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Service bulletin PI1533A

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 id10137250
Published by NHTSA2018-05-21
Manufacturer's numberPI1533A
Manufacturer's date2015-11-23
NHTSA componentEQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

NHTSA's summary

This preliminary informational bulletin provides repair information to correct a customer concern of poor radio hands-free voice recognition performance or sound quality after OnStar upgrade.

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

Equipment and accessories

Vehicles listed
BUICK ENCLAVE2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
BUICK LACROSSE2008, 2009, 2010
BUICK VERANO2012
CADILLAC CTS2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CADILLAC DTS2006, 2007, 2008, 2009, 2010, 2011
CADILLAC ESCALADE2007, 2008, 2009, 2010, 2011, 2012, 2013
CADILLAC ESCALADE ESV2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC SRX2007, 2008, 2009
CHEVROLET AVALANCHE2007, 2008, 2009, 2010, 2011
CHEVROLET SILVERADO 15002007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2007, 2008, 2009, 2010, 2011
CHEVROLET TAHOE2007, 2008, 2009
CHEVROLET TAHOE2011
CHEVROLET TRAVERSE2009, 2010, 2011
GMC ACADIA2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
GMC SIERRA 25002007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC YUKON DENALI2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2007, 2008, 2009, 2010, 2011
GMC YUKON XL2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
SATURN OUTLOOK2007, 2008, 2009, 2010

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
18V2670002018-04-26. EQUIPMENT
13V5440002015-10-30. EQUIPMENT:OTHER:LABELS
10V4140002010-09-13. EQUIPMENT
20101892010-06-07. Accessories
09V4800002009-12-17. EQUIPMENT:OTHER:LABELS
09V4560002009-11-19. EQUIPMENT:APPLIANCE:AIR CONDITIONER
09V3250002009-08-03. EQUIPMENT ADAPTIVE/MOBILITY

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
PI0572B2024-05-06. Service bulletin. Information on COAX Repair Kit Availability.
PI0488C2024-05-06. Service bulletin. Diagnostic Information for Transmission.
PI0731A2024-04-29. Service bulletin. Spare Tire Jack Storage Compartment Door Difficult to Latch or Falls Open Due to Inability to Latch.
PI0718B2024-04-29. Service bulletin. Audio System Speaker Rattle, Buzz Noise, Poor Sound
PI0693C2024-04-29. Service bulletin. Unable to Access MP3 Files on CD, Bluetooth Connectivity, No Audio After a Bluetooth CALL.
PI0689B2024-04-29. Service bulletin. Tool or Utility Box Sagging, Mis-aligned.
PI0688F2024-04-29. Service bulletin. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
PI0688E2024-04-29. Service bulletin. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
PI0688D2024-04-29. Service bulletin. Poor Voice Quality During Bluetooth Call or OnStar® Personal Call.
PI0663F2024-04-29. Service bulletin. Factory Settings Option Inoperable, Radio Display Information May Not Match.