Cadillac CT4 2020–2021 — technical service bulletin
Bulletin PIT5799A · NHTSA communication 10185745 · issued Dec 18, 2020
Technical service bulletin
communication type
Equipment
component
2020–2021
model years
20
vehicle entries
Official summary
This Preliminary information communicates a cocnern where a flashing spot can intermittently show up on the radio display while in reverse. The PI advises that engineering is investigating the concern.
Vehicles covered
- 2021 Cadillac CT4
- 2020 Cadillac CT5
- 2021 Cadillac CT5
- 2020 Cadillac Escalade
- 2020 Cadillac Escalade Esv
- 2021 Cadillac Escalade Esv
- 2021 Cadillac Escalade NA
- 2020 Chevrolet Bolt EV
- 2020 Chevrolet Corvette
- 2021 Chevrolet Corvette
- 2021 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 2500
- 2020 Chevrolet Suburban
- 2021 Chevrolet Suburban
- 2020 Chevrolet Tahoe
- 2021 Chevrolet Tahoe
- 2021 GMC Sierra 1500
- 2020 GMC Sierra 2500
- 2020 GMC Yukon
- 2021 GMC Yukon
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.