Service bulletin PIE0638
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 | 10200111 |
| Published by NHTSA | 2021-08-09 |
| Manufacturer's number | PIE0638 |
| Manufacturer's date | 2021-05-17 |
| NHTSA component | FORWARD COLLISION AVOIDANCE; LANE DEPARTURE |
NHTSA's summary
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to having a No Start, Forward Collision Alert, Adaptive Cruise Control and/or Lane Keep Assist Inoperable condition.
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
Driver assistance
| CHEVROLET SUBURBAN | 2021 |
|---|---|
| CHEVROLET TAHOE | 2021 |
| GMC YUKON | 2021 |
| GMC YUKON XL | 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 25-NA-118 | 2025-09-10. Service bulletin. This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues. |
|---|---|
| PIT5551P | 2024-12-05. Service bulletin. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert". |
| PIT6144 | 2024-04-15. Service bulletin. This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 caused by a pinched air inlet hose to the suspension compressor air leveling system. |
| PIT4322P | 2024-03-18. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed. |
| PIT5551N | 2024-03-18. Service bulletin. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert". |
| PIT6087 | 2023-12-18. Service bulletin. This Preliminary information communicates the proper installation of the Left and Right Side Obstacle Detection Control Modules |
| PIT5551M | 2023-12-18. Service bulletin. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert". |
| PIT5551L | 2023-09-18. Service bulletin. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert". |
| PIT6050 | 2023-09-18. Service bulletin. This Preliminary information communicates to dealership technicians that if they receive a radio with the 2 stickers as noted above, the radio was remanufactured with missing components and will need to order another radio unit from the ESC to properly repair the vehicle at this time. |
| PIT5551K | 2023-08-21. Service bulletin. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert". |