Bulletin Information

Bulletin Title: #20-NA-196 - OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes - (Aug 18, 2021)
Bulletin Type: Technical
Applies To: General Information / Entertainment / Programming and Setup / Driver Monitoring / Driver Assistance Systems

Applicable Vehicles

2021 GMC Truck Yukon XL - 4WD
2021 GMC Truck Yukon XL - 2WD
2021 GMC Truck Yukon - 4WD
2021 GMC Truck Yukon - 2WD
2021 GMC Truck Terrain
2021 GMC Truck Sierra 1500 - 4WD
2021 GMC Truck Sierra 1500 - 2WD
2021 GMC Truck Canyon Pickup - 4WD
2021 GMC Truck Canyon Pickup - 2WD
2021 Chevrolet Trax
2021 Chevrolet Trailblazer (VIN M)
2021 Chevrolet Tahoe - 4WD
2021 Chevrolet Tahoe - 2WD
2021 Chevrolet Suburban - 4WD
2021 Chevrolet Suburban - 2WD
2021 Chevrolet Spark
2021 Chevrolet Silverado 1500 - 4WD
2021 Chevrolet Silverado 1500 - 2WD
2021 Chevrolet Onix
2021 Chevrolet Malibu
2021 Chevrolet Equinox (US, Canada, Mexico)
2021 Chevrolet Equinox (Central America, Caribbean)
2021 Chevrolet Colorado Pickup - 4WD (VIN T)
2021 Chevrolet Colorado Pickup - 2WD (VIN S)
2021 Chevrolet Camaro
2021 Chevrolet Blazer
2021 Cadillac XT6
2021 Cadillac XT5
2021 Cadillac XT4
2021 Cadillac Escalade ESV - 4WD
2021 Cadillac Escalade ESV - 2WD
2021 Cadillac Escalade - 4WD
2021 Cadillac Escalade - 2WD
2021 Cadillac CT5
2021 Cadillac CT4
2021 Buick Encore GX
2021 Buick Encore
2020 GMC Truck Terrain
2020 GMC Truck Sierra 1500 - 4WD
2020 GMC Truck Sierra 1500 - 2WD
2020 GMC Truck Canyon Pickup - 4WD
2020 GMC Truck Canyon Pickup - 2WD
2020 GMC Truck Acadia
2020 Chevrolet Trax
2020 Chevrolet Traverse - FWD
2020 Chevrolet Traverse - AWD
2020 Chevrolet Spark
2020 Chevrolet Silverado 1500 - 4WD
2020 Chevrolet Silverado 1500 - 2WD
2020 Chevrolet Malibu
2020 Chevrolet Equinox
2020 Chevrolet Corvette
2020 Chevrolet Colorado Pickup - 4WD (VIN T)
2020 Chevrolet Colorado Pickup - 2WD (VIN S)
2020 Chevrolet Camaro
2020 Chevrolet Bolt EV
2020 Chevrolet Blazer
2020 Cadillac XT6
2020 Cadillac XT5
2020 Cadillac XT4
2020 Cadillac CT6
2020 Cadillac CT5
2020 Cadillac CT4
2020 Buick Encore GX
2020 Buick Enclave - FWD
2020 Buick Enclave - AWD
2019 GMC Truck Terrain
2019 GMC Truck Sierra Limited - 4WD
2019 GMC Truck Sierra Limited - 2WD
2019 GMC Truck Sierra 1500 (New Model) - 4WD
2019 GMC Truck Sierra 1500 (New Model) - 2WD
2019 GMC Truck Canyon Pickup - 4WD
2019 GMC Truck Canyon Pickup - 2WD
2019 Chevrolet Trax
2019 Chevrolet Traverse - FWD
2019 Chevrolet Traverse - AWD
2019 Chevrolet Spark (VIN C)
2019 Chevrolet Silverado LD - 4WD
2019 Chevrolet Silverado LD - 2WD
2019 Chevrolet Silverado 1500 (New Model) - 4WD
2019 Chevrolet Silverado 1500 (New Model) - 2WD
2019 Chevrolet Malibu
2019 Chevrolet Equinox
2019 Chevrolet Cruze (Gen II - VIN B)
2019 Chevrolet Colorado Pickup - 4WD (VIN T)
2019 Chevrolet Colorado Pickup - 2WD (VIN S)
2019 Chevrolet Camaro
2019 Chevrolet Blazer
2019 Cadillac XT4
2019 Cadillac CT6
2019 Buick Enclave - FWD
2019 Buick Enclave - AWD

#20-NA-196 - OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes - (Aug 18, 2021)

Subject:
OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes
...

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Buick

Enclave

2019

2020

Encore GX (VIN M)

2020

2021

Encore

2021

Cadillac

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Document Tags

Document Title: #20-NA-196 - OnStar Over the Air Update for TTY / TDD Operation and Continuous Improvement Changes - (Aug 18, 2021)

onstar

over

update

model

year

silverado

sierra

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communication

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september

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onstar module

service procedure

update installed

interface module

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remote ignition block

replace onstar module

stop bulletin apply

diagnostic information related

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update installed september

vehicle communication interface

communication interface module

time communication interface

interface module replacement