Safety Recall N202303150 Chassis Wiring Harness May Contact Leaf Spring Bracket – 2018-2020 Chevrolet 6500XD

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Product Safety Recall
N202303150 Chassis Harness Improperly Routed
Copyright 2020 General Motors. All Rights Reserved. Page 1 of 10
Release Date: May 2020 Revision: 01
Revision Description: This bulletin has been revised to include the customer letter. Please discard all previous
copies of bulletin N202303150.
Attention: It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor
vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or
noncompliance is remedied.
Vehicles involved in this recall were placed on stop delivery April 03, 2020. Once the service procedure
contained in this bulletin has been performed on the vehicle, the vehicle is released from stop delivery
and the vehicle 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.
ONLY Chevrolet Medium Duty dealers can complete this recall repair.
Make Model
Model Year
From To RPO Description
Chevrolet 6500XD Low Cab Forward 2018 2020
Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management
system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition Isuzu Motors Limited has decided that a defect, which relates to motor vehicle safety, exists in certain
2018-2020 model year 6500XD Low Cab Forward vehicles. The chassis wire harness outside the relay
box was improperly routed. As routed, it can contact the suspension’s leaf spring hanger bracket, causing
the harness to chafe and the wires to be damaged. Depending on which of the wires within the harness
are affected, different systems could be impacted, yielding varying possible results including the
possibility of a vehicle stall and/or reduced functionality of the ABS brake system. These results could
increase the risk of a crash.
Correction Dealers will repair or replace the existing wire harness, as necessary, if it is damaged, and install
additional clamps to ensure the undamaged or repaired/replacement wire harness is secured away from
the hanger bracket.
Parts
Quantity Part Name Part No.
1 CLIP CHAS FRT 97780757
Note: Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which chassis clips to order.
Due to the small number of vehicles involved, (318), and due to limited initial parts availability, dealers are encouraged
not to order recall parts for use as shelf stock. Parts should only be ordered when inspection determines that it is
necessary to repair the engine harness.
Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts
to confirm RIM managed status. Parts may have quantity limiters in effect.
Warranty Information
Labor
Operation Description
Labor
Time
Trans.
Type
Net
Item
9104673
Inspect and Install Harness Hardware Kit
ADD: For Wire Repair
0.5*
0.1-1.0
ZFAT N/A
9105146
Customer Reimbursement Approved
– For USA and Canada dealers only
– For Export dealers only
N/A
0.2
ZFAT
**
9105147 Customer Reimbursement Denied – For USA dealers only N/A ZFAT ***
9105148 Floor Plan Reimbursement – NEW INVENTORY ONLY N/A ZFAT ****
9105149
Working Capital Assistance Program Reimbursement – USED
INVENTORY ONLY
N/A ZFAT *****
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
Page 2 of 10
Note: To avoid having to “H” route the customer reimbursement / floor plan / WCAP transaction for approval, it must be
submitted prior to the repair transaction.
* Includes 0.1 hours for administrative allowance.
** For USA and Canada: Submit the dollar amount reimbursed to the customer in Net/Reimbursement. Submit $20.00
administrative allowance in Net/Admin Allowance.
For Export: Submit the dollar amount reimbursed to the customer in Net/Reimbursement.
*** Submit $10.00 administrative allowance in Net/Admin Allowance.
Floor Plan Reimbursement – NEW INVENTORY ONLY
**** USA & Canada Only – For vehicles eligible for floor plan reimbursement, the amount should be submitted in Net
Item/Miscellaneous. This amount should represent the product of the vehicle’s average daily interest rate (see table
below) multiplied by the actual number of days the vehicle was in dealer inventory and not available for sale. This
reimbursement is limited to the number of days from the date of the stop delivery message April 03, 2020 to the date
the repair is completed, and the vehicle is ready for sale (not to exceed 45 days):
Vehicle
Floor Plan Reimbursement Amount
2020 6500XD Low Cab Forward $6.04
2019 6500XD Low Cab Forward $4.81
Working Capital Assistance Program (WCAP) Reimbursement – USED INVENTORY ONLY
Note: USA & Canada Only – To avoid having to “H” route the WCAP transaction for approval, it must be submitted prior
to the repair transaction.
