NHTSA ID Number: 10168176
Manufacturer Communication Number: 16NA361
Summary
This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed.
100 Affected Products
Vehicles
CADILLAC | ATS | 2016-2019 |
| CADILLAC | CT4 | 2020 |
| CADILLAC | CT6 | 2016-2020 |
| CADILLAC | CTS | 2016-2019 |
| CADILLAC | ESCALADE | 2015-2018 |
| CADILLAC | ESCALADE ESV | 2015-2018 |
| CHEVROLET | CAMARO | 2016-2020 |
| CHEVROLET | COLORADO | 2017-2020 |
| CHEVROLET | CORVETTE | 2015-2020 |
| CHEVROLET | EXPRESS | 2017-2020 |
| CHEVROLET | SILVERADO | 2017 |
| CHEVROLET | SILVERADO 1500 | 2015-2020 |
| CHEVROLET | SILVERADO 2500 | 2015-2020 |
| CHEVROLET | SILVERADO 3500 | 2015-2020 |
| CHEVROLET | SILVERADO 4500HD | 2019-2020 |
| CHEVROLET | SILVERADO 5500HD | 2019-2020 |
| CHEVROLET | SILVERADO 6500HD | 2019-2020 |
| GMC | CANYON | 2017-2019 |
| GMC | SAVANA | 2017-2019 |
| GMC | SIERRA | 2017 |
| GMC | SIERRA 1500 | 2015-2020 |
| GMC | SIERRA 2500 | 2015-2019 |
| GMC | SIERRA 3500 | 2015-2019 |
| GMC | SIERRA DENALI | 2015-2019 |
| GMC | YUKON | 2015-2017 |
| GMC | YUKON XL | 2015-2017 |
SEOCONTENT-START
Date:October, 2019
Bulletin No.: 16-NA-361
Service Bulletin
INFORMATION
Subject: Information on Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | |||
| from | to | from | to | |||||
| Cadillac |
ATS | 2016 | 2019 | Automatic 8L45 (M5N) 8L90 (M5X, MQE) |
||||
| CTS Models | ||||||||
| CT6 | 2016 | 2020 | ||||||
| CT4 | 2020 | 2020 | ||||||
| Escalade Models | 2015 | 2017 | Automatic 8L90 (M5U, MQE) | |||||
| Chevrolet |
Camaro | 2016 | 2020 | Automatic 8L45
(M5T) 8L90 (M5U, M5X, MQE) |
||||
| Colorado (VIN S, T) | 2017 | 2020 | ||||||
| Corvette | 2015 | 2019 | ||||||
| Express | 2017 | 2020 | ||||||
| Silverado | 2015 | 2018 | ||||||
| Silverado LD | 2019 | 2019 | ||||||
| Silverado
1500 (New Model) |
2019 | 2020 | ||||||
| GMC | Canyon | 2017 | 2020 | Automatic 8L45
(M5T) 8L90 (M5U, M5X, MQE) |
||||
| Savana | 2020 | |||||||
| Sierra | 2015 | 2018 | ||||||
| Sierra Limited | 2019 | 2019 | ||||||
| Sierra 1500 (New Model) | 2019 | 2020 | ||||||
| Yukon | 2015 | 2017 | Automatic 8L90 (M5U, MQE) | |||||
| Involved Region or Country | North America and N.A. Export Regions | |||||||
| Condition | Some customers may comment that the transmission exhibits a harsh 1-2 shift on the first shift of the day, typically under light throttle. | |||||||
| Cause | This condition is due to the initial clutch fill time of the 2-3-4-6-8 (C4) clutch. | |||||||
| Information | Some customers may experience a flare condition on the first 1-2 shift of the day or after the vehicle has been parked for several hours. The condition may have developed after the replacement of a complete transmission assembly or the replacement of the stator support to correct a delayed engagement condition. This is most likely to occur under light throttle conditions. Subsequent 1-2 shifts have acceptable shift feel. Replacing transmission components will not correct the condition. | |||||||
| Correction | Important: Replacing transmission components or complete assemblies will not improve the condition.
The first 1-2 shift of the day may be harsh. The customers’ vehicle should be compared to a like vehicle under the same driving conditions. Do Not replace any parts for this condition. Note: This condition will not impact the designed performance or reliability of the vehicle. |
| Version | 6 |
| Modified | Revised Nov. 18, 2016 – Revised the Cause section. Revised April 6, 2017 – Added models and Revised the Condition, Cause and Correction sections. Revised July 20, 2017 – Updated Model section. Revised May 21, 2018 – Updated Model section. Revised October 08, 2019 – Added 2020 CT4 and updated models to 2020. |
SEOCONTENT-END
Bulletin No.: 16-NA-361
Date: October, 2019
To View or Download this Document Click Here
Bulletin No.: 16-NA-361
Date: July, 2017
To View or Download this Document Click Here
Bulletin No.: 16-NA-361
Date: Apr-2017
To View or Download this Document Click Here
Bulletin No.: 16-NA-361
Date: Nov-2016
To View or Download this Document Click Here
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- Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
- Enhanced anti-shudder protection for smooth shifting and maximum power transfer
- Developed with anti-wear technology to help improve transmission durability
- Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
- Backward compatible with previous DEXRON automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous DEXRON fluids
- Improved performance over previous DEXRON fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance.
- Designed for anti-wear protection and shear stability
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