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Service bulletin 20-BD-013H

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 id10174805
Published by NHTSA2020-05-07
Manufacturer's number20-BD-013H
Manufacturer's date2020-04-13
NHTSA componentVISIBILITY

NHTSA's summary

This bulletin describes the procedure to diagnose and repair a window exhibiting noise while lowering and raising.

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

Glass, wipers and mirrors

Vehicles listed
HYUNDAI SONATA2020

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
24-BD-001H2024-03-05. Service bulletin. This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades.
23-BD-002H2023-02-02. Service bulletin. This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.
20-BD-020H2021-01-09. Service bulletin. This bulletin describes the procedure to replace the front door module assembly if the front door window cannot close or the door regulator cables are separated from the regulator track.
20-BD-013H-12020-12-08. Service bulletin. This bulletin describes the procedure to diagnose and repair a window exhibiting noise while lowering and raising.
20-HA-003H2020-11-06. Service bulletin. Certain 2020MY Sonata vehicles (DN8A) may experience an inoperative air conditioning system with cold air not blowing from the vents. This condition may be caused by an electrical terminal connection in the engine room junction box. Follow the procedure in this bulletin to inspect and if necessary, repair the terminal in the engine room junction box.