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Service bulletin 20NA233

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 id10187764
Published by NHTSA2021-03-01
Manufacturer's number20NA233
Manufacturer's date2021-01-04
NHTSA componentEQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL:SOFTWARE

NHTSA's summary

This technical bulletin provides repair information to correct a customer concern of Long Range Radar setting DTC U3000 49.

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

Driver assistance, Equipment and accessories, Adaptive cruise control

Trouble codes named

U3000

Vehicles listed
BUICK ENVISION2021
CADILLAC ESCALADE ESV2021
CADILLAC ESCALADE NA2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2021
CHEVROLET TAHOE2021
GMC YUKON2021
GMC YUKON XL2021

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-0702025-04-24. Service bulletin. This service bulletin provides information on Super Cruise IME Recognition.
24-NA-0902024-06-18. Service bulletin. This technical bulletin provides repair information to correct a customer concern of SuperCruise Unavailable – No road Info: Road Expansion.
24-NA-0302024-02-23. Service bulletin. This informational bulletin provides information on when the customer engage SuperCruise, their vehicle will immediately veer to the left and center itself on the left-hand lane line. During normal driving and/or if normal/adaptive cruise is used a pull may not be noticed.
N23-2411822023-08-14. Service bulletin. (There may be future updates under this same release number.) Your vehicle keeps getting better. This software update includes the following if your vehicle is equipped: Refinements: Updates made to improve the Super Cruise driver assistance technology and the Adaptive Cruise Control functionality. Updates to improve the connectivity within Apple CarPlay & Android Auto. A variety of other minor software updates to make your driving and in-vehicle experience better. Better Never Stops™
PIT5865B2023-05-15. Service bulletin. This Preliminary information communicates an issue with adaptive cruise and lane keep assist inoperative due to an internal issue with the front view windshield camera. Dealers are to replace the camera.
PIT5865A2022-01-24. Service bulletin. This Preliminary information communicates an issue with adaptive cruise and lane keep assist inoperative due to an internal issue with the front view windshield camera. Dealers are to replace the camera.
PIT58652021-12-13. Service bulletin. This Preliminary information communicates an issue with adaptive cruise and lane keep assist inoperative due to an internal issue with the front view windshield camera. Dealers are to replace the camera.