Bulletin No.: 13434B
Date: May 2014

Program Bulletin

CUSTOMER SATISFACTION PROGRAM
SUBJECT:

Air Conditioning System Inoperative or Cools Intermittently

MODELS:

2013-2014 Chevrolet Spark

The switch installation procedure has been revised. A Caution statement has been added before
Step 2, a revised illustration for Step 18 has been added, and Steps 26 & 27 have been revised.
Please discard all copies of bulletin 13434A.

THIS PROGRAM IS IN EFFECT UNTIL APRIL 30, 2016.
CONDITION
Certain 2013-2014 model year Chevrolet Spark vehicles may have a condition where the air
conditioning (A/C) system does not work or cools intermittently due to inaccurate control of the
evaporator temperature sensor.
CORRECTION
Dealers are to inspect and, if necessary, replace the A/C compressor. Dealers are to also, if
necessary, replace the Evaporative Air Temperature (EAT) Sensor, install a low pressure switch
adaptor kit, and reprogram the Body Control Module.
VEHICLES INVOLVED
All involved vehicles are identified by Vehicle Identification Number on the Investigate Vehicle
History screen in GM Global Warranty Management system. Dealership service personnel
should always check this site to confirm vehicle involvement prior to beginning any required
inspections and/or repairs. It is important to routinely use this tool to verify eligibility because not
all similar vehicles may be involved regardless of description or option content.
For dealers with involved vehicles, a listing with involved vehicles containing the complete vehicle
identification number, customer name, and address information has been prepared and will be
provided to dealers through the GM GlobalConnect Recall Reports. Dealers will not have a report
available if they have no involved vehicles currently assigned.
Copyright 2014 General Motors. All Rights Reserved.

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May 2014

Bulletin No.: 13434B

The listing may contain customer names and addresses obtained from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other than follow-up
necessary to complete this program is a violation of law in several states/provinces/countries.
Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete
this program.
PART INFORMATION
Parts required to complete this program are to be obtained from General Motors Customer Care
and Aftersales (GMCC&A). Please refer to your “involved vehicles listing” before ordering parts.
Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency
situation, parts should be ordered on a CSO = Customer Special Order.
Note: Very few A/C compressors are expected to require replacement. If inspection
determines replacement is necessary, obtain parts from GMCC&A. Do not order
A/C compressors for shelf stock.
Part Number
95442733

Description
FILTER, A/C REFRIG

94780910

HARNESS PKG, ACSRY WRG

Quantity/Vehicle
1
(if req'd)
1
(if req'd)

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May 2014

Bulletin No.: 13434B

SERVICE PROCEDURE
A/C Refrigerant Filter Kit

3782696

Wiring Harness Kit

3782704

3782709

3782711

Is the A/C system operating normally? (Confirm at idle using the SI A/C Performance Specs)


Follow the breakpoint dates below for pressure switch, wiring harness, and BCM software
update.

If the A/C system is not working (Due to compressor failure, validate failure is not leak related)


Replace the A/C compressor



Follow the breakpoint dates below for pressure switch, wiring harness and BCM software
update.

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May 2014

Bulletin No.: 13434B

Breakpoints
Note: Inspect Investigate Vehicle History in Global Warranty Management (GWM) system for
the below labor codes.
Bulletin
Number

Associated
Labor Code

PI1013

4480068

If not performed, use labor code
in this bulletin for submission

PI1121

4480108

If not performed, use labor code
in this bulletin for submission

Comments

For vehicles built prior to November 22, 2012


Check to see if PI1013 (EAT sensor and cam link) was performed. If not, install the parts
as per PI1013 before next step.



If PI1121 (A/C hoses with pressure switch/wiring harness attached) has already been
installed, no further action needed. Submit warranty transaction using appropriate labor
code found in this bulletin.



If PI1121 (A/C hoses with pressure switch/wiring harness attached) has not been installed,
install the new refrigerant filter w/pressure switch and wiring harness. No BCM software
update needed. Proceed to A/C Compressor Checking Procedure below.

For vehicles built after November 21, 2012


If PI1121 (A/C hoses with pressure switch/wiring harness attached) has already been
installed, update the BCM software only, use the new calibration in TIS2Web. No further
action needed. Submit warranty transaction using appropriate labor code found in this
bulletin.



If PI1121 (A/C hoses with pressure switch/wiring harness attached) has not been installed,
install the new refrigerant filter w/pressure switch, wiring harness and update the BCM
software with the new calibration in TIS2Web. Proceed to A/C Compressor Checking
Procedure below.

