PIT5986
Service Bulletin Details
Public Details for: PIT5986
This preliminary information communicates a diagnostic tip for a thump, click, pop, clunk type noise that is heard from the front end. Dealers are to inspect for something contacting the grill shutters as they open and close.
Models from 2023
| 2023 CADILLAC ESCALADE ESV |
| 2023 CHEVROLET SILVERADO 1500 |
| 2023 CHEVROLET SUBURBAN |
| 2023 CHEVROLET TAHOE |
| 2023 GMC SIERRA 1500 |
| 2023 GMC YUKON XL |
Models from 2022
| 2022 CADILLAC ESCALADE ESV |
| 2022 CHEVROLET SILVERADO 2500 |
| 2022 CHEVROLET SUBURBAN |
| 2022 CHEVROLET TAHOE |
| 2022 GMC SIERRA 1500 |
| 2022 GMC YUKON XL |
Models from 2021
| 2021 CADILLAC ESCALADE ESV |
| 2021 CHEVROLET SILVERADO 1500 |
| 2021 CHEVROLET SUBURBAN |
| 2021 CHEVROLET TAHOE |
| 2021 GMC SIERRA 1500 |
| 2021 GMC YUKON XL |
Bulletin No.: PIT5986 Published date: 02/16/2023 Preliminary Information PIT5986 Diagnostic Tip: Intermittent Thump Clunk Pop Click Noise From Front End (Contact With Active Grill Shutters) Models Brand: Model: Model Years: VIN: from to Engine: Transmissions: Cadillac Escalade Models 2021 - 2023 All All All All Chevrolet Silverado 2021 - 2023 All All All All Chevrolet Suburban 2021 - 2023 All All All All Chevrolet Tahoe 2021 - 2023 All All All All GMC Sierra 2021 - 2023 All All All All GMC Yukon Models 2021 - 2023 All All All All Involved Region or Country North America Condition Some customers may comment on a thump, clunk, pop, or click type noise coming from the front end. In some cases, the noise may be felt in the front driver/passenger oor or brake pedal. The noise is typically heard once the vehicle has been driven above 45 MPH, then coming to a stop, or releasing brake pedal after a stop. Cause The cause of this noise could be something contacting the Active Grill Shutters as they open and close. Correction: To help determine if the noise is from the Active Grill Shutters contacting something, perform the following. With the shutters open, remove the fuse that powers the grill shutter actuator. Then test the vehicle and see if the noise goes away. If the noise goes away remove the intake air splash shield to inspect the grill shutters for any contact. Some known items that have been found contacting the shutters could be a mispositioned horn bracket, an unsecured intake air duct, stones, ice, etc. Warranty Information The correction for this concern may be any one of several repairs described above. For vehicles repaired under warranty, please use the appropriate warranty labor operation based on the actual cause and repair. Version History Version Modi ed 1 02/16/2023 - Created on. © 2023 General Motors. All Rights Reserved.