NHTSA ID Number: 10222832
Manufacturer Communication Number: 22-NA-185
Summary
This informational bulletin explains how the trans slip or flare can be a normal condition.
Condition
Some customers may comment on a 2-3 upshift slip or flare.
Cause
This condition is a NORMAL characteristic of the transmission, it will not cause durability concerns and no repair attempts should be made.
Information
At this time this flare condition has been recognized in two different driving conditions:
1. During the first 2-3 upshift after the vehicle has been sitting, engine off for several hours.
This condition may be caused by air that is trapped in the 3-5-R clutch assembly.
When the first 2-3 upshift is made this trapped air is purged and the following 2-3 shifts will be normal with no flare.
When diagnosing this condition, a garage shift into reverse before drive will purge this air and prevent the 2-3 flare from occurring
This condition is a NORMAL characteristic of the transmission, it will not causedurability concerns and no repair attempts should be made.
Please communicate to the customer this will not impact the designed performance or reliability of the vehicle.
Please share this information with the customer, including a copy of this message.
2. When transmission ATF temperature is at or below 85 degrees F (30 degrees C).
This 2-3 upshift flare can occur until the ATF temperature warms.
If the 2-3 flare is determined to be ATF temperature sensitive use a Tech 2 or GDS2 to make note of the throttle position when the flare occurs
Drive the vehicle to get ATF temperature to at least 104 degrees F (40 degrees C) and then make several 2-3 shifts at the throttle position determined to be the most sensitive to the 2-3 flare.
This will allow the transmission adapts to tailor the shifts and may help to eliminate the cold 2-3 flare.
This condition is a NORMAL characteristic of the transmission, it will not cause durability concerns and no repair attempts should be made.
Please share this information with the customer, including a copy of this message.
358 Affected Products
Vehicles
1 Associated Document
Manufacturer Communications
Bulletin No.: 22-NA-185
Date: October, 2022
https://www.nhtsa.gov/recalls?nhtsaId=10222832
MC-10222832-0001.pdf 524.927KB
MC-10222832-0001
NHTSA ID Number: 10224297
Manufacturer Communication Number: PIP5429A
Summary
This Preliminary Information communication advises the technician that the customer may experience a 2-3 slip or flare after the vehicle has been sitting for a period of time. Technician can update the Transmission Control Module if working on a model year 2007. On all other model years dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5429A
Published date: 09/26/2022
https://www.nhtsa.gov/recalls?nhtsaId=10224297
MC-10224297-9999.pdf 108.445KB
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- 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
- Potential to enable improved fuel economy and longer transmission life
- Provides for extended drain intervals
- 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
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- 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
- Potential to enable improved fuel economy and longer transmission life
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