Service bulletin PIT4543B

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)
Type	Service bulletin
NHTSA id	10112151
Published by NHTSA	2017-08-15
Manufacturer's number	PIT4543B
Manufacturer's date	2014-08-07
NHTSA component	EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING

NHTSA's summary

This Preliminary Information communication provides information to the technician about the operation of the ground illumination lamp. For the puddle lamps to operate they must be turned on using the Drivers Information Center buttons and it must be dark outside.

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

Lighting, Headlights

Vehicles listed
CADILLAC ESCALADE	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
CADILLAC ESCALADE ESV	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT	2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE	2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET SILVERADO	2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET SILVERADO 2500	2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 3500	2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO CLASSIC	2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
CHEVROLET TAHOE	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
GMC SIERRA	2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC SIERRA DENALI	2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
GMC YUKON DENALI	2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL	2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL	2007, 2008, 2009, 2010, 2011
GMC YUKON XL	2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)

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
PIT4817D	2023-12-26. Service bulletin. Intellibeam High Beam Control Testing.
PIT4817D	2023-11-20. Service bulletin. Intellibeam High Beam Control Testing.
PIT3219F	2019-06-10. Service bulletin. This Preliminary Information communicates to technicians that the Daytime Running Lamps (DRL's) or the auto headlamps will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49). These vehicles were built with different software that doesn't allow the DRL's or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL's) or auto headlamps.
PIT5412D	2019-06-10. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have either the truck or the snowplow's headlights are flickering or inoperative. There may be a diagnostic trouble code B2575 and or a B2699 set in the body control module. Technician will need to contact the snowplow manufacturer for additional information on their headlight changeover system. Technician is to refer to the latest version of the General Motors up-fitter integration bulletin 116 for additional information these circuits. Technician can find this information at http://www.gmupfitter.com/, under the "Technical Bulletin" Tab and then "Show all bulletins."
PIT3219E	2018-05-21. Service bulletin. This Preliminary Information communicates to techniciansthat the Daytime Running Lamps (DRL's) or the auto headlamps will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49). These vehicles were built with different software that doesn't allow the DRL's or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL's) or auto headlamps.
PIT5412C	2018-02-21. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have either the truck or the snowplow's headlights are flickering or inoperative. There may be a diagnostic trouble code B2575 and or a B2699 set in the body control module. Technician will need to contact the snowplow manufacturer for additional information on their headlight changeover system. Technician is to refer to the latest version of the General Motors up-fitter integration bulletin 116 for additional information these circuits. Technician can find this information at http://www.gmupfitter.com/, under the "Technical Bulletin" Tab and then "Show all bulletins."
02-08-42-001I	2017-08-31. 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
01-08-42-001K	2017-08-31. Service bulletin. This informational bulletin provides information on exterior lamp condinsation and replacement guidelines
PIT3098E	2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a lean to the left or right. Technician will need to measure fender wheel-opening heights, front and rear, to quantify vehicle lean. Fender wheel-opening heights are related to, but distinct from, trim height. The front wheel-opening height is known as P height, and the rear wheel-opening height is known as R height. Adjust and heights that are out of specification. After all adjustments are done, perform a front-end alignment and check headlight aim.
10-08-42-001E	2017-08-15. Service bulletin. This technical bulletin provides repair information for low beam headlamp bulb diagnosis/replacement to correct a customer concern that the low beam headlamp is inoperative.