BULLETIN NUMBER:
WB13-X-002G

IMPORTANT SERVICE
INFORMATION FOR:
✓ SERVICE MANAGER
✓ SERVICE ADVISOR
✓ PARTS DEPARTMENT
✓ WARRANTY PERSONNEL

ISSUE DATE:
JULY 2023
GROUP:
MISCELLANEOUS

ISUZU TIRE WARRANTY – POLICIES AND PROCEDURES
AFFECTED VEHICLES
• 2018-2024MY Isuzu F-Series Vehicles
• 2014-2024MY N-Series Isuzu Vehicles
This bulletin supersedes bulletin WB13-X-002F. This bulletin is being updated to
revise Model Years and content. Please discard bulletin WB13-X-002F.
INFORMATION
Isuzu is providing this bulletin to outline Isuzu’s policy and procedures for Isuzu vehicles
with Tire Warranty Coverage.
NOTE: After the Isuzu Tire Warranty expires, additional coverage may be available
from the tire manufacturer. Refer to the tire manufacturer’s warranty booklet that
was provided with the vehicle at the time of sale.
TIRE WARRANTY
WHAT IS COVERED
For the “Isuzu Tire Warranty Coverage Period”, namely, two (2) years or 24,000 miles
(whichever occurs first): If any tire originally equipped on the truck is defective (please
see below what is not covered), the tire will be repaired or replaced by an authorized tire
dealer.
WHAT IS NOT COVERED
The Tire Warranty does not cover tire wear or damage caused by crashes, road hazards,
lack of maintenance, improper use of tire chains, alterations, overloading or vandalism.
POLICY
TIRE SERIAL NUMBER
All tires have serial numbers, which are recorded when installed onto a vehicle during
production. In this manner, every tire can be matched to the Vehicle Identification Number
(VIN). Only tire serial numbers associated with a VIN at the time of production are
considered original equipment.

This warranty coverage is for the tires that are installed as original equipment on the
original VIN. If any tire is moved from one vehicle to another, it is considered an alteration
and is no longer covered under the Tire Warranty.

DETERMINING A DEFECT
Isuzu dealers are not authorized to determine if a tire has failed as the result of a defect.
Only an authorized tire manufacturer representative can make that assessment. The tire
manufacturer representative must inspect the suspected defective tire(s) to make the
determination. If the tire manufacturer representative determines that a tire is not
defective, it will not be covered under the Isuzu Tire Warranty. Isuzu Commercial Truck
of America, Inc. (Isuzu) will only honor warranty claims for tires that have been determined
defective directly by the tire manufacturer representative.
Dealers are required to follow the procedure set forth below as a prerequisite for possible
coverage under the Tire Warranty. Failure to comply with this procedure will result in
claim denial and/or chargeback.
PROCEDURE
When a tire is suspected to be defective, adhere to the following procedure.
1. Determine the original equipment (OE) tire serial numbers as displayed on the
Isuzu Vehicle Information System (IVIS). (See Figure 1.)

Figure 1 – Location of OE tire serial numbers in IVIS

2. Inform the customer that warranty coverage will not apply unless the tire is deemed
defective by an authorized tire manufacturer representative. If it is determined not
to be a defect, all costs will be the responsibility of the customer.
3. Determine the manufacturer and serial number(s) of the tire(s) installed onto the
vehicle.
a. Bridgestone, Yokohama, Continental, Dunlop, or Goodyear
b. Serial Number (see Figure 2)

Figure 2 – Serial Number Location

4. Confirm that the OE serial number(s) match the affected tire(s) installed on the
vehicle.
5. Sublet the vehicle to the local authorized tire manufacturer facility for tire
inspection.
a. For the location closest to your dealer, please use the store locator on the
applicable tire manufacturer’s website.
i. www.yokohamatire.com
ii. www.bridgestonetire.com
iii. www.continentaltire.com
iv. www.goodyeartrucktires.com (for Goodyear and Dunlop tires)
6. Receive the inspection results from the tire manufacturer representative. Be sure
that the inspection results include the tire serial number.
a. If the tire manufacturer representative determines there is a defect, some
or all of the costs for the tire repair will be absorbed by the tire manufacturer.
Tire manufacturers have varying policies regarding prorated reimbursement
based on remaining useful tire life, which may affect the level of coverage
from the tire manufacturer. Assuming the vehicle is within the “Isuzu Tire
Warranty Coverage Period,” any reasonable balance for the replacement of

the tire may be submitted to Isuzu for reimbursement as a sublet. There
should be no cost to the customer.
b. If the failure is determined NOT to have been caused by a defect, any
inspection costs and repair costs will be the responsibility of the customer.
CLAIM SUBMISSION
For vehicles covered under warranty with a confirmed defect as discussed above, dealers
should use the information below to submit a claim for any costs not covered by the tire
manufacturer.
It is important to keep the original sublet bill (including tire serial numbers) with the claim
paperwork, as it may be required for claim authorization. Dealers can add up to 0.3 hours
of labor for administration of this tire warranty sublet.
Labor Operation

Description

Labor Time

E0425

Tire Warranty

0.3