SERVICE PROCEDURE
18520
January, 2019
SUBJECT:

SAFETY RECALL
Brake Pressure Switch on certain IC Bus® CE
Series school bus models built 04 December 2017
thru 29 March 2018 with feature code 0004JNU
(Automatic; Hydraulic Brake System).

DEFECT DESCRIPTION
The brake pressure switch on these buses may become stuck, which results in a
false fault code and brake warning light. There is no direct safety consequence
because the brake system continues to function normally. However, in certain
situations, a brake warning light on a school bus that is carrying students may
require the driver to immediately pull over and transfer students to another bus
which could cause hazards with students near the roadway for an indeterminate
amount of time.

MODELS INVOLVED
This safety recall involves certain CE school bus models built 04 December 2017
thru 29 March 2018 with feature code 0004JNU (Automatic; Hydraulic Brake
System).

ELIGIBILITY
This procedure applies ONLY to vehicles marked in the International® Service
PortalSM with safety recall 18520. Also complete any other open campaigns listed
on the Service Portal at this time.

PARTS INFORMATION
Part Number

Part Description

4052584C1

SWITCH, BRAKE PRESSURE

Quantity
1

VEHICLE RECALL 18520
© 2019 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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SERVICE PROCEDURE
GOVERNMENT REGULATION: Engine fluid (oil, fuel, and coolant) may be a
hazard to human health and the environment. Handle all fluid and other
contaminated materials (such as filters and rags) in accordance with
applicable State and Federal regulations. Recycle or dispose of engine
fluids, filters, and other contaminated materials according to applicable
State and Federal regulations.
WARNING! To prevent personal injury, and / or death, or damage to
property, park the vehicle on hard flat surface, turn the engine off, set the
parking brake, and attach chocks in front of and behind the wheels to
prevent the vehicle from moving in either direction.
WARNING! To prevent personal injury, and / or death, or damage to
property, if the vehicle must be raised, do not work under the vehicle
supported only by jacks. Jacks can slip or fall over.
WARNING! To prevent personal injury and / or death, or damage to
property, always wear safe eye protection when performing vehicle
maintenance.
WARNING! To prevent personal injury, and / or death, or damage to
property, allow engine / vehicle components to cool before servicing.
WARNING! To prevent personal injury, and / or death, or damage to
property, keep flames, sparks, or other heat sources away from the vehicle
and do not smoke while servicing the vehicle’s batteries. Batteries expel
gases which may cause an explosion resulting in personal injury/death, or
damage to property, avoid contact with any heat sources.
WARNING! To prevent personal injury, and / or death, or damage to
property, remove the ground cable from the negative terminal of the battery
box before disconnecting any electrical components. Always connect the
ground cable last.
1. Park vehicle on flat surface.
2. Shift transmission to Park or Neutral and set parking brake.
3. Turn vehicle ignition to Key OFF position.
VEHICLE RECALL 18520
© 2019 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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4. Install wheel chocks.
5. Unlatch and open hood.

Figure 1. Master Cylinder Assembly
1. Master cylinder assembly
2. Brake pressure switch

6. Locate brake pressure switch (Figure 1, Item 2) on master cylinder
assembly (Figure 1, Item 1).

VEHICLE RECALL 18520
© 2019 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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Figure 2. Brake Pressure Switch
1. Lot number location
7. Inspect brake pressure switch for suspect lot number 25717 (Figure 2,
Item 1).
a. If brake pressure switch does not have suspect lot number 25717,
proceed to Step 12.
b. If brake pressure switch does have suspect lot number 25717,
continue with Step 8.
NOTE: Make sure the replacement brake pressure switch is at hand
and ready to install before removing the suspect brake pressure
switch. When replacing the brake pressure switch, it is not necessary
to bleed the brake system.
8. Disconnect brake pressure switch connector.
9. Remove brake pressure switch.
10. Install new brake pressure switch. Tighten to 34 - 37 lb-ft (46 - 50 N•m).
11. Reconnect brake pressure switch connector.
12. Close and latch hood.
13. Remove wheel chocks.

END OF SERVICE PROCEDURE

VEHICLE RECALL 18520
© 2019 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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LABOR INFORMATION
Operation Number

A40-18520-1
A40-18520-2

Description

Inspect Brake Pressure Switch Only
Inspect and Replace Brake Pressure
Switch

Time

0.3 hr
0.4 hr

CAMPAIGN IDENTIFICATION LABEL
Each vehicle corrected in accordance with this
campaign must be marked with a CTS-1075
Campaign Identification Label.
Complete the label and attach on a clean surface
next to the vehicle identification number (VIN) plate.

