# Service bulletin PIT5926A

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: 10217779
- Published by NHTSA: 2022\-08\-15
- Manufacturer's number: PIT5926A
- Manufacturer's date: 2022\-07\-21
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

## NHTSA's summary

This Preliminary information communicates information on correcting a rattle noise from the underbody exhaust heat shield.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10217779-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10217779-9999.pdf)

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

## Components

Engine, Exhaust and emissions, Exhaust manifold, pipes and muffler

## Vehicles listed

- 2022 to 2023 CADILLAC ESCALADE
- 2021 CADILLAC ESCALADE NA
- 2021 to 2023 CHEVROLET SILVERADO 1500
- 2021 to 2023 CHEVROLET SILVERADO 2500
- 2023 CHEVROLET SILVERADO 3500
- 2021 to 2023 CHEVROLET SUBURBAN
- 2021 to 2023 CHEVROLET TAHOE
- 2021 to 2023 GMC SIERRA 1500
- 2021 to 2023 GMC SIERRA 2500
- 2023 GMC SIERRA 3500
- 2021 to 2023 GMC YUKON

## Other bulletins for the same vehicles and component

- [PIT6077](/bulletins/10246019.md), 2023-12-04, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This Preliminary information communicates an issue with the exhaust tailpipe tip misaligned and dealership are to replace the muffler.
- [21NA095](/bulletins/10214206.md), 2022-06-21, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This technical bulletin provides a procedure to seal the exhaust at the UFSCR and Tailpipe flange.
- [PIT5819](/bulletins/10190361.md), 2021-04-19, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This Preliminary information communicates in temperatures below freezing, it may be noticed that exhaust is only exiting from the right hand exhaust tailpipe. The cause of this condition is a low point in left side tailpipe which results in condensation building up at the low point in the tailpipe. In low temperatures the condensation can freeze and form ice limiting the flow of exhaust out of the left tailpipe. Dealers are to drill a small hole in the left tailpipe to allow condensation to drain.
- [16NA380](/bulletins/10183132.md), 2020-11-30, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.

JSON: [/v1/bulletins/10217779](/v1/bulletins/10217779)

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