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2006 - 2009 Cadillac XLR - XLR-V: Service Bulletin: #PIP4112R: Normal Characteristic - Sag Or Hesitation On Acceleration - (Mar 24, 2017)

#PIP4112R: Normal Characteristic - Sag Or Hesitation On Acceleration - (Mar 24, 2017)

Subject Normal Characteristic - Sag Or Hesitation On Acceleration

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Buick

Enclave

2008-2012

All

All

All

All

Buick

LaCrosse

2010-2011

All

All

All

MH7

Buick

LaCrosse

2010-2013

All

All

All

MH2, MH4

Buick

Regal

2011

All

All

All

MH7

Cadillac

XLR

2006 - 2009

All

All

All

All

Cadillac

XLR-V

2006 - 2009

All

All

All

All

Cadillac

STS

2006-2011

All

All

All

All

Cadillac

STS-V

2006 - 2011

All

All

All

All

Cadillac

SRX

2007-2012

All

All

All

All

Cadillac

Escalade Models

2007-2017

All

All

All

All

Cadillac

CTS

2008-2017

All

All

All

All

Cadillac

CTS-V

2008 - 2017

All

All

All

All

Cadillac

ATS

2013-2017

All

All

All

All

Cadillac

ATS-V

2013 - 2017

All

All

All

All

Cadillac

CT6

2016-2017

All

All

All

All

Chevrolet

Corvette

2006-2017

All

All

All

All

Chevrolet

Avalanche

2007-2013

All

All

All

All

Chevrolet

Silverado

2007-2017

All

All

All

All

Chevrolet

Suburban

2007-2017

All

All

All

All

Chevrolet

Tahoe

2007-2017

All

All

All

All

Chevrolet

Colorado

2015-2017

All

All

All

All

Chevrolet

Malibu

2008-2011

All

All

All

MH8

Chevrolet

Malibu

2008-2013

All

All

All

MH2

Chevrolet

Equinox

2008-2012

All

All

All

MH2, MH4

Chevrolet

Equinox

2009-2011

All

All

All

MHC, MH7

Chevrolet

Traverse

2009-2012

All

All

All

All

Chevrolet

Cruze

2011

All

All

All

All

Chevrolet

Captiva Sport

2012

All

All

All

MHJ, MHK

Chevrolet

Orlando

2012

All

All

All

All

Chevrolet

Sonic

2012

All

All

All

MH9

Chevrolet

Impala

2012-2013

All

All

All

All

Chevrolet

SS

2014

All

All

All

All

GMC

Sierra

2007-2017

All

All

All

All

GMC

Yukon Models

2007-2017

All

All

All

All

GMC

Canyon

2015-2017

All

All

All

All

GMC

Acadia

2008-2012

All

All

All

All

GMC

Terrain

2010-2012

All

All

All

MH2, MH7

GMC

Terrain

2010-2011

All

All

All

MHC, MH7

GMC

Savana

2010-2017

All

All

All

All

Hummer

H2

2008-2011

All

All

All

All

Pontiac

G6

2007-2010

All

All

All

MH2

Pontiac

G6

2009-2010

All

All

All

MH8

Pontiac

G8

2008-2009

All

All

All

All

Pontiac

Torrent

2008-2009

All

All

All

MH2, MH4

Saturn

Aura

2007-2009

All

All

All

MH2

Saturn

Aura

2009

All

All

All

MH8

Saturn

Outlook

2008-2010

All

All

All

MH2, MH4

Saturn

Vue

2008-2010

All

All

All

MH2, MH4

*Excludes vehicles equipped with Diesel Engines

Supersession Statement

This PI was superseded to update models and models years. Please discard PIP4112Q. 

Correction

Some customers may comment on a sag or hesitation when accelerating under the following conditions:

When coasting at low speeds of less than 15 miles per hour with a closed throttle and then aggressively applying the throttle.

Examples of this maneuver include a rolling stop or a lane change maneuver. In this type of maneuver, even though the accelerator is applied aggressively, the throttle blade is opened slowly for up to 0.7 seconds to help minimize drive-line lash and clunking.

Also in a vehicle equipped with a six speed automatic transmission when making a hard, complete stop with a closed throttle, immediately followed by an aggressive throttle opening the transmission down-shifts may not be completed by the time the throttle is opened.

As a result approximately 0.5 seconds of ″zero″ torque may be commanded to allow the shift to first gear to occur.

Recommendations / Instructions

Both of the above conditions are a result of Torque Management and both of these conditions should be considered normal and no repairs should be attempted.

Please follow this diagnostic or repair process thoroughly and complete each step.

If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

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