A/C Compressor Checking Procedure
Note : The A/C compressor will not operate properly in cold outside air temperatures.
Note: To perform the A/C compressor check the vehicle must be in 59-95F/15-35℃ ambient
temperature or indoor.
1. Install the A/C charging equipment to the A/C hose service ports (High & Low).
2. Start the engine and operate the A/C system as indicated below.


A/C (On), Fan Speed (Max), Temperature (Full Cold), Recirculation Mode (On), Air
Delivery (Vent), Window Open.

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May 2014

Bulletin No.: 13434B

3. After 3 minutes of idle, check the LP (Low Side Pressure) & HP (High Side Pressure) on the
A/C Charging Equipment.


Check pressure at idle.



Is the A/C LP over 450 kPa (65 psi) or the difference between HP and LP under 350 kPa
(51 psi)?
 If no - Install the low pressure switch kit, wiring harness and reprogram BCM as per
the above breakpoints.
 If yes - Replace the A/C compressor, install the low pressure switch kit,
wiring harness, and reprogram the BCM as per above breakpoints.

A/C Lower Pressure Switch Installation
1. Recover the A/C charge. (Refer to Refrigerant Recovery and Recharging in SI).
Caution: The negative battery cable MUST be disconnected before working on the A/C system.
If the negative battery cable is NOT disconnected before removing the IP wiring harness
connector, the outside air temperature sensor will set to the default value of -40 degrees to
prevent A/C compressor damage. If the negative battery cable is NOT disconnected, the
outside air temperature will have to be updated. The A/C compressor will operate normally
when the outside air temperature sensor is updated. To update the outside air temperature
sensor, either wait 250 minutes with the ignition in the off position or drive the vehicle over 19
mph (30 km/h) for 5 minutes. The outside air temperature sensor may not update when vehicle
is at idle or driven lower than 16 mph (25 km/h).
2. Remove the battery negative cable.

3782715

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Bulletin No.: 13434B

3782917

3. Remove the A/C evaporator hose assembly bolt.
4. If necessary to replace the A/C compressor according to result of compressor checking
procedure, replace the A/C compressor.(Refer to A/C Compressor Replacement in SI)

3782696

3782927

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May 2014

Bulletin No.: 13434B

3782935

5. Install the A/C Refrigerant Filter between A/C compressor and evaporator hose with both
seals, as shown above. Tighten bolt to 22 N·m (16 lb ft).

3782938

6. Remove the glove box assembly.

3782940

7. Remove the front side door sill trim plate.

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May 2014

Bulletin No.: 13434B

3653899

3653901
(1) Inline Body Connector
(2) IP Connector

8. Under the dash, disconnect the inline body connector and IP connector from the harness and
disconnect the washer hose.

3655568

9. Remove the harness clip shown below.

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May 2014

Bulletin No.: 13434B

3650563

10. Locate the harness grommet under the hood and remove from the opening. Pull through the
harness and connectors from the interior of the vehicle.
Note: DO NOT pull the harness through opening by the grommet.

3654455

11. Remove the tape from the harness at the grommet and slide down past the conduit.

3654012

12. With the new supplied harness with the connector shown above, insert the harness with
terminal ends through the center of the grommet and pull through up to the conduit.

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May 2014

Bulletin No.: 13434B

3653892

3653894

13. Insert the terminals into IP in-line connector. Refer to the pictures above.

3653917

14. Insert the wiring harness back through the I/P opening and install the grommet.
15. Position the grommet back to its original position and tape the harness to the grommet.
16. Insert the wiring harness back through the I/P opening and install the grommet.

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May 2014

Bulletin No.: 13434B

3782943

17. Route the new harness along the FWD wiring harness and attach with tie straps as shown.

3828227

18. Connect the connector to the Low Pressure Switch and attach the new harness with C-clips
to the A/C pipe.

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May 2014

Bulletin No.: 13434B

3654460

19. Inside the vehicle, disconnect the EVAP TEMP sensor connector.

3654138

20. With the second part of the new harness kit, install the pigtail connector to the EVAP TEMP
sensor connector.

3653909

21. Install the terminals into the FWD in-line connector as shown above.

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May 2014

Bulletin No.: 13434B

3653906

22. Wrap sponge tape around the EVAP TEMP connector as shown above.
23. Connect the remaining harness connectors and washer hose and install harness clip.
24. Install the front side door sill trim plate. Refer to Front Side Door Sill Trim Plate Replacement.

3650599

25. Route the wires along the A/C system wiring harness under the HVAC module assembly and
attach with four evenly spaced zip ties.
26. Only update the BCM software with the current calibration in TIS2Web using the VIN
breakpoints.
(Refer to Body Control Module Programming and Setup in SI)


The BCM software will be automatically chosen with new part numbers in TIS2Web.

