Service Bulletin: #PIP4112R: Normal Characteristic - Sag Or Hesitation On Acceleration

[Rob]

[h=3]#PIP4112R: Normal Characteristic - Sag Or Hesitation On Acceleration - (Mar 24, 2017)[/h]

Subject:

Normal Characteristic - Sag Or Hesitation On Acceleration

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Brand:	Model:	Engine:	Transmission:
from	to	from	to
Buick	Enclave	All	All	All	All
Buick	LaCrosse	All	All	All	MH7
Buick	LaCrosse	All	All	All	MH2, MH4
Buick	Regal	All	All	All	MH7
Cadillac	XLR	All	All	All	All
Cadillac	XLR-V	All	All	All	All
Cadillac	STS	All	All	All	All
Cadillac	STS-V	All	All	All	All
Cadillac	SRX	All	All	All	All
Cadillac	Escalade Models	All	All	All	All
Cadillac	CTS	All	All	All	All
Cadillac	CTS-V	All	All	All	All
Cadillac	ATS	All	All	All	All
Cadillac	ATS-V	All	All	All	All
Cadillac	CT6	All	All	All	All
Chevrolet	Corvette	All	All	All	All
Chevrolet	Avalanche	All	All	All	All
Chevrolet	Silverado	All	All	All	All
Chevrolet	Suburban	All	All	All	All
Chevrolet	Tahoe	All	All	All	All
Chevrolet	Colorado	All	All	All	All
Chevrolet	Malibu	All	All	All	MH8
Chevrolet	Malibu	All	All	All	MH2
Chevrolet	Equinox	All	All	All	MH2, MH4
Chevrolet	Equinox	All	All	All	MHC, MH7
Chevrolet	Traverse	All	All	All	All
Chevrolet	Cruze	All	All	All	All
Chevrolet	Captiva Sport	All	All	All	MHJ, MHK
Chevrolet	Orlando	All	All	All	All
Chevrolet	Sonic	All	All	All	MH9
Chevrolet	Impala	All	All	All	All
Chevrolet	SS	All	All	All	All
GMC	Sierra	All	All	All	All
GMC	Yukon Models	All	All	All	All
GMC	Canyon	All	All	All	All
GMC	Acadia	All	All	All	All
GMC	Terrain	All	All	All	MH2, MH7
GMC	Terrain	All	All	All	MHC, MH7
GMC	Savana	All	All	All	All
Hummer	H2	All	All	All	All
Pontiac	G6	All	All	All	MH2
Pontiac	G6	All	All	All	MH8
Pontiac	G8	All	All	All	All
Pontiac	Torrent	All	All	All	MH2, MH4
Saturn	Aura	All	All	All	MH2
Saturn	Aura	All	All	All	MH8
Saturn	Outlook	All	All	All	MH2, MH4
Saturn	Vue	All	All	All	MH2, MH4

<thead>
[TH="colspan: 2"]Model Year:
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[TH="colspan: 2"]VIN:
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</thead><tbody>
[TD="colspan: 2"]2008-2012
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[TD="colspan: 2"]2010-2011
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[TD="colspan: 2"]2010-2013
[/TD]

[TD="colspan: 2"]2011
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[TD="colspan: 2"]2006 - 2009
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[TD="colspan: 2"]2006 - 2009
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[TD="colspan: 2"]2006-2011
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[TD="colspan: 2"]2006 - 2011
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[TD="colspan: 2"]2007-2012
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[TD="colspan: 2"]2007-2017
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[TD="colspan: 2"]2008-2017
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[TD="colspan: 2"]2008 - 2017
[/TD]

[TD="colspan: 2"]2013-2017
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[TD="colspan: 2"]2013 - 2017
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[TD="colspan: 2"]2016-2017
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[TD="colspan: 2"]2006-2017
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[TD="colspan: 2"]2007-2013
[/TD]

[TD="colspan: 2"]2007-2017
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[TD="colspan: 2"]2007-2017
[/TD]

[TD="colspan: 2"]2007-2017
[/TD]

[TD="colspan: 2"]2015-2017
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[TD="colspan: 2"]2008-2011
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[TD="colspan: 2"]2008-2013
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[TD="colspan: 2"]2008-2012
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[TD="colspan: 2"]2009-2011
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[TD="colspan: 2"]2009-2012
[/TD]

[TD="colspan: 2"]2011
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[TD="colspan: 2"]2012
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[TD="colspan: 2"]2012
[/TD]

[TD="colspan: 2"]2012
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[TD="colspan: 2"]2012-2013
[/TD]

[TD="colspan: 2"]2014
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[TD="colspan: 2"]2007-2017
[/TD]

[TD="colspan: 2"]2007-2017
[/TD]

[TD="colspan: 2"]2015-2017
[/TD]

[TD="colspan: 2"]2008-2012
[/TD]

[TD="colspan: 2"]2010-2012
[/TD]

[TD="colspan: 2"]2010-2011
[/TD]

[TD="colspan: 2"]2010-2017
[/TD]

[TD="colspan: 2"]2008-2011
[/TD]

[TD="colspan: 2"]2007-2010
[/TD]

[TD="colspan: 2"]2009-2010
[/TD]

[TD="colspan: 2"]2008-2009
[/TD]

[TD="colspan: 2"]2008-2009
[/TD]

[TD="colspan: 2"]2007-2009
[/TD]

[TD="colspan: 2"]2009
[/TD]

[TD="colspan: 2"]2008-2010
[/TD]

[TD="colspan: 2"]2008-2010
[/TD]

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*Excludes vehicles equipped with Diesel Engines
Supersession Statement
This PI was superseded to update models and models years. Please discard PIP4112Q.
<dl><dt>Correction</dt><dd>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 / InstructionsBoth 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.
</dd></dl>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.