TSB: BUICK AURA HYBRID, BOLT EV, CT6, ELR, ESCALADE HYBRID, LACROSSE, MALIBU, MALIBU CLASSIC, REGAL, SIERRA 1500, SIERRA 1500 HD, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 3500, SPARK EV, TAHOE HYBRID, VOLT, VUE HYBRID, YUKON HYBRID (2004–2019)

Bulletin PIT4610F — April 15, 2019

Bulletin Details

Bulletin IDPIT4610F
ManufacturerBUICK
ModelsAURA HYBRID, BOLT EV, CT6, ELR, ESCALADE HYBRID, LACROSSE, MALIBU, MALIBU CLASSIC, REGAL, SIERRA 1500, SIERRA 1500 HD, SIERRA DENALI, SILVERADO, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SILVERADO 3500, SPARK EV, TAHOE HYBRID, VOLT, VUE HYBRID, YUKON HYBRID
Model Years2004–2019
Date IssuedApril 15, 2019
Date Added to NHTSAJune 3, 2019
ComponentELECTRICAL SYSTEM
Vehicles Affected93 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

This Preliminary Information communication provides information to the technician that First Responder Guides for General Motors vehicles can be accessed via the web at http://www.gmstc.com. or http://www.nfpa.org/

Affected Vehicles

MakeModelYearComponent
CHEVROLET BOLT EV 2019 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2019 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2019 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2019 110000 ELECTRICAL SYSTEM
CHEVROLET BOLT EV 2018 110000 ELECTRICAL SYSTEM
CADILLAC CT6 2018 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2018 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2018 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2018 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2018 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2018 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2018 110000 ELECTRICAL SYSTEM
CHEVROLET BOLT EV 2017 110000 ELECTRICAL SYSTEM
CADILLAC CT6 2017 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2017 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2017 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2017 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2017 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2017 110000 ELECTRICAL SYSTEM
CADILLAC ELR 2016 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2016 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2016 110000 ELECTRICAL SYSTEM
BUICK REGAL 2016 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2016 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2016 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2016 110000 ELECTRICAL SYSTEM
CHEVROLET SPARK EV 2016 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2016 110000 ELECTRICAL SYSTEM
CADILLAC ELR 2015 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2015 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2015 110000 ELECTRICAL SYSTEM
BUICK REGAL 2015 110000 ELECTRICAL SYSTEM
CHEVROLET SPARK EV 2015 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2015 110000 ELECTRICAL SYSTEM
CADILLAC ELR 2014 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2014 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2014 110000 ELECTRICAL SYSTEM
BUICK REGAL 2014 110000 ELECTRICAL SYSTEM
CHEVROLET SPARK EV 2014 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2014 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE HYBRID 2013 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2013 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2013 110000 ELECTRICAL SYSTEM
BUICK REGAL 2013 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2013 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2013 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 3500 2013 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE HYBRID 2013 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2013 110000 ELECTRICAL SYSTEM
GMC YUKON HYBRID 2013 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE HYBRID 2012 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2012 110000 ELECTRICAL SYSTEM
BUICK REGAL 2012 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2012 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2012 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2012 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE HYBRID 2012 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2012 110000 ELECTRICAL SYSTEM
GMC YUKON HYBRID 2012 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE HYBRID 2011 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2011 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2011 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE HYBRID 2011 110000 ELECTRICAL SYSTEM
CHEVROLET VOLT 2011 110000 ELECTRICAL SYSTEM
GMC YUKON HYBRID 2011 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE HYBRID 2010 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2010 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2010 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE HYBRID 2010 110000 ELECTRICAL SYSTEM
GMC YUKON HYBRID 2010 110000 ELECTRICAL SYSTEM
SATURN AURA HYBRID 2009 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE HYBRID 2009 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2009 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2009 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2009 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE HYBRID 2009 110000 ELECTRICAL SYSTEM
SATURN VUE HYBRID 2009 110000 ELECTRICAL SYSTEM
GMC YUKON HYBRID 2009 110000 ELECTRICAL SYSTEM
SATURN AURA HYBRID 2008 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE HYBRID 2008 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2008 110000 ELECTRICAL SYSTEM
SATURN VUE HYBRID 2008 110000 ELECTRICAL SYSTEM
SATURN AURA HYBRID 2007 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU CLASSIC 2007 110000 ELECTRICAL SYSTEM
GMC SIERRA 1500 2007 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2007 110000 ELECTRICAL SYSTEM
SATURN VUE HYBRID 2007 110000 ELECTRICAL SYSTEM
GMC SIERRA 1500 2006 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2006 110000 ELECTRICAL SYSTEM
GMC SIERRA 1500 HD 2005 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 HD 2005 110000 ELECTRICAL SYSTEM
GMC SIERRA 1500 HD 2004 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 HD 2004 110000 ELECTRICAL SYSTEM

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized BUICK dealer. Bring this bulletin ID (PIT4610F) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.