NHTSA ID Number: 11006708
Manufacturer Communication Number: 20-NA-104
TSB/Document Date: 2024-08-30
Summary
This service bulletin provides information on where to look when the vehicle is experiencing the conditions of Malfunction Indicator Lamp Illuminated– 5V Reference, Reduced Power, Extended Crank, Body Harness to Fuel Tank Damage due to incorrect tire size.
Bulletin No.: 20-NA-104
Service Bulletin
Date: August, 2024
INFORMATION
Subject:
Brand:
Malfunction Indicator Lamp (MIL) Illuminated - 5V Reference, Reduced
Power, Extended Crank, Stabilitrak Message on, Body Harness to Fuel
Tank Damage
Model:
Model Year:
from
Camaro SS,
and SS 1LE
(RPO A1Y)
2016
Camaro ZL1
2017
Camaro ZL1
1LE (RPO
A1Z)
2018
VIN:
to
2024
from
to
—
Engine:
All
All
Involved Region or Country
North America, Argentina, Brazil, Bolivia, Chile, Colombia, Ecuador, Paraguay, Peru, Uruguay, Europe, Russia, Middle East, Israel, Japan, GM Korea Company, China, Taiwan
Condition
Some customers may comment on a Malfunction Indicator Lamp illuminated, extended
crank or reduced power.
Cause
5599085
Copyright 2024 General Motors
. All Rights Reserved.
Page 2
August, 2024
Bulletin No.: 20-NA-104
6164920
This concern may be caused by a damaged body to fuel pump harness and/or the use of
oversized tires that may damage the Chassis module to fuel pump connector X350.
The harness damage may also cause an intermittent short during heavy acceleration if
vehicle is not exhibiting the other concerns. Upon inspection, the F35RA fuse in the rear
fuse block may also be blown.
Correction
5599088
Inspect the left rear wheelhouse liner for a rub through condition due to incorrect tire size.
Service Procedure
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict
between the procedures set forth in this bulletin
and the laws that apply to your dealership, you
must follow those applicable laws.
If you encounter a vehicle with the above concern,
inspect the left rear wheelhouse liner for a rub through
condition.
• If the concern is caused by a rub through condition
and the vehicle is not equipped with original
equipment (OE) tires, then advise the customer of
the importance to use the same tire size and
manufacturer as the vehicle was originally
equipped with. The repair is not covered as a
warranty claim.
Bulletin No.: 20-NA-104
August, 2024
Important: The same tire size, but a different manufacturer, could result in up to 10 mm difference in actual
tire size.
• If the concern is caused by a rub through condition
and the vehicle is equipped with the OE tires,
please submit a field product report, and include
pictures and tire information.
Page 3
ZL1 1LE
Location
Tire Size
Description
Front
P305/30ZR19
Goodyear Eagle F1 Supercar 3R
Rear
P325/30ZR19
Goodyear Eagle F1 Supercar 3R
Tire Information
SS 1LE / ZL1
SS (for Non 1LE Vehicles)
Location
Tire Size
Description
Location
Tire Size
Description
Front
P285/30ZR20
Goodyear Eagle F1 Supercar
Front
P245/40ZR20
Goodyear Eagle F1 Asymmetric 3 RoF
Rear
P305/30ZR20
Goodyear Eagle F1 Supercar
Rear
P275/35ZR20
Goodyear Eagle F1 Asymmetric 3 RoF
Version
5
Modified
Released May 12, 2020
Revised October 14, 2020 – Added the 2021 Model Year and updated the Involved
Region or Country section.
Revised June 24, 2022 – Added the 2022–2023 Model Years and the Camaro SS model.
Revised October 10, 2022 – Updated the Subject, added the 2016 Model Year, updated
the Cause section, added the first Important statement under Service Procedure and
added the last table under Tire Information.
Revised August 07, 2024 – Added the 2024 Model Year.
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 equipment, tools, 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 GM dealer for information on whether your vehicle may benefit from the
information.
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TSB/Document ID: 20-NA-104
Replacement Service Bulletin Number:
MFR Communication Date: 2024-08-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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