GM Bulletin No.: 14034
Date: February 2014

Service Bulletin

SERVICE UPDATE
SUBJECT:

Service Update for Inventory Vehicles Only
Fuse Block Retention
Expires February 28, 2016

MODELS:

2015 Chevrolet Silverado HD
2015 GMC Sierra HD
Equipped With 220 Amp Generator (KW5)

Vehicles involved in this service update were placed on stop delivery February 3, 2014.
Once the service procedure contained in this bulletin has been performed on the vehicle,
the vehicle is released from stop delivery and can be delivered to the customer.
All involved vehicles that are in dealer inventory must be held and not delivered to
customers, dealer traded, or used for demonstration purposes until the repair contained in
this bulletin has been performed on the vehicle.
This service update involves vehicles in dealer inventory only and expires February 28,
2016.
PURPOSE
This bulletin provides a service procedure to ensure that the fuse block, located on top of the
passenger side shock tower in the engine compartment, is properly retained on certain 2015
model year Chevrolet Silverado and GMC Sierra HD vehicles equipped with a 220 amp generator
(KW5). The retention clips that attach the fuse block to the body can become loose allowing the
fuse block to move out of position. If this occurs, exposed conductors in the fuse block may
contact the mounting studs causing a short to ground event and possibly an engine compartment
fire.
This service procedure should be completed on involved vehicles currently in dealership
inventory as soon as possible but no later than February 28, 2016, at which time this
bulletin will expire.
VEHICLES INVOLVED
All involved vehicles are identified by VIN in the Global Warranty Management System –
Investigate Vehicle History Application. Dealership technicians should always check this site to
confirm vehicle involvement prior to beginning any required inspections and/or repairs. It is
Copyright 2014 General Motors. All Rights Reserved.

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February 2014

Bulletin No.: 14034

important to routinely use this tool to verify eligibility because not all similar vehicles may be
involved regardless of description or option content.
Additionally, a list of involved vehicles currently in dealer inventory is available on the “Service
Update Bulletin Information” link under the “Service” tab in GM GlobalConnect (US) or attached
to the GlobalConnect message (Canada) used to release this bulletin.
PART INFORMATION
The parts required to complete this service update will be shipped at no charge to involved dealers
of record by the GM Warranty Parts Center. This shipment is scheduled for February 6, 2014.
The involved kit number is WPC744. Kits will be shipped via UPS Next Day Air. Each kit contains
two black barrel clips, two black tie straps, one black polyolefin side window shield and one black
polyolefin bottom shield. One kit is required per vehicle. If necessary, additional kits may be
ordered from the GM Warranty Parts Center. Dealers must use the request form included with
this bulletin. Do not order from GMCCA.
SERVICE PROCEDURE

3709055

1. Open the hood and locate the fuse block housing assembly. The fuse block housing
assembly (7) is located on the right (passenger) side shock tower (8) in the engine
compartment.
2. Determine if the fuse block housing assembly rework has been performed.

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Bulletin No.: 14034

3709060



A fuse block housing assembly that has NOT been reworked will have two brown clips
(1) that secure the fuse block housing assembly to the shock tower studs. The fuse
block housing cover will also NOT have a black polyolefin side window shield (5) or a
black polyolefin bottom shield that is secured to the fuse block housing assembly with
two black tie straps. If the fuse block housing assembly rework has NOT been
performed, perform the rework procedure in this bulletin. Proceed to step 3.

3709065



A reworked fuse block housing assembly will have two black clips (1) that secure the
fuse block housing assembly to the shock tower studs. The fuse block housing cover
will also have a black polyolefin side window shield (5) and the bottom of the fuse block
housing will have black polyolefin bottom shield that is secured to the housing assembly
with two black tie straps (6). If the rework has been completed, no further action is
required.

3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and
Connection in SI.

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Bulletin No.: 14034

3709042

Note: Review the current orientation of the brown clips (1) on the fuse block. Ensure the black
clips are installed in the same orientation as the brown clips were installed.
4. Remove the brown clips (1) from the fuse block using wire cutters or similar tool.
5. Discard the brown clips.
6. Install the black clips onto the fuse block.

3709046

7. Remove the fuse block housing assembly cover (4) from the base of the fuse block (3). The
cover (4) is held secure by four small cleats.

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Bulletin No.: 14034

3709073

8. Determine if the cable routing is correct. The starter cable (1) routes forward of the other two
fuse-center cables (2).


If the cable routing is correct, proceed to step 9. Refer to the ‘A’ portion of the photograph
for the correct routing of the cables. The starter cable (1) is forward of the two fuse center
cables.



If the cable routing is NOT correct, unfasten the fuse center cable (2) that is to the right of
starter cable (1). Refer to the ‘B’ portion of the photograph to view the incorrect routing of
the cables. The starter cable (1) is routed in between the two fuse center cables. Reroute
the right fuse center cable (2) to ensure the starter cable (1) is routed forward of the two
center fuse cables. Next, re-install the fuse center cable (2) to the fuse block. Proceed to
step 9 after correcting the cable routing.

3709077

9. Insert a 23 x 26 mm (0.90 in x 1 in) black polyolefin shield inside the fuse block cover in the
fuse block cover window area (5) as shown in the ‘A’ portion of the photograph.
10. Snap the fuse cover over the fuse block base as shown in the ‘B’ portion of the photograph.
This will wedge the black polyolefin shield into place and close off the side fuse cover window
(5).

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Bulletin No.: 14034

3709038

11. Place a 38 x 100 mm (1.5 in x 3.9 in) black polyolefin shield (10) over the bottom of the fuse
block.
12. Secure the black polyolefin shield (10) to the bottom side of the fuse block using the two tie
straps (6).
13. Pull the tie straps (6) tightly to secure the shield to the bottom side of the fuse block.
14. Cut the excess tail from the tie straps.

3709051

15. Secure the black clips on the fuse block housing assembly to the shock tower studs.
16. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and
Connection in SI.

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Bulletin No.: 14034

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
9100358
9100359
*

Description
Fuse Block Inspection Only (No Further Action Required)
Fuse Block Inspection and Repair
Add: Route Cable

Labor
Time
0.2
0.5*
0.1

Repair kit provided at no charge. Do not submit for part cost.

DEALER PROGRAM RESPONSIBILITY
Dealers must take the steps necessary to ensure that the service update correction has been
made to all involved vehicles in dealer inventory before selling or dealer-trading the vehicle, but
no later than February 28, 2016.

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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Bulletin No.: 14034

MISSING INFORMATION WILL DELAY OR PREVENT THE PART FROM BEING SHIPPED
Part Request Form — Warranty Parts Center
Use this form ONLY for U.S. & Canada Dealers. Export markets & Mexico
Dealers must contact their regional Technical Assistance Center for assistance.
To: Warranty Parts Center
"E-Mail" [email protected]
or WPC Fax #: 248–371–0192
Attn: Amina Winfrey
Part Being Requested: SERVICE UPDATE BULLETIN 14034 – WPC744

Dealer BAC (U.S.) / Dealer Code (Canada):

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 emailing or
faxing your part request to the Warranty Parts Center, please call WPC Customer
Assistance at 248-371-9901/9902.