WenmarOpen by Wenmar Pro

Over-the-air update 661.20

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)
TypeOver-the-air update
NHTSA id11031828
Published by NHTSA2026-05-01
Manufacturer's number661.20
Manufacturer's date2026-05-01
Campaign id or software version661.20
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemARB: ARB (Articulated Running Boards)

NHTSA's summary

• Improvements to reliability when extending the running boards on your 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.

Vehicles listed
CADILLAC ESCALADE2024
CADILLAC ESCALADE ESV2024
CHEVROLET SUBURBAN2024
CHEVROLET SUBURBAN 15002024 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2024
GMC YUKON2024
GMC YUKON XL2024

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