Important: The WCAP ZSET transaction labor code, 9800050, provided in the dealer message sent on May 04,
2020, must have been submitted prior to the submittal of the ZFAT transaction labor code or the claim will reject.
***** USA & Canada Dealers Only – For vehicles eligible under the Working Capital Assistance Program, the amount
should be submitted in Net Item/Miscellaneous. This amount has been calculated to a daily value for the days that
the vehicle was in used dealer inventory and not available for sale. This reimbursement is limited to the number of
days from the date of the stop sale/stop delivery order April 03, 2020 to the date the inspection or repair closed the
recall bulletin. (not to exceed 45 days).
Vehicle Working Capital Assistance Reimbursement Amount
2020 6500XD Low Cab Forward $18.11
2019 6500XD Low Cab Forward $12.72
2018 6500XD Low Cab Forward $11.22
Service Procedure
1. Place the vehicle in park, apply the parking brake, and turn engine off.
2. Disconnect the negative (-) battery cable.
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
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5600807
3. Inspect the Harness for contact with the Left Front, Rear Leaf Spring Hanger Bracket. Figure 1 indicates where the
harness may contact the Bracket.
3.1. If the harness is not contacting the spring hanger and/or there is no sign of harness damage continue to Step 4.
5600808
(1) Upper clamp
(2) Lower clamp
(3) Spacer
(4) Bolts
(5) Nuts
4. Familiarize yourself with the parts of the Harness Relocation Kit shown above.
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
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5600809
5. Remove the bolt and nut holding the forward tab of the wiring harness bracket as shown above. Discard the bolt
and nut just removed.
5600810
6. Insert one of the bolts from the kit through the hole in the fuse box bracket as shown above. The threads of the bolt
should be facing outwards from the bracket. Place the Upper Clamp over the harness approximately two (2) inches
away from where the harness enters the fuse box. Firmly push upwards on the harness and slip the flat portion of
the Clamp over the bolt. (shown above.)
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
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5600811
7. Firmly push or pull upwards on the harness while squeezing the Upper Clamp together in order to slip the outer
hole of the clamp over the bolt. Turn a nut onto the bolt several turns by hand to hold clamp in place.
5600814
8. Insert the other bolt through the hole where the bolt was removed in Step 5. The threads should be facing
outwards.
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
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5600815
9. Slip the Spacer onto the bolt that was inserted in Step 8.
5600817
10. Place the Lower Clamp over the harness. Slip the Lower Clamp loop over the bolt, start a nut by hand several
turns, and lightly snug the nut. Lightly snap the ratcheting mechanism of the Lower Clamp onto the harness.
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
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5600818
11. Adjust the Upper Clamp position until the harness has at least 15mm of clearance from the spring hanger bracket
and bolt as shown (1). Position the Lower Clamp so that it is in line with the spring hanger bracket as shown. Hold
the Lower Clamp in place when the clearance and Clamp position are correct and snug the nut down with a ratchet
and socket.
12. Place a wrench on the head of each bolt while tightening. Torque both Clamp Nuts to 20 Nm (14 lb·ft).
13. Firmly press the Lower Clamp ratcheting mechanism closed so that the harness is held steady in the clamp.
14. Connect the negative (-) battery cable.
Dealer Responsibility – For USA & Export (USA States, Territories, and Possessions)
It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle
equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is
remedied.
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a recall of this type
must be adequately repaired within a reasonable time after the customer has tendered it for repair. A failure to repair
within sixty days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time. If the
condition is not adequately repaired within a reasonable time, the customer may be entitled to an identical or reasonably
equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation. To
avoid having to provide these burdensome remedies, every effort must be made to promptly schedule an appointment
with each customer and to repair their vehicle as soon as possible. In the recall notification letters, customers are told
how to contact the US National Highway Traffic Safety Administration if the recall is not completed within a reasonable
time.
