TSB: CHEVROLET SIERRA 2500, SIERRA 3500, SILVERADO 2500, SILVERADO 3500 (2017–2019)

Bulletin N212346580-01 — March 16, 2022

Bulletin Details

Bulletin IDN212346580-01
ManufacturerCHEVROLET
ModelsSIERRA 2500, SIERRA 3500, SILVERADO 2500, SILVERADO 3500
Model Years2017–2019
Date IssuedMarch 16, 2022
Date Added to NHTSAMarch 16, 2022
ComponentFUEL SYSTEM, DIESEL
Vehicles Affected48 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

Customer Satisfaction Program - certain vehicles equipped with the Duramax diesel 6.6 liter engine and the optional engine-block heater cord, may have a condition in which the block heater cable function was disabled. Dealers will replace

Affected Vehicles

MakeModelYearComponent
GMC SIERRA 2500 2019 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
GMC SIERRA 2500 2019 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
GMC SIERRA 2500 2019 110000 ELECTRICAL SYSTEM
GMC SIERRA 2500 2019 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2019 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2019 110000 ELECTRICAL SYSTEM
GMC SIERRA 3500 2019 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
GMC SIERRA 3500 2019 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
CHEVROLET SILVERADO 2500 2019 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
CHEVROLET SILVERADO 2500 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2019 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2019 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
CHEVROLET SILVERADO 3500 2019 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2019 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 3500 2019 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
CHEVROLET SILVERADO 3500 2019 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
GMC SIERRA 2500 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2018 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
GMC SIERRA 2500 2018 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
GMC SIERRA 2500 2018 110000 ELECTRICAL SYSTEM
GMC SIERRA 3500 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2018 110000 ELECTRICAL SYSTEM
GMC SIERRA 3500 2018 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
GMC SIERRA 3500 2018 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
CHEVROLET SILVERADO 2500 2018 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
CHEVROLET SILVERADO 2500 2018 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
CHEVROLET SILVERADO 2500 2018 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2018 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2018 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 3500 2018 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
CHEVROLET SILVERADO 3500 2018 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
CHEVROLET SILVERADO 3500 2018 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 2500 2017 110000 ELECTRICAL SYSTEM
GMC SIERRA 2500 2017 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
GMC SIERRA 2500 2017 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
GMC SIERRA 2500 2017 080000 FUEL SYSTEM, DIESEL
GMC SIERRA 3500 2017 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
GMC SIERRA 3500 2017 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
GMC SIERRA 3500 2017 110000 ELECTRICAL SYSTEM
GMC SIERRA 3500 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 2500 2017 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
CHEVROLET SILVERADO 2500 2017 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
CHEVROLET SILVERADO 2500 2017 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2017 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 3500 2017 080000 FUEL SYSTEM, DIESEL
CHEVROLET SILVERADO 3500 2017 119000 ELECTRICAL SYSTEM:PROPULSION SYSTEM
CHEVROLET SILVERADO 3500 2017 353800 EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER

Related CHEVROLET Recalls

CampaignModelYearComponentSummary
SILVERADO 3500 2019 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...
SILVERADO 2500 2019 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...
SILVERADO 1500 2018 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...
SILVERADO 1500 2018 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...
SILVERADO 2500 2019 AIR BAGS General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, ...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CHEVROLET dealer. Bring this bulletin ID (N212346580-01) 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.