Cadillac CT6 2014–2020 — technical service bulletin

Bulletin 20NA038 · NHTSA communication 10172811 · issued Feb 26, 2020

Technical service bulletin

communication type

Engine

component

2014–2020

model years

vehicle entries

Official summary

This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.

Vehicles covered

2016 Cadillac CT6
2017 Cadillac CT6
2018 Cadillac CT6
2019 Cadillac CT6
2020 Cadillac CT6
2016 Cadillac CTS
2017 Cadillac CTS
2018 Cadillac CTS
2019 Cadillac CTS
2015 Cadillac Escalade
2016 Cadillac Escalade
2017 Cadillac Escalade
2018 Cadillac Escalade
2019 Cadillac Escalade
2020 Cadillac Escalade
2015 Cadillac Escalade Esv
2016 Cadillac Escalade Esv
2017 Cadillac Escalade Esv
2018 Cadillac Escalade Esv
2019 Cadillac Escalade Esv
2020 Cadillac Escalade Esv
2020 Chevrolet 3500
2016 Chevrolet Camaro
2017 Chevrolet Camaro
2018 Chevrolet Camaro
2019 Chevrolet Camaro
2020 Chevrolet Camaro
2014 Chevrolet Corvette
2015 Chevrolet Corvette
2016 Chevrolet Corvette
2017 Chevrolet Corvette
2018 Chevrolet Corvette
2019 Chevrolet Corvette
2020 Chevrolet Corvette
2018 Chevrolet Express
2019 Chevrolet Express
2020 Chevrolet Express
2017 Chevrolet Silverado
2014 Chevrolet Silverado 1500
2018 Chevrolet Silverado 1500
2019 Chevrolet Silverado 1500
2020 Chevrolet Silverado 1500
2015 Chevrolet Silverado 2500
2016 Chevrolet Silverado 2500
2018 Chevrolet Silverado 2500
2020 Chevrolet Silverado 2500
2015 Chevrolet Suburban
2016 Chevrolet Suburban
2017 Chevrolet Suburban
2018 Chevrolet Suburban
2019 Chevrolet Suburban
2020 Chevrolet Suburban
2015 Chevrolet Tahoe
2016 Chevrolet Tahoe
2017 Chevrolet Tahoe
2018 Chevrolet Tahoe
2019 Chevrolet Tahoe
2020 Chevrolet Tahoe
2018 GMC Savana
2019 GMC Savana

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.