ADMINISTRATIVE / DEALER RESPONSIBILITIES
WARRANTY CLAIMS
Warranty claim expense is to be charged to Warranty. Claims are to be
submitted in the normal manner, making reference to Safety Recall 18520.
Section 7 of the Warranty Policy and Procedures Manual contains further
information related to the submission and processing of AFC / Recall claims.
As with all claim submissions, items acquired locally must be submitted in the
“Other Charges” tab. The cost of any bulk items (such as a bag of cable tie
straps, roll of wire, barrel of oil, or tube of silicone) should be prorated for the
cost of the individual pieces / amount used during each repair.

VEHICLE RECALL 18520
© 2019 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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UNITED STATES AND POSSESSIONS
The National Traffic and Motor Vehicle Safety Act, as amended, provides that
each vehicle that is subject to a vehicle recall campaign must be adequately
repaired within a reasonable time after the owner has tendered it for repair. A
failure to adequately repair within 60 days after a tender of a vehicle is prima
facie evidence of failure to repair within a reasonable time. If the condition is not
adequately repaired within 60 days, the owner may be entitled to replacement
with an identical or reasonable equivalent vehicle at no charge, or to a refund of
the purchase price less a reasonable allowance for depreciation.
Dealers must correct all vehicles subject to this campaign at no charge to the
owner, regardless of mileage, age of vehicle, or ownership, from this time
forward.
Dealers should proceed immediately to make necessary correction to units in
inventory. All inventory vehicles subject to this recall campaign must be
corrected prior to sale, transfer or delivery. If vehicles have been sold or
transferred and you are in receipt of Customer Notification Letters and
Authorization for Recall Service cards for those vehicles, the transfer location or
customer must be notified immediately from your dealer location.

VEHICLE RECALL 18520
© 2019 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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Dealers must make every effort to promptly schedule an appointment with each
owner to repair his or her vehicle as soon as possible. However, consistent with
the customer notification, dealers are expected to complete the repairs on the
mutually agreed upon service date.
Dealers involved in the recall process will be furnished a listing of owner names
and addresses to enable them to follow up with owners and have the vehicles
corrected. Use of this listing must be limited to this campaign because the list
may contain information obtained from state motor vehicle registration records,
and the use of such motor vehicle registration data for purposes other than this
campaign is a violation of law in several states.
CANADA
Dealers must correct all vehicles subject to this campaign at no charge to the
owner, regardless of mileage, age of vehicle, or ownership, from this time
forward.
Dealers should proceed immediately to make necessary correction to units in
inventory. All inventory vehicles subject to this recall campaign must be
corrected prior to sale, transfer or delivery. If vehicles have been sold or
transferred and you are in receipt of Customer Notification Letters and
Authorization for Recall Service cards for those vehicles, the transfer location or
customer must be notified immediately from your dealer location.
Dealers must make every effort to promptly schedule an appointment with each
owner to repair his or her vehicle as soon as possible. However, consistent with
the customer notification, dealers are expected to complete the repairs on the
mutually agreed upon service date.
Dealers involved in the recall process will be furnished a listing of owner names
and addresses to enable them to follow up with owners and have the vehicles
corrected. Use of this listing must be limited to this campaign because the list
may contain information obtained from state motor vehicle registration records,
and the use of such motor vehicle registration data for purposes other than this
campaign is a violation of law in several states.

VEHICLE RECALL 18520
© 2019 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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EXPORT
Export Distributors should proceed immediately to make necessary correction to
units in inventory. All inventory vehicles subject to this recall campaign must be
corrected prior to sale, transfer or delivery. If vehicles have been sold or
transferred and you are in receipt of Customer Notification Letters and
Authorization for Recall Service cards for those vehicles, the transfer location or
customer must be notified immediately from your distributor location.
Export Distributors are to submit warranty claims in the usual manner making
reference to this recall number.
Export Distributors are expected to provide full cooperation and follow-up with
respect to this important subject matter. If you have any questions or need
further assistance, please contact the Regional Service Manager at your regional
office.

NAVISTAR, INC.

VEHICLE RECALL 18520
© 2019 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

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