Supporting Vendors / Dealers - Advertising - Shop

2006 - 2014 Corvette: Service Bulletin: #PIP5429: 2-3 Upshift Slip or Flare - (Oct 10, 2016)

#PIP5429: 2-3 Upshift Slip or Flare - (Oct 10, 2016)

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Cadillac

ATS

2013

2015

All

All

All

6L45

Cadillac

CTS-V

2010

2015

All

All

All

6L90

Cadillac

SRX

2007

2009

All

All

All

6L50

Cadillac

XLR, XLR-V

2006

2009

All

All

All

6L80

Chevrolet

Caprice PPV

2011

2016

All

All

All

6L45, 6L80 

Chevrolet

Colorado

2015

2017

All

All

All

6L50

Chevrolet

Corvette

2006

2014

All

All

All

6L80

Chevrolet

Silverado

2007

2017

All

All

All

6L80, 6L90

Chevrolet

SS

2014

2017

All

All

All

6L80

GMC

Canyon

2013

2017

All

All

All

6L50

GMC

Sierra, Sierra Denali, 

2007

2017

All

All

All

6L80, 6L90

Hummer

H2, H2 SUT

2008

2011

All

All

All

6L80

 

Involved Region or Country

NORTH AMERICA and N.A. EXPORT REGIONS

Additional RPO/s:

N/A

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.

Service Procedure:

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 cause durability concerns and no repair attempts should be made.

  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 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.

Notice: A revised TCM calibration has been released and is available on TIS2WEB to improve this concern in 2007 vehicles equipped with the 6L90 RPO MYD automatic transmission

0 (0)
Article Rating (No Votes)
Rate this article
Attached Files
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Name
Email
Security Code Security Code
Related Articles RSS Feed
2017 Corvette: Service Bulletin: #17098: Service Update - 8-Speed Transmission Check Engine Light - (Mar 23, 2017)
Viewed 763 times since Fri, Mar 24, 2017
2007 Corvette: Service Bulletin: 6L80 Busy Shifting 30-50mph
Viewed 695 times since Mon, Jul 14, 2014
2015 - 2017 Corvette: Service Bulletin: #16-NA-364: Delayed Engagement After Sitting With Engine Off - Clutch Slow to Fill
Viewed 634 times since Tue, Jul 4, 2017
2006 Corvette: Service Bulletin: 6L80 Automatic Transmission Delayed Engagement From PARK to DRIVE or PARK to REVERSE (Reprogram Transmission Control Module (TCM))
Viewed 5275 times since Tue, Jul 15, 2014
2015 Corvette: GM TechLink: Reprogramming Procedures for the 8L90 8-Speed Transmission
Viewed 2944 times since Tue, Apr 14, 2015
2014 Corvette: Recall: Low Rear Differential Fluid Level
Viewed 1583 times since Wed, Aug 13, 2014
2017 Corvette: Service Bulletin: #16-NA-404: Harsh Shift, Delayed Shift, unwanted Downshift, Transmission Stuck in One Gear, Erratic Shifting, Hesitation or Have a Malfunction Indicator Lamp (MIL) Illuminated
Viewed 576 times since Sat, Apr 8, 2017
2006 - 2008 Corvette: GM TechLink: 6L80 or 6L90 Automatic Transmission Shift Conditions
Viewed 2506 times since Thu, Jul 3, 2014
2008 Corvette: Service Bulletin: Clutch Pedal Effort Complaint
Viewed 972 times since Sun, Jul 13, 2014