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Service bulletin SB-09-08-42-006

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 id10032333
Published by NHTSA2010-03-06
Manufacturer's numberSB-09-08-42-006
Manufacturer's date2009-07-01
NHTSA componentEXTERIOR LIGHTING:BRAKE LIGHTS

NHTSA's summary

GMC/CHEVROLET: TRAILER AND VEHICLE BRAKE LIGHTS DO NOT ILLUMINATE WHEN INTEGRATED TRAILER BRAKE CONTROL SYSTEM (ITBC) MANUAL TRAILER BRAKE APPLY LEVER IS USED (REPROGRAM BODY CONTROL MODULE (BCM). *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Lighting, Brake lights

Vehicles listed
CHEVROLET AVALANCHE2009
CHEVROLET SUBURBAN2009
CHEVROLET TAHOE2009
GMC YUKON2009
GMC YUKON XL2009

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
02-08-42-001I2017-08-31. Service bulletin. This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not