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Service bulletin PIP5653K

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10201182
Published by NHTSA2021-09-13
Manufacturer's numberPIP5653K
Manufacturer's date2021-07-14
NHTSA componentSUSPENSION:FRONT

NHTSA's summary

This PI communicates that engineering is investigating a correction to a noise originating in the front of the vehicle.

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

Vehicles listed
CADILLAC ESCALADE NA2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2021
CHEVROLET TAHOE2021
GMC SIERRA 15002019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
25-NA-1102025-10-16. Service bulletin. This bulletin advises the techs that the front and or rear shocks need to be replaced as a set and not 1 at a time to avoid the road and ride performance not to be compromised.
25-NA-1102025-08-21. Service bulletin. This bulletin advises the techs that the front and or rear shocks need to be replaced as a set and not 1 at a time to avoid the road and ride performance not to be compromised.
PI0281L2025-06-12. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
24-NA-0992025-03-14. Service bulletin. This bulletin provides a service procedure to replace the sway bar bracket retainers if found the cause of the clunking noise from front of vehicle.
05-03-07-009L2025-03-08. Service bulletin. This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
19-NA-1292025-03-05. 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.
PIT5981B2025-03-02. Service bulletin. This Preliminary information communicates a tip when diagnosing an inoperative air leveling suspension system and to repair any loss of comm DTC's with the power window motors first.
PIT6144F2025-03-02. Service bulletin. This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 SYM 92 caused by a pinched air inlet hose to the suspension compressor air leveling system or internal issue with compressor assembly.
22-NA-1402025-02-28. Service bulletin. This informational bulletin advises the technician of an upgraded rear coil spring if the rear sags to much from loaded equipment.
21-NA-1382025-02-19. 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.