# Service bulletin PIP6101A

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: 11029264
- Published by NHTSA: 2026\-03\-03
- Manufacturer's number: PIP6101A
- Manufacturer's date: 2026\-03\-03
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

The document makes technicians aware of a valvetrain tick noise that is created by one or more soft hydraulic valve lash adjusters. The soft lash adjuster concern is due to debris from the valve rocker arm, entering into the lash adjuster. The document instructs the technician to replace all of the lash adjusters and rocker arms in the entire engine if any soft lash adjusters are found.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029264-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029264-9999.pdf)

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

## Vehicles listed

- 2025 to 2026 BUICK ENCLAVE
- 2025 to 2026 BUICK ENVISTA
- 2025 to 2026 CADILLAC CT4
- 2025 to 2026 CADILLAC CT5
- 2025 CADILLAC XT4
- 2026 CADILLAC XT4
- 2025 to 2026 CADILLAC XT5
- 2025 CADILLAC XT6
- 2026 CADILLAC XT6
- 2025 to 2026 CHEVROLET BLAZER
- 2025 to 2026 CHEVROLET COLORADO
- 2025 to 2026 CHEVROLET SILVERADO 1500
- 2025 to 2026 CHEVROLET TRAVERSE
- 2025 to 2026 GMC ACADIA
- 2025 to 2026 GMC CANYON
- 2025 to 2026 GMC SIERRA 1500

JSON: [/v1/bulletins/11029264](/v1/bulletins/11029264)

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