TSB: CHEVROLET EXPRESS, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500 (2010–2020)

Bulletin PIP4912G — June 26, 2020

Bulletin Details

Bulletin IDPIP4912G
ManufacturerCHEVROLET
ModelsEXPRESS, SAVANA, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500
Model Years2010–2020
Date IssuedJune 26, 2020
Date Added to NHTSAAugust 10, 2020
ComponentENGINE AND ENGINE COOLING
Vehicles Affected34 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 on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle

Affected Vehicles

MakeModelYearComponent
GMC SIERRA 2500 2020 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2020 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2019 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2019 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2018 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2018 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2017 060000 ENGINE AND ENGINE COOLING
CHEVROLET EXPRESS 2016 060000 ENGINE AND ENGINE COOLING
GMC SAVANA 2016 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2016 060000 ENGINE AND ENGINE COOLING
CHEVROLET EXPRESS 2015 060000 ENGINE AND ENGINE COOLING
GMC SAVANA 2015 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 2500 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 2500 2015 060000 ENGINE AND ENGINE COOLING
CHEVROLET EXPRESS 2014 060000 ENGINE AND ENGINE COOLING
GMC SAVANA 2014 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2014 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2014 060000 ENGINE AND ENGINE COOLING
CHEVROLET EXPRESS 2013 060000 ENGINE AND ENGINE COOLING
GMC SAVANA 2013 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2013 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2013 060000 ENGINE AND ENGINE COOLING
CHEVROLET EXPRESS 2012 060000 ENGINE AND ENGINE COOLING
GMC SAVANA 2012 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 1500 2012 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2012 060000 ENGINE AND ENGINE COOLING
CHEVROLET EXPRESS 2011 060000 ENGINE AND ENGINE COOLING
GMC SAVANA 2011 060000 ENGINE AND ENGINE COOLING
GMC SIERRA 3500 2011 060000 ENGINE AND ENGINE COOLING
CHEVROLET SILVERADO 1500 2011 060000 ENGINE AND ENGINE COOLING
CHEVROLET EXPRESS 2010 060000 ENGINE AND ENGINE COOLING
GMC SAVANA 2010 060000 ENGINE AND ENGINE COOLING

Related CHEVROLET Recalls

CampaignModelYearComponentSummary
MALIBU 2025 BACK OVER PREVENTION: SENSING SYSTEM:... General Motors, LLC (GM) is recalling certain 2023-2025 Chevrolet Malibu vehi...
MALIBU 2024 BACK OVER PREVENTION: SENSING SYSTEM:... General Motors, LLC (GM) is recalling certain 2023-2025 Chevrolet Malibu vehi...
MALIBU 2023 BACK OVER PREVENTION: SENSING SYSTEM:... General Motors, LLC (GM) is recalling certain 2023-2025 Chevrolet Malibu vehi...
CORVETTE COUPE 2026 EXTERIOR LIGHTING:LIGHTING CONTROL MO... General Motors, LLC (GM) is recalling certain 2026 Chevrolet Corvette ZR1X Co...
CORVETTE COUPE 2026 EXTERIOR LIGHTING:TURN SIGNAL General Motors, LLC (GM) is recalling certain 2026 Chevrolet Corvette ZR1X Co...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized CHEVROLET dealer. Bring this bulletin ID (PIP4912G) 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.