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Service bulletin PIT-4814

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 id10030211
Published by NHTSA2009-08-19
Manufacturer's numberPIT-4814
Manufacturer's date2009-03-01
NHTSA componentEXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:TAIL LIGHTS

NHTSA's summary

GMC/CHEVROLET: THE LEFT OR RIGHT REAR TAIL, STOP AND/OR TURN SIGNAL LAMPS ARE INTERMITTENTLY INOPERATIVE, OR THE TURN SIGNAL FLASHES FAST. *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, Tail lights, Turn signals

Vehicles listed
CHEVROLET SILVERADO2009
GMC SIERRA2009

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
07-08-42-006J2018-05-21. Service bulletin. This informational bulletin provides information for an available BCM calibrations that would restore bulb outages when using a second stage manufacturer
07-08-42-006K2018-05-21. Service bulletin. This informational bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
SB-07-08-42-006G2016-04-26. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-070842006C2009-10-23. Service bulletin. GENERAL MOTORS: BCM CALIBRATIONS AVAILABLE TO RESTORE BULB OUTAGE DETECTION ON VEHICLES PRODUCED BY A SECOND STATE MANUFACTURER, TURN SIGNALS FLASH FAST AFTER FACTORY BOX REMOVED (UPFITTER). MAY NEED TO HAVE BODY CONTROL MODULE (BCM) REAR TURN SIGNAL BULB OUTAGE DETECTION CAPABILITY CHANGED. *PE UPDATED 5/20/11. *PE
PIT-4696A2008-12-04. Service bulletin. GMC: BMC FAILURE AFTER WINDSHIELD WIPER OPERATION-KEYWORDS: AJAR DOOR DOME DRIVER DIMMER FLASHER FOG HAUL HEADLIGHT HEAD HIGH HAZARD INOP INOPERATIVE LAMP LIGHT LOCK LOW NOT ON OFF POWER PARK RADIO RAP REPEAT SIGNAL SHUT SPEED STAY SWITCH TURN TOW UNLOCK UNWANTED WINDOW. MAY BE DUE TO INTERNAL BCM DAMAGE. *PE