2015 - 2019 Corvette: Service Bulletin: #18-NA-285: Information on Slight Movement in Park at Ignition On and Vehicle Start Up and/or During a Remote Vehicle Start Event - (Jan 22, 2021)
Estimated Reading Time: 2 Minutes#18-NA-285: Information on Slight Movement in Park at Ignition On and Vehicle Start Up and/or During a Remote Vehicle Start Event - (Jan 22, 2021)
| Subject: | Information on Slight Movement in Park at Ignition On and Vehicle Start Up and/or During a Remote Vehicle Start Event |
This bulletin replaces PIP5293A. Please discard PIP5293A.
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Brand: |
Model: |
Model Year: |
VIN: |
Engine: |
Transmission: (8 Speed Automatic) | ||
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from |
to |
from |
to | ||||
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Cadillac |
ATS |
2016 |
2019 |
— |
— |
— |
M5U, M5N |
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CTS |
|||||||
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CT4 |
2020 |
2021 |
M5N |
||||
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CT6 |
2016 |
2018 |
M5N, M5X |
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Escalade Models |
2015 |
2017 |
M5U |
||||
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Chevrolet |
Camaro |
2016 |
2021 |
M5T, M5U |
|||
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Colorado |
2017 |
2021 |
M5T |
||||
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Corvette |
2015 |
2019 |
M5U |
||||
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Express |
2017 |
2021 |
M5U MQD |
||||
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Silverado Models |
2015 |
2018 |
M5U, M5X |
||||
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Silverado 1500 (New Model) |
2019 |
2019 |
M5U M5X MQE |
||||
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Silverado 1500 |
2020 |
2021 |
|||||
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GMC |
Canyon |
2017 |
2021 |
M5T |
|||
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Savana |
2017 |
2021 |
M5U MQD |
||||
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Sierra Models |
2015 |
2018 |
M5U, M5X |
||||
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Sierra 1500 (New Model) |
2019 |
2019 |
M5U M5X MQE |
||||
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Sierra 1500 |
2020 |
2021 |
|||||
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Yukon Models |
2015 |
2017 |
M5U |
||||
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Involved Region or Country |
North America, Argentina, Brazil, Chile, Guatemala, Peru, Europe, Israel, Middle East, China, Japan, Philippines, Thailand, Cadillac Korea, GM Korea Company |
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Condition |
Some customers may comment that the vehicle may rock or move slightly forward or rearward while in Park at start up and/or when using the remote vehicle start function.
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Cause |
This condition may be caused by the application of the 1-2-7-8 Reverse Clutch and the 1-2-3-4-5 Reverse Clutch in addition to residual transmission fluid in the other clutch packs creating a partial apply on start up.
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Correction |
This condition is normal and no repairs should be attempted. This can be verified by comparing with another identically built vehicle under the same conditions. |
Parts Information
No parts are required for this repair.
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Version |
2 |
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Modified |
Released September 21, 2018 January 22, 2021 – Added the 2020-2021 Model Years, additional Models and updated the Involved Region or Country section. |