Dealer Responsibility – All
All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers’ possession
and subject to this recall must be held and inspected/repaired per the service procedure of this bulletin before customers
take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealer-traded,
released to auction, used for demonstration, or any other purpose.
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System
(CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting
an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified
for sale within the CPOIS system, or once again be used in the CTP program.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of mileage, age of vehicle,
or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer
information indicated on the dealer 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
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
Page 8 of 10
bulletin for your use in contacting customers. Recall 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 field action enters your vehicle inventory you must take the steps
necessary to ensure the program correction has been made before selling the vehicle. In addition, for vehicles entering
your facility for service, you are required to ensure the customer is aware of the open field action and make every
reasonable effort to implement the program correction as set forth in this bulletin prior to releasing the vehicle.
Dealer Reports
For dealers with involved vehicles, a listing with involved vehicles has been prepared and will be provided to U.S. and
Canadian dealers through the GM GlobalConnect Recall Reports or sent directly to export dealers. 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 recall 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 recall.
Customer Notification
USA & Canada – General Motors will notify customers of this recall on their vehicle (see copy of customer letter included
with this bulletin).
Export – Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor
Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter.
Customer Reimbursement
Customer requests for reimbursement of previously paid repairs to correct the condition described in this bulletin are to
be submitted to the dealer prior to or by May 31, 2021. See General Motors Service Policies and Procedures Manual,
Product Field Action Customer Reimbursement Procedure (USA & Canada) or local Policies and Procedures, for details.
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
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
Page 9 of 10
IMPORTANT SAFETY RECALL
May 2020
This notice applies to your vehicle, VIN: _____________________________________
Dear General Motors Customer:
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.
Isuzu Motors Limited has decided that a defect which relates to motor vehicle safety exists in certain 2018-2020 model
year Chevrolet 6500XD Low Cab Forward vehicles. As a result, GM is conducting a safety recall. We apologize for this
inconvenience. However, we are concerned about your safety and continued satisfaction with our products.
I M P O R T A N T
• Your vehicle is involved in GM safety recall N202303150.
• Schedule an appointment with your GM dealer.
• This service will be performed for you at no charge.
Why is your vehicle
being recalled?
The chassis wire harness outside the relay box was improperly routed. As routed, it
can contact the suspension’s leaf spring hanger bracket, causing the harness to chafe
and the wires to be damaged. Depending on which of the wires within the harness are
affected, different systems could be impacted, yielding varying possible results
including the possibility of a vehicle stall and/or reduced functionality of the ABS brake
system. These results could increase the risk of a crash.
What will we do? Your GM dealer will repair or replace the existing wire harness, as necessary, if it is
damaged, and install additional clamps to ensure the undamaged or
repaired/replacement wire harness is secured away from the hanger bracket. This
service will be performed for you at no charge. Because of service scheduling
requirements, it is likely that your dealer will need your vehicle longer than the actual
time of approximately 1 hour and 35 minutes.
Did you already pay
for this repair?
Even though you may have previously had repairs for this condition, you will still need
to take your vehicle to your dealer for additional repairs. If you have already paid for
repairs for the recall condition, please complete the enclosed reimbursement form and
present it to your dealer with all required documents. Working with your dealer will
expedite your request, however, if this is not convenient, you may mail the completed
reimbursement form and all required documents to Reimbursement Department, PO
Box 33170, Detroit, MI 48232-5170. The completed form and required documents
must be presented to your dealer or received by the Reimbursement Department by
May 31, 2021, unless state law specifies a longer reimbursement period.
What should you
do?
You should contact your GM dealer to arrange a service appointment as soon as
possible.
Do you have
questions?
If you have questions or concerns that your dealer is unable to resolve, please contact
the appropriate Customer Assistance Center at the number listed below.
Division Number Text Telephones (TTY)
Puerto Rico – English 1-800-496-9992
Puerto Rico – Español 1-800-496-9993
Virgin Islands 1-800-496-9994
GM Medium Duty Truck 1-800-862-4389
If after contacting your dealer and the Customer Assistance Center, you are still not satisfied we have done our best to
remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National
Product Safety Recall
N202303150 Chassis Harness Improperly Routed
Page 10 of 10
Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC 20590, or call the toll-free
Vehicle Safety Hotline at 1.888.327.4236 (TTY 1.800.424.9153), or go to https://www.safercar.gov. The National
Highway Traffic Safety Administration Campaign ID Number for this recall is 20V195.
Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the
lessee within ten days.
Maryann L. Combs
Vice President
Global Vehicle Safety
Enclosure
GM Recall: N202303150

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GM CUSTOMER CARE AND AFTERSALES
DCS5383
URGENT – DISTRIBUTE IMMEDIATELY
Date: May 4, 2020
Subject: Upcoming Safety Recall N202303150
Chassis Wiring Harness May Contact Leaf Spring Bracket
Application for Used Vehicle Working Capital Assistance Program (WCAP)
Models: 2018-2020 Chevrolet 6500XD Low Cab Forward
To: All General Motors Medium Duty Dealers
On April 03, 2020, GM sent to all GM Medium Duty Dealers GlobalConnect Message GCUS-3-1800 regarding safety recall N202303150, Chassis Wiring Harness May Contact Leaf Spring Bracket.
The required repair to complete this recall is not yet available. Until further instructions are received, the involved vehicles that are in dealers’ possession (new or used vehicle inventory, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc.) must be held and cannot be delivered to customers, dealer-traded, released to auction, used for demonstration purposes or put to any other use.
This message is to inform dealers who have involved vehicles in their inventory that they can now apply for the used vehicle Working Capital Assistance Program (“WCAP”) for safety recall N202303150.
Before proceeding with the application process described below, dealers must verify vehicle eligibility based on the program terms and guidelines that were provided in GM GlobalConnect Message GCUS-9-9188 dated March 10, 2020. Applications submitted on ineligible vehicles are subject to chargeback of any incentives paid to the dealer under the WCAP. Because compensation and tracking requires visibility into dealers’ inventory, dealers must also have agreed to a Dealer Data Share agreement with GM in order to receive any compensation under this program.
To apply for the WCAP for safety recall N202303150, dealers must access the GM Global Warranty Management (GWM) system and submit a “ZSET” warranty transaction using the labor code provided below for each eligible vehicle. This zero dollar special transaction type is the dealer’s application for compensation and constitutes a representation from the dealer that the vehicle is eligible for WCAP assistance.
Note: Acceptance of the warranty transaction does not ensure vehicle eligibility or guarantee the provision of any assistance as defined by program terms and guidelines.
Labor
Code Description
Labor
Time
Trans
Code
9800050
Working Capital Assistance for Safety Recall
N202303150
N/A ZSET
To be eligible for the WCAP, a vehicle must be in dealer inventory at the time the related
field action bulletin is released. If a vehicle has been delivered, wholesaled or otherwise
disposed of prior to release of the bulletin, the vehicle is not eligible for assistance.
Additionally, recalled vehicles taken in on trade may be eligible for assistance if the dealer
immediately reports the vehicle in used vehicle inventory via its Dealer Management
System (DMS) and makes application through the GWM system.
To ensure that GM is receiving daily inventory information, which is necessary to process
payments and make eligibility determinations under the WCAP, the dealer’s vehicles must
be properly identified in the dealership’s DMS. A daily feed of this information is provided
to GM through the Dealer Data Share (DDS) agreement.
Beginning with the 1st quarter of 2019, all WCAP payments will be facilitated through the
Global Warranty Management (GWM) system. For each eligible vehicle, a qualifying
dealer will submit for WCAP vehicle enrollment with a “ZSET” transaction type and for
reimbursement with a “ZFAT” transaction type both through the GWM system. If
approved, a WCAP credit for that vehicle will be issued through the GWM system similar
to any other warranty credit. WCAP submission instructions and the required labor code
will also be provided in the appropriate field action bulletin. Each WCAP transaction being
credited will be clearly identified on the dealer’s daily credit memo.
In order to receive payment, a dealer must have timely reported the vehicle in used
vehicle inventory, retained the vehicle until the related field action bulletin is released, and
properly applied for the WCAP payment. The vehicle must also be otherwise eligible
under WCAP rules and guidelines.
