Cadillac CTS 2019–2021 — technical service bulletin
Bulletin 19NA218 · NHTSA communication 10186073 · issued Dec 16, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2021
model years
34
vehicle entries
Official summary
This technical bulletin provides a service procedure to correct a condition of Ticking Noise from the Engine.
Vehicles covered
- 2019 Cadillac CTS
- 2019 Cadillac Escalade
- 2020 Cadillac Escalade
- 2019 Cadillac Escalade Esv
- 2020 Cadillac Escalade Esv
- 2021 Cadillac Escalade Esv
- 2021 Cadillac Escalade NA
- 2019 Chevrolet Camaro
- 2020 Chevrolet Camaro
- 2021 Chevrolet Camaro
- 2019 Chevrolet Corvette
- 2020 Chevrolet Corvette
- 2021 Chevrolet Corvette
- 2019 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 2500
- 2019 Chevrolet Silverado 4500
- 2019 Chevrolet Suburban
- 2020 Chevrolet Suburban
- 2021 Chevrolet Suburban
- 2019 Chevrolet Tahoe
- 2020 Chevrolet Tahoe
- 2021 Chevrolet Tahoe
- 2019 GMC Sierra 1500
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2019 GMC Sierra Denali
- 2019 GMC Yukon
- 2020 GMC Yukon
- 2021 GMC Yukon
- 2019 GMC Yukon XL
- 2020 GMC Yukon XL
- 2021 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.