Service bulletin PIT6177A
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 | 11007736 |
| Published by NHTSA | 2024-09-12 |
| Manufacturer's number | PIT6177A |
| Manufacturer's date | 2024-09-12 |
| NHTSA component | SUSPENSION |
NHTSA's summary
This Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel fuel contamination that may occur during refueling after the fuel nozzle is removed from the fuel filler pipe. Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.
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
Suspension
| CHEVROLET SILVERADO 1500 | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| GMC SIERRA 1500 | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 25-NA-152 | 2025-11-15. Service bulletin. this bulletin advises the tech not to replace the shock for possible air leak, but to replace the air valve on the shock. |
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| PI0281L | 2025-06-12. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers. |
| 05-03-07-009L | 2025-03-08. Service bulletin. This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles. |
| 19-NA-129 | 2025-03-05. Service bulletin. This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise coming from the rear of the vehicle. |
| 21-NA-138 | 2025-02-19. Service bulletin. This service bulletin provides a repair procedure to correct a customer concern of a Squeak, Grind or Clunking Noise from Rear Leaf Springs. |
| PIT6304A | 2025-02-03. Service bulletin. This Preliminary information communicates a diagnostic Aid from root causing DTC: C1197 sym 92 caused by a pinched air inlet hose to the suspension compressor air leveling system. |
| PIT6304 | 2024-12-17. Service bulletin. This Preliminary information communicates a diagnostic Aid from root causing DTC: C1197 caused by a pinched air inlet hose to the suspension compressor air leveling system. |
| PIT6255 | 2024-12-05. Service bulletin. This Preliminary information communicates a diagnostic tip when experiencing an error when trying to perfom a trim height learn or review pressure data in GDS |
| 19-NA-129 | 2024-10-17. Service bulletin. This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise coming from the rear of the vehicle. |
| 05-03-08-002J | 2024-09-20. Service bulletin. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak. |