GM reserves the right to amend, modify, terminate, or cancel this program at any time in
its sole discretion.
END OF MESSAGE
GM CUSTOMER CARE AND AFTERSALES

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GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5421
URGENT – DISTRIBUTE IMMEDIATELY
Date: June 4, 2020
Subject: N202303150-01 – Safety Recall
Chassis Harness Improperly Routed
Customer Letter Added
Models: 2018-2020 Chevrolet 6500XD Low Cab Forward
To: All General Motors Medium Duty Dealers
Bulletin N202303150-01 has been revised to include a copy of the customer notification letter. Please discard all copies of bulletin N202303150.
Customer Letter Mailing
The customer letter mailed May 27, 2020.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

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GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5371
URGENT – DISTRIBUTE IMMEDIATELY
Date: April 3, 2020
Subject: Stop Delivery Order for Upcoming Safety Recall N202303150
Chassis Wiring Harness May Contact Leaf Spring Bracket
Models: 2018-2020 Chevrolet 6500XD Low Cab Forward
To: All General Motors Medium Duty Dealers
STOP DELIVERY ORDER
Effective immediately, stop the delivery of certain 2018-2020 Chevrolet 6500XD Low Cab Forward Medium Duty vehicles.
Until further instructions are received, involved vehicles that are in dealers’ possession (new or used vehicle inventory) must be held and not delivered to customers, dealer-traded, released to auction, used for demonstration purposes, or any other dealer use. All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System (CPOIS) will be de-certified.
A list of involved vehicles that have been identified as being in dealer new vehicle inventory is attached to this message. It is sorted by dealer Business Associate Code (BAC) for easy reference. Your dealership’s BAC will not be listed if none of the involved vehicles are currently in your new vehicle inventory. A file identifying involved vehicles in dealer used inventory will be published in GM GlobalConnect, under the Service tab in Field Action Inventory Reports.
Question and Answer Document (Q&A)
Attached to this message you will find a document that addresses the ten most likely questions customers may have regarding this Safety Recall. Please use this information as an aid to confidently answer customer concerns.
Until the recall bulletin is released, the Investigate Vehicle History (IVH) screen in the Global Warranty Management (GWM) system will display “N/A” under Release Date and “Incomplete – Remedy not yet available” under Status. This means the required repair is not yet available and dealers should not attempt to perform any repairs.
We are working with the supplier to obtain the required parts as quickly as
possible. When a sufficient quantity of parts is available, the recall bulletin will be
released, and dealers can begin repairing vehicles.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

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GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5395
URGENT – DISTRIBUTE IMMEDIATELY
Date: May 15, 2020
Subject: N202303150 – Safety Recall
Chassis Harness Improperly Routed
Models: 2018-2020 Chevrolet 6500XD Low Cab Forward
To: All General Motors Medium Duty Dealers
General Motors is releasing Safety Recall N202303150 today. The total number of U.S. vehicles involved is approximately 318. Please see the attached bulletin for details.
Vehicles involved in this recall were placed on stop delivery April 03, 2020. Once the service procedure contained in the bulletin has been performed on the vehicle, the vehicle is released from stop delivery and the vehicle can be delivered to the customer.
Question and Answer Document (Q&A)
Attached to this message you will find a document that addresses the ten most likely questions customers may have regarding this Safety Recall. Please use this information as an aid to confidently answer customer concerns.
Working Capital Assistance Program (WCAP) Eligibility
Vehicles which were in dealer inventory at the time of this bulletin release were eligible for WCA. Please refer to the attached bulletin and GlobalConnect Message GCUS-9-7345 for additional information.
Customer Letter Mailing
The customer letter mailing will begin on May 27, 2020.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will be updated May 16, 2020 or sooner. A list of involved vehicles in dealer new inventory is attached to this message. Please hold all warranty transactions until IVH has been updated.
END OF MESSAGE
GLOBAL SAFETY FIELD INVESTIGATIONS

SEOCONTENT-END