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Service bulletin 11273A

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 id10246587
Published by NHTSA2023-12-11
Manufacturer's number11273A
Manufacturer's date2013-06-01
NHTSA componentVEHICLE SPEED CONTROL:THROTTLE:THROTTLE POSITION SENSOR (TPS)

NHTSA's summary

Special Coverage Adjustment ? Throttle Position Sensor Replacement

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

Throttle and cruise control

Vehicles listed
CADILLAC ESCALADE2008, 2009, 2010, 2011
CADILLAC ESCALADE ESV2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2008, 2009, 2010, 2011
CHEVROLET COLORADO2009, 2010, 2011
CHEVROLET EXPRESS2008, 2009, 2010, 2011
CHEVROLET SILVERADO 15002008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2008, 2009, 2010, 2011
CHEVROLET TAHOE2008, 2009, 2010, 2011
CHEVROLET TRAILBLAZER2008, 2009
GMC CANYON2009, 2010, 2011
GMC ENVOY2008, 2009
GMC SAVANA2008, 2009, 2010, 2011
GMC SIERRA 15002008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2008, 2009, 2010, 2011
GMC YUKON XL2008, 2009, 2010, 2011
HUMMER H22008, 2009
HUMMER H32008, 2009, 2010

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
PIT51842023-12-26. Service bulletin. Various Concerns Related To The IP Backlighting Cruise Control Steering Wheel Controls Horn.
PIT51792023-12-26. Service bulletin. Cruise Control Inoperative.
PIT4844E2023-12-26. Service bulletin. Adding Cruise Control (RPO K34)
PIT4508C2023-12-26. Service bulletin. Cruise Control Inoperative.
PIT51842023-12-11. Service bulletin. Various Concerns Related To The IP Backlighting Cruise Control Steering Wheel Controls Horn.
PIT51792023-12-11. Service bulletin. Cruise Control Inoperative.
PIT4844E2023-11-20. Service bulletin. Adding Cruise Control (RPO K34)
PIT4508C2023-11-20. Service bulletin. Cruise Control Inoperative.
PIT5082B2022-12-12. Service bulletin. This Preliminary Information communication provides information to the technician about vehicle HVAC system does not always respond to requests for changes in air delivery or temperature from the HVAC controls. The technician may find that the HVAC control module will communicate with the scan tool but the HVAC door data actual counts will read 0 counts. The dealer is directed to ensure there is 12V on circuit 300 at HVAC control module before replacing module.
PIT4844J2020-04-13. Service bulletin. This Preliminary Information communication provides information to the technician with the installation of Cruise Control on a vehicle which did not come equipped with the option. Technician will need to contact the Techline Customer Support Center to determine if a calibration is available for the vehicle. If they are able to provide a calibration for the vehicle then order steering wheel with cruise control buttons, steering wheel sir coil, and steering column wiring harness.