27. Recheck the A/C pressures. At 3 minutes of idle, check the LP (Low Side Pressure) & HP
(High Side Pressure) using the A/C Charging Equipment according to “A/C Compressor
Checking Procedure”.
- Check pressure at idle.
- Is the A/C LP over 450 kPa (65 psi) or the difference between HP and LP under 350 kPa
(51 psi)?
-

If No - normal condition.

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-

May 2014

Bulletin No.: 13434B

If Yes – Refer to SI for diagnostics.

COURTESY TRANSPORTATION
The General Motors Courtesy Transportation program is intended to minimize customer
inconvenience when a vehicle requires a repair that is covered by the New Vehicle Limited
Warranties. The availability of courtesy transportation to customers whose vehicles are within the
warranty coverage period and involved in a product program is very important in maintaining
customer satisfaction. Dealers are to ensure that these customers understand that shuttle service
or some other form of courtesy transportation is available and will be provided at no charge.
Dealers should refer to the General Motors Service Policies and Procedures Manual for Courtesy
Transportation guidelines.
WARRANTY TRANSACTION INFORMATION
Submit a transaction using the table below. All transactions should be submitted as a ZFAT
transaction type, unless noted otherwise.
Labor
Code

Description

Labor
Time

For Vehicles Built PRIOR to November 22, 2012
9100475
9100417
9100418
9100419
9100420

A/C System Operating Properly & PI's Already Completed – No Further
Action Req'd
Replace EAT Sensor & Cam Link
Install Low Pressure S/W Kit & Wiring Harness
Replace EAT Sensor, Cam Link, & Install Low Pressure S/W Kit
Replace A/C Compressor, EAT Sensor, Cam Link, & Install Low
Pressure S/W Kit

0.2
0.4
1.0*
1.4*
2.0*

For Vehicles Built AFTER November 21, 2012
9100421
9100373
9100374

Reprogram BCM
Install Low Pressure S/W Kit and Reprogram BCM
Replace A/C Compressor, Install Low Pressure S/W Kit, Wiring
Harness, & Reprogram BCM

0.5
1.5*
2.1*

* Includes evacuation/recharging the A/C system.
CUSTOMER NOTIFICATION
General Motors will notify customers of this program on their vehicle (see copy of customer letter
included with this bulletin).

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Bulletin No.: 13434B

DEALER PROGRAM RESPONSIBILITY
All unsold new vehicles in dealers' possession and subject to this program must be held and
inspected/repaired per the service procedure of this program bulletin before customers take
possession of these vehicles.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless
of mileage, age of vehicle, or ownership, through April 30, 2016.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which
there is no customer information indicated on the involved vehicle listing, are to be contacted by
the dealer. Arrangements are to be made to make the required correction according to the
instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for
your use in contacting customers. Program follow-up cards should not be used for this purpose,
since the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in your
facility for service through April 30, 2016, you must take the steps necessary to be sure the
program correction has been made before selling or releasing the vehicle.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that
may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the tools,
equipment, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to
your vehicle, or that your vehicle will have that condition. See your dealer for information on whether your vehicle may benefit from the information.

We Support
Voluntary Technician
Certification

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May 2014

Bulletin No.: 13434B
April 2014

Dear General Motors Customer:
We have learned that your 2013-2014 model year Chevrolet Spark vehicle may have a condition
where the air conditioning (A/C) system does not work or cools intermittently due to inaccurate
control of the evaporator temperature sensor.
Your satisfaction with your Chevrolet Spark is very important to us, so we are announcing a
program to prevent this condition or, if it has occurred, to fix it.
What We Will Do: Your GM dealer will inspect and, if necessary, replace the A/C compressor.
Your dealer will also, if necessary, replace the Evaporative Air Temperature (EAT) Sensor,
install a low pressure switch adaptor kit, and reprogram the Body Control Module. This service
will be performed for you at no charge until April 30, 2016. After that, any applicable warranty
will apply.
What You Should Do: To limit any possible inconvenience, we recommend that you contact
your dealer as soon as possible to schedule an appointment for this repair. By scheduling an
appointment, your dealer can ensure that the necessary parts will be available on your
scheduled appointment date.
If you have any questions or concerns that your dealer is unable to resolve, please contact the
appropriate Customer Assistance Center at the number listed below.
Division

Number

Chevrolet
Guam
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

1-800-222-1020
65-6267-1752
1-800-496-9992
1-800-496-9993
1-800-496-9994

Text Telephones
(TTY)
1-800-833-2438

We sincerely regret any inconvenience or concern that this situation may cause you. We want
you to know that we will do our best, throughout your ownership experience, to ensure that your
Chevrolet Spark provides you many miles of enjoyable driving.
Jim Moloney
General Director,
Customer and Relationship Services
13434