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Service bulletin 20NA033

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 id10172809
Published by NHTSA2020-03-30
Manufacturer's number20NA033
Manufacturer's date2020-02-26
NHTSA componentSUSPENSION; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

This technical bulletin provides a procedure to modify the rear suspension rebound pin and reinstall to correct a condition of Squeak/Creak Noise from Rear Suspension.

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

Equipment and accessories, Suspension

Vehicles listed
BUICK ENCLAVE2018, 2019, 2020
CADILLAC XT62020
CHEVROLET BLAZER2019, 2020
CHEVROLET TRAVERSE2018, 2019, 2020
GMC ACADIA2020

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
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.
05-03-07-009L2025-03-08. Service bulletin. This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
05-03-08-002J2024-09-20. Service bulletin. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
05-03-08-002J2024-09-20. Service bulletin. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
22-NA-2392024-08-15. Service bulletin. This technical bulletin provides a procedure to inspect and if need be, to remove the lower strut isolator to clean and scuff if the spring was rubbing against the fender area.
22-NA-2392024-06-18. Service bulletin. This technical bulletin provides a procedure to inspect and if need be, to remove the lower strut isolator to clean and scuff if the spring was rubbing against the fender area.
15-00-89-004G2024-05-15. Service bulletin. This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
23-NA-0642024-05-02. Service bulletin. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
20-NA-1322024-04-23. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
17-NA-0522024-04-23. Service bulletin. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.