Bulletin No.:
Date:

14041
May 2014

Program Bulletin
CUSTOMER SATISFACTION PROGRAM
SUBJECT:

Front Strut Noise Phase II

MODELS:

2013 Chevrolet Trailblazer

CONDITION
On some 2013 model year Chevrolet Trailblazer vehicles, squeaking or creaking noise may be
heard from the front suspension during driving.
CORRECTION
Change the Spring Seat Isolator (Improved part – Part no 52057793 and BUMPER, FRT S/ABS
UPR (LOWER) (Improved part – Part no 92272819) and other damaged part as necessary.
The improved spring must be installed/replaced for only Trailblazer built during SORP – April
2013.
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 through the GM GlobalConnect Recall Reports, or sent directly to export
dealers. Dealers will not have a report available if they have no involved vehicles currently
assigned.
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.

Copyright 2014 General Motors. All Rights Reserved .

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May 2014

Bulletin No.: 14041

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.
Required parts for the affected VINs - Phase II (GFAN A140041)
Item
INSULATOR, FRT SPR UPR
(Improved part); Supplier BASF for phase II

BUMPER, FRT S/ABS UPR ( (LOWER)
(Improved part)

SPRING, FRT(3.6I Gasoline AT 2WD – 5
pass)

SPRING, FRT(3.6I Gasoline AT/MT 4WD full,
2.5D 2WD – 7 pass)

SPRING, FRT(2.8I Diesel AT/MT 4WD full – 7

Part No

Quantity
per unit

52057793

2

92272819

2

94751368

2

94751369

2

94724002

pass)

2

Remark
Replace all VINs
Replace all VINs
The improved
spring must be
installed/Replace
d for Trailblazer
built during
SORP – April
2013

Part information – Replace if damaged
Item

Part No

Quantity
per unit

MOUNT, FRT S/ABS UPR
(W/O INSULATOR, FRT SPR UPR 92272820)

52066552

2

NUT, FRT S/ABS

94708486

2

BUMPER, FRT S/ABS UPR ( (UPPER)

94708484

2

SHER, FRT S/ABS

94708483

2

WASHER, FRT S/ABS (UPR)

94708482

2

Based on
vehicle options

2

94708481

2

ABSORBER, FRT SHK
WASHER, FRT S/ABS UPR BRKT

Remark
Replace if
damaged
Replace if
damaged
Replace if
damaged
Replace if worn
more than 1mm
Replace if worn
more than 1mm
Replace if worn
more than 1mm
Replace if
damaged

Reference:
P/N 94708478: Top Mount Bracket with INSULATOR, FRT SPR UPR Old part number
P/N 52066552: Top Mount Bracket without INSULATOR, FRT SPR UPR New Part number

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May 2014

Bulletin No.: 14041

Not required for this field action

SERVICE PROCEDURE
1. Check the Customer VIN with the affected VIN list in order to replace parts based on the
recommended instruction.
2. Identify and/or confirm that the complaint noise is a squeaking noise from the front
suspension while driving.
3. Remove both front struts (even if there is only a noise from one side).

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May 2014

Bulletin No.: 14041

4. Before removing the top mount bracket (refer figure 1, item 4), place alignment marks on the
top mount bracket and spring using the outboard mounting bolt on the strut top bracket as a
reference. Mark the bottom of the spring to shock absorber as well. These marks should all be
aligned as shown in figure 2 and 3.
Warning: Follow ALL procedures for Removal found in SI. Spring is under tension and could cause injury if not
Removed in accordance with all instructions.

5. Remove the top mount plate. Ensure SI procedures are followed as the spring is under
tension and injury could occur if incorrectly disassembled.
6. Refer to figure 1 - the lower bush (9) will be replaced as well as the spring seat insulator (not
shown in figure 1). In addition, inspect the top mount bracket (4), cup washer (7), upper bush
(8), and shocker absorber rod (1) for damage. Follow these guidelines to determine if these
parts should be replaced:
- Place a straight edge along the shocker absorber rod as shown in figure 4.
- Measure the depth of wear on the shaft. If the wear is greater than 1mm, replace the shock
absorber.
- Inspect the steel washer (silver) that is pressed into the centre of the top mount bracket. If the
washer has worn through to the black steel mount bracket, then replace the top mount bracket,
refer figure 5.
- Inspect the upper bush (8), if the bush is out of shape or is damaged, replace the bush. In
most cases it is expected that the upper bush can be reused. Do not replace it unless
necessary.
- Inspect the cup washer (7) for distortion or other damage. Replace only if required.
Figure 4 — Measure Gap between Straight Edge and Shock Rod

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Bulletin No.: 14041

Figure 5 — Check if Silver Washer Has Worn Through
7. Install the revised spring seat insulator (52057793) to the top of the spring. The revised
insulator has a step or recess in it for the end spring coil to sit in. Ensure the spring sits fully
into the step/recess, refer figure 6 & 7.
Phase II :

8. Install the revised top mount lower bush part number 92272819 to the strut top bracket.
Ensure the inner lip of the bush is not pinched or folded when installing. Refer figure 8.

Figure 8
9. Reassemble the strut assemblies following SI procedures. Ensure the new spring is installed
according to vehicle specification; SPRING, FRT (3.6I Gasoline AT 2WD – 5 pass), SPRING,
FRT (3.6I Gasoline AT/MT 4WD full, 2.5D 2WD – 7 pass), SPRING, FRT (2.8I Diesel AT/MT
4WD full – 7 pass).
10. Test and confirm the noise is eliminated.

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Bulletin No.: 14041

WARRANTY INFORMATION
Submit a transaction using the table below.
Labour
code

Description

Labour
Time

9100381

A140041 31UX C Front Strut Noise_Inspection

0.1

9100380

A140041 31UX C Front Strut Noise MY12-13 Replace
Insulator (White Color), Lower Bushing, New Coil
Spring and others (If damaged)

1.6

*In case of customer did the modification on a shock absorber or replace a new shock absorber,
Labour operation code 9100381 will be applied for this case to close a job card.
All claims related to this activity will need to be submitted to GWM and GMTH within
September, 2016.
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 contact affected vehicle owners for them to bring their vehicles into service
centers to have this issue corrected at no charge to customers, regardless of mileage, age of
vehicle, or ownership.
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.
In summary, whenever a vehicle subject to this program enters your vehicle inventory, or is in
your facility for service, you must take the steps necessary to be sure the program correction
has been made before selling or releasing the vehicle.

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May 2014

Bulletin No.: 14041

DD MM 2014

Dear Chevrolet Customer,
This notice is sent to inform you that Chevrolet is conducting a customer satisfaction program
on certain MY 2012/2013 Chevrolet Trailblazer vehicles.
We have learned that on some involved vehicles, a squeaking or creaking noise may be heard
from the front suspension during driving.
Your satisfaction is very important to us. We therefore, would like to announce this program to
prevent this condition or, if it has occurred, to fix it.
According to our records, you own a vehicle which is subjected to this customer satisfaction
program. We hereby request you to visit your nearby authorized dealer and/or service center to
have your vehicle immediately inspected for the Front shock absorber condition and correction.
Please contact your authorized dealer and/or service center to schedule an appointment for this
program. Service instructions have already been sent to your authorized dealer and/or service
center and this service can be completed in 2 hours under service appointment.
If you have any questions or concerns, please feel free to contact your Chevrolet Customer
Relations Department at ------------------------------------------.

We apologize for inconvenience.

Sincerely,
[Put you company name]

____________________________________________________________________________
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 knowhow 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.

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May 2014

Bulletin No.: 14041