Bulletin Information

Bulletin Title: #21-NA-281 - Diagnostic Tip - Transmission Neutral Service Mode - (Jan 23, 2023)
Bulletin Type: Information
Applies To: Automatic Transmission / General Information

Applicable Vehicles

2023 GMC Yukon XL - 4WD
2023 GMC Yukon XL - 2WD
2023 GMC Yukon - 4WD
2023 GMC Yukon - 2WD
2023 Chevrolet Tahoe - 4WD
2023 Chevrolet Tahoe - 2WD
2023 Chevrolet Suburban - 4WD
2023 Chevrolet Suburban - 2WD
2023 Chevrolet Silverado 1500 - 4WD
2023 Chevrolet Silverado 1500 - 2WD
2023 Cadillac Escalade ESV - 4WD
2023 Cadillac Escalade ESV - 2WD
2023 Cadillac Escalade - 4WD
2023 Cadillac Escalade - 2WD
2023 Cadillac CT5
2023 Cadillac CT4
2022 GMC Yukon XL - 4WD
2022 GMC Yukon XL - 2WD
2022 GMC Yukon - 4WD
2022 GMC Yukon - 2WD
2022 GMC Sierra 1500 - 4WD New (RPO J22, VIN Digit 5 = U)
2022 GMC Sierra 1500 - 4WD Limited (RPO J21, VIN Digit 5 = 9)
2022 GMC Sierra 1500 - 2WD New (RPO J22, VIN Digit 5 = H)
2022 GMC Sierra 1500 - 2WD Limited (RPO J21, VIN Digit 5 = 8)
2022 Chevrolet Tahoe - 4WD
2022 Chevrolet Tahoe - 2WD
2022 Chevrolet Suburban - 4WD
2022 Chevrolet Suburban - 2WD
2022 Chevrolet Silverado 1500 - 4WD New (RPO J22, VIN Digit 5 = D)
2022 Chevrolet Silverado 1500 - 4WD LTD (RPO J21, VIN Digit 5 = Y)
2022 Chevrolet Silverado 1500 - 2WD New (RPO J22, VIN Digit 5 = A)
2022 Chevrolet Silverado 1500 - 2WD LTD (RPO J21, VIN Digit 5 = W)
2022 Cadillac Escalade ESV - 4WD
2022 Cadillac Escalade ESV - 2WD
2022 Cadillac Escalade - 4WD
2022 Cadillac Escalade - 2WD
2022 Cadillac CT5
2022 Cadillac CT4
2021 GMC Yukon XL - 4WD
2021 GMC Yukon XL - 2WD
2021 GMC Yukon - 4WD
2021 GMC Yukon - 2WD
2021 GMC Sierra 1500 - 4WD
2021 GMC Sierra 1500 - 2WD
2021 Chevrolet Tahoe - 4WD
2021 Chevrolet Tahoe - 2WD
2021 Chevrolet Suburban - 4WD
2021 Chevrolet Suburban - 2WD
2021 Cadillac Escalade ESV - 4WD
2021 Cadillac Escalade ESV - 2WD
2021 Cadillac Escalade - 4WD
2021 Cadillac Escalade - 2WD
2021 Cadillac CT5
2021 Cadillac CT4

#21-NA-281 - Diagnostic Tip - Transmission Neutral Service Mode - (Jan 23, 2023)

Subject:
Diagnostic Tip – Transmission Neutral Service Mode

This bulletin replaces PIT5764B. Please discard PIT5764B.


Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

(Automatic)

from

to

from

to

Cadillac

CT4

2021

2023

MQA, MQC, MHO, MHU...

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Document Tags

Document Title: #21-NA-281 - Diagnostic Tip - Transmission Neutral Service Mode - (Jan 23, 2023)

transmission

neutral

service

model

engine

silverado

sierra

vehicle

information

system

pressure

park

example

manual

release

tool

placed

pulled

fuel

pump

relief

manual park

park release

release pulled

fuel pressure

neutral service mode

manual park release

park release tool

the manual park

park release pulled

release pulled vehicle

using fuel pressure

fuel pressure relief