Chevrolet Express 2016–2020 — technical service bulletin

Bulletin PIP5504F · NHTSA communication 10178367 · issued Jul 10, 2020

Technical service bulletin

communication type

Engine

component

2016–2020

model years

vehicle entries

Official summary

This Preliminary Information communication provides information and definitions to the technician about vehicles that have fishbite, chuggle, misfire, AFM disturbances or torque converter shudder/vibration concerns. Technician are advised to use PICO software to determine root cause of the concern. If torque converter shudder is confirmed technicians are referred to Torque Converter Diagnosis in SI.

Vehicles covered

2016 Chevrolet Express
2017 Chevrolet Express
2018 Chevrolet Express
2019 Chevrolet Express
2020 Chevrolet Express
2016 Chevrolet Silverado 1500
2017 Chevrolet Silverado 1500
2018 Chevrolet Silverado 1500
2019 Chevrolet Silverado 1500
2020 Chevrolet Silverado 1500
2016 Chevrolet Silverado 2500
2017 Chevrolet Silverado 2500
2018 Chevrolet Silverado 2500
2019 Chevrolet Silverado 2500
2020 Chevrolet Silverado 2500
2016 Chevrolet Silverado 3500
2017 Chevrolet Silverado 3500
2018 Chevrolet Silverado 3500
2019 Chevrolet Silverado 3500
2020 Chevrolet Silverado 3500
2016 Chevrolet Suburban
2017 Chevrolet Suburban
2018 Chevrolet Suburban
2019 Chevrolet Suburban
2020 Chevrolet Suburban
2016 Chevrolet Tahoe
2017 Chevrolet Tahoe
2018 Chevrolet Tahoe
2019 Chevrolet Tahoe
2020 Chevrolet Tahoe
2016 GMC Savana
2017 GMC Savana
2018 GMC Savana
2019 GMC Savana
2020 GMC Savana
2016 GMC Sierra 1500
2017 GMC Sierra 1500
2018 GMC Sierra 1500
2019 GMC Sierra 1500
2020 GMC Sierra 1500
2016 GMC Sierra 2500
2017 GMC Sierra 2500
2018 GMC Sierra 2500
2019 GMC Sierra 2500
2020 GMC Sierra 2500
2016 GMC Sierra 3500
2017 GMC Sierra 3500
2018 GMC Sierra 3500
2019 GMC Sierra 3500
2020 GMC Sierra 3500
2016 GMC Sierra Denali
2017 GMC Sierra Denali
2018 GMC Sierra Denali
2016 GMC Yukon
2017 GMC Yukon
2018 GMC Yukon
2019 GMC Yukon
2020 GMC Yukon
2016 GMC Yukon Denali
2017 GMC Yukon Denali

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.