File in Section:
Bulletin No.:

Service Bulletin

Date:

PI0935A
April, 2013

PRELIMINARY INFORMATION
Subject:

Odor from HVAC System with Temperature Control Set on High Heat and Engine at
Operating Temperature

Models:

2011-2013 Chevrolet Cruze

This PI is being revised to update the models information to remove engine RPO restriction.
Please discard PI0935.

Condition/Concern
Some customer may comment on an odor from the HVAC system. This condition occurs with the engine at operating
temperature and the instrument panel temperature control set on the full heat setting. This condition may be
described as a coolant odor among other descriptions.
This condition may be caused by an unpleasant odor coming from the grease used to lubricate the components
inside of the heater and air conditioning evaporator case.

Recommendation/Instructions
Use the following steps to diagnose and repair the condition:
• Bring the vehicle up to operating temperature and verify the condition by closing the vehicle doors, idling the car
and selecting full heat. You may wish to leave vehicle idle for several minutes with heat on high, open the driver
door and verify the concern.
• Follow PI0740 to ensure that the odor is not coolant, as described in the PI.
Tip: Using a digital camera, photograph the routing of the instrument panel wiring harness before removal. This will
aid in the re-assembly process.
1. With the condition verified, replace the heater and air conditioning evaporator case. Refer to Heater and Air
Conditioning Evaporator Case Replacement in SI.
2. With the heater core removed from the case, inspect for contamination from the assembly grease. Clean as
necessary.
3. Transfer the following items from the old assembly:
• Floor air outlet cover
• Temp valve actuator/screws
• Mode valve actuator/gear/screws
• Temp sensor(s), if equipped
• Wiring harness

Parts Information
The revised Heater and Air Conditioning Evaporator Case Assembly is not in stock at this time. Use the Warranty
Parts Center (WPC) form below to obtain the assembly. The balance of the parts should be ordered through normal
channels.
Part Number

Description

Quantity

WPC 710

Heater and Air Conditioning Evaporator Case Assembly

1

13406309

Heater and Air Conditioning Evaporator Case Gasket Kit (With RPO
C67 or C68)

1

13406315

Heater and Air Conditioning Evaporator Case Gasket Kit (With
RPO C42)

Part Number

Description

Quantity

11514519

Steering Column Nut

4

11611451

Tether Clip

2

Labor Operation

Description

Labor Time

D2511

Heater and Air Conditioning Evaporator Case Replacement

Use Published
Labor
Operation Time

Warranty Information
For vehicles repaired under warranty, use:

IMPORTANT NOTE WHEN PRINTING THIS FORM: If the form prints out on two pages, make certain you fax BOTH
pages so that the WPC receives all the needed information. Missing information will delay or prevent the part from
being shipped.
Parts Request Form – Warranty Parts Center
Use this form ONLY for U.S., Canadian and Mexico Dealers. Export markets located outside of North America must
contact their regional Technical Assistance Center for assistance.
To: Warranty Parts Center
e-mail: [email protected]
or WPC Fax: 248-371-0192
Attn: Jeanette Dunn
Part Being Requested: WPC 710 Heater and Air Conditioning Evaporator Case Assembly
Dealer BAC (U.S.) /Dealer Code (Canada)/Dealer Number (Mexico):
Dealer Name:
Dealer Address:

Dealer Contact Person:
Dealer Phone Number:
Repair Order Number:
Vehicle VIN:
Important: If you do not receive the part within 2 business days after e-mailing or faxing your part request to the Warranty Parts
Center, please call Customer Assistance at 248-371-9901/9902.
IMPORTANT NOTE WHEN PRINTING THIS FORM: If the form prints out on two pages, make certain you fax BOTH pages so
that the WPC receives all the needed information. Missing information will delay or prevent the part from being shipped.