Service campaign N252527500
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 campaign |
|---|---|
| NHTSA id | 11025484 |
| Published by NHTSA | 2025-11-12 |
| Manufacturer's number | N252527500 |
| Manufacturer's date | 2025-11-12 |
| Campaign id or software version | N252527500 |
| NHTSA component | SUSPENSION |
NHTSA's summary
Certain vehicles may have a condition in which the Rear Spring U-bolt fasteners are torqued below specification. Dealers are to torque both the right and left side Rear Spring U-bolt fasteners to specification.
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 2500 | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| CHEVROLET SILVERADO 3500 | 2025, 2026 (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. |
|---|---|
| N252507500 | 2025-09-17. Service campaign. Certain vehicles may have a condition in which the rear lower control arm bolts were not fully torqued. Dealers are to perform a rear wheel alignment and properly torque all four rear lower control arm bolts. |
| N252508800 | 2025-06-24. Service campaign. Customer Satisfaction Program. Certain vehicles listed above may have improper lubrication of the rear axle assembly. Dealers will replace the rear axle. |
| 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 |