PIT4351E

Service Bulletin Details

Public Details for: PIT4351E

Normal characteristic - rusty or corroded appearance on exhaust component.


- 2015 - 2014 - 2013 - 2012 - 2011 - 2010 - 2009 - 2008 - 2007 -

File in Section:
Service Bulletin
Bulletin No.:
Date:
PIT4351E
December, 2014
PRELIMINARY INFORMATION
Subject:
Normal Characteristic - Rusty or Corroded Appearance on Exhaust Component
Models:
2008-2015 Buick Enclave
2009-2015 Chevrolet Traverse
2007-2015 GMC Acadia
2007-2010 Saturn Outlook
This PI was superseded to update Model Years. Please discard PIT4351D.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
GM Engineering has investigated reports of a rusty or corroded appearance on the exhaust components for new
vehicles being received at the dealer. During certain times of the year, vehicles being produced in Michigan may be
exposed to road salt which is used to maintain roads in the winter months. This salt may be present on the plant
premises, city streets around the plant, or on the transport truck. During transit between the plant and the dealer
some of the exhaust components may corrode as a result of this salt exposure. These exhaust parts are made of a
bare mild-grade stainless steel that will oxidize, or appear rusty. Over time, these components will have a uniform
rust-like discoloration, which should be considered a normal condition.
These components have been tested to 10+ years in normal service and the Vehicle Technical Specifications
stipulate that cosmetic corrosion on these parts, which are not easily visible to the customer, should be considered
an acceptable condition. Customers should be assured that these parts, even though they may have cosmetic
corrosion, will not wear out prematurely or have any type of durability concern occur.
Recommendation/Instructions
This is a normal condition and these components should not be replaced for this surface or cosmetic corrosion.
Customer Information
Please communicate to the customer this condition is a normal operating characteristic of their vehicle. It will not
impact the designed performance or reliability of the vehicle. Please share this information with the customer,
including a copy of this message.
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.


© dot.report 2024

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.