TSB 23-NA-001 — Buick, Cadillac, Chevrolet, GMC and Saturn Service bulletin
23-NA-001 is a service bulletin on file with NHTSA for 20 Buick, Cadillac, Chevrolet, GMC and Saturn models, 2002–2014 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 23-NA-001 names
| Vehicle | Model years |
|---|---|
| Buick LaCrosse | 2011 |
| Cadillac CTS | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
| Cadillac SRX | 2011, 2012 |
| Chevrolet Aveo | 2011 |
| Chevrolet Camaro | 2011, 2012 |
| Chevrolet Colorado | 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
| Chevrolet Corvette | 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
| Chevrolet Cruze | 2011, 2012, 2013, 2014 |
| Chevrolet Equinox | 2010, 2011, 2012 |
| Chevrolet Impala | 2011, 2012 |
| Chevrolet Malibu | 2011, 2012 |
| Chevrolet Silverado 1500 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
| Chevrolet Silverado 2500 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
| Chevrolet Sonic | 2014 |
| Chevrolet Suburban | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
| Chevrolet Tahoe | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
| GMC Sierra 1500 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
| GMC Terrain | 2011, 2012 |
| GMC Yukon | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
| Saturn Vue | 2002, 2003, 2004, 2005, 2006, 2007 |
Every document filed under 23-NA-001
| Document ID | Filed | Type |
|---|---|---|
| 23-NA-001 | March 28, 2025 | Service bulletin |
What 23-NA-001 covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 23-NA-001?
23-NA-001 is a service bulletin filed with NHTSA by Buick, Cadillac, Chevrolet, GMC and Saturn, covering 20 Buick, Cadillac, Chevrolet, GMC and Saturn models across the 2002–2014 model years. NHTSA's summary reads: This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
Which vehicles does 23-NA-001 cover?
NHTSA's file names Buick LaCrosse (2011); Cadillac CTS (2003–2012); Cadillac SRX (2011–2012); Chevrolet Aveo (2011); Chevrolet Camaro (2011–2012); Chevrolet Colorado (2004–2012); Chevrolet Corvette (2007–2013); Chevrolet Cruze (2011–2014); Chevrolet Equinox (2010–2012); Chevrolet Impala (2011–2012), and 10 more vehicles listed on this page. A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB 23-NA-001 a recall, and is the repair free?
No. 23-NA-001 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 23-NA-001?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 23-NA-001, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 23-NA-001. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.