service bulletin: POWER TRAIN. This Preliminary information communicates diagnostic aids for a surge or fishbite concern
- [25\-NA\-001](/bulletins/11015623.md), 2025-03-14, Service bulletin: POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
- [PIP5975A](/bulletins/11014630.md), 2025-03-02, Service bulletin: POWER TRAIN. This Preliminary information communicates information on what dealer technicians should due if they encounter a broken chain on a CVT transmission
- [25\-NA\-001](/bulletins/11014567.md), 2025-02-27, Service bulletin: POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
- [25\-NA\-001](/bulletins/11014291.md), 2025-02-18, Service bulletin: POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
- [25\-NA\-001](/bulletins/11013892.md), 2025-02-06, Service bulletin: POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.

JSON: [/v1/bulletins/11006234](/v1/bulletins/11006234)

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