Cadillac Escalade 2019–2022 — technical service bulletin

Bulletin 20NA090 · NHTSA communication 10214199 · issued Jan 24, 2022

Technical service bulletin

communication type

Engine and Engine Cooling

component

2019–2022

model years

vehicle entries

Official summary

This informational bulletin provides a way for the technician to identify if the ECM has been modified.

Vehicles covered

2020 Cadillac Escalade
2022 Cadillac Escalade
2020 Cadillac Escalade Esv
2021 Cadillac Escalade Esv
2022 Cadillac Escalade Esv
2021 Cadillac Escalade NA
2021 Chevrolet 3500
2022 Chevrolet 3500
2021 Chevrolet 5500HD
2022 Chevrolet 5500HD
2022 Chevrolet 6500HD
2020 Chevrolet Silverado 1500
2021 Chevrolet Silverado 1500
2022 Chevrolet Silverado 1500
2019 Chevrolet Silverado 2500
2020 Chevrolet Silverado 2500
2021 Chevrolet Silverado 2500
2022 Chevrolet Silverado 2500
2019 Chevrolet Silverado 4500
2020 Chevrolet Silverado 4500
2021 Chevrolet Silverado 4500
2022 Chevrolet Silverado 4500
2021 Chevrolet Silverado 6500
2020 Chevrolet Suburban
2021 Chevrolet Suburban
2022 Chevrolet Suburban
2020 Chevrolet Tahoe
2021 Chevrolet Tahoe
2022 Chevrolet Tahoe
2021 GMC Sierra 1500
2022 GMC Sierra 1500
2019 GMC Sierra 2500
2020 GMC Sierra 2500
2021 GMC Sierra 2500
2021 GMC Sierra 3500
2020 GMC Yukon
2021 GMC Yukon
2022 GMC Yukon
2020 GMC Yukon XL
2021 GMC Yukon XL
2022 GMC Yukon XL

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.