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Service bulletin 20NA133

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 id10178283
Published by NHTSA2020-08-10
Manufacturer's number20NA133
Manufacturer's date2020-06-12
NHTSA componentSEATS

NHTSA's summary

This informational bulletin provides information for dealers/technicians on the removal of the Z51 spoiler to install the high wing accessory spoiler.

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

Seats

Vehicles listed
CHEVROLET CORVETTE2020

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
PIT61802024-08-13. Service bulletin. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
06-00-89-029V2024-05-16. Service bulletin. This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
21NA1312022-06-21. Service bulletin. This service bulletin provides repair information to correct a customer concern of Memory Seat Module Does Not Adjust.
21NA1312021-08-09. Service bulletin. This service bulletin provides repair information to correct a customer concern of Memory Seat Module Does Not Adjust.