SERVICE PROCEDURE

21506
AUGUST 2021

SUBJECT: NONCOMPLIANCE RECALL
Emergency Exit Configuration on certain 2014 IC
Bus® CE Series school bus models built 19
December 2012 thru 22 July 2013, 2019 IC Bus® CE
Series school bus models built 14 May 2018 thru 23
July 2018, and 2022 IC Bus® CE Series school bus
models built 13 January 2021 thru 27 January 2021.

DEFECT DESCRIPTION

Certain school buses may not conform to Federal Motor Vehicle Safety
Standard (FMVSS) 217 — the exit opening configuration may not meet the
minimum exit opening criteria. A bus that does not conform to all the
requirements of FMVSS 217, in the event of an emergency, may hinder the
quick exit of the bus and increase the risk of personal injury.

MODELS INVOLVED

This safety recall involves certain 2014 IC Bus® CE Series school bus models built
19 December 2012 thru 22 July 2013, 2019 IC Bus® CE Series school bus models
built 14 May 2018 thru 23 July 2018, and 2022 IC Bus® CE Series school bus
models built 13 January 2021 thru 27 January 2021.

ELIGIBILITY

This procedure applies ONLY to vehicles marked in the International® Service
Portal™ with safety recall 21506. Also complete any other open campaigns listed
on the Service Portal at this time.

PARTS INFORMATION

NOTE: All buses require a right and a left emergency exit window to be
added. Refer to the parts information tables located at the end of this
letter for the correct parts / numbers. The tables are organized by VIN
number.

VEHICLE RECALL 21506
© 2021 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 1
SERVICE PROCEDURE

WARNING! To prevent personal injury and / or death, or damage to property,
park vehicle on hard flat surface, turn the engine off, set the parking brake

and install wheel chocks to prevent the vehicle from moving in both
directions.

WARNING! To prevent personal injury and / or death, always wear safe eye
protection when performing vehicle maintenance.

WARNING! To prevent personal injury and / or death, keep flames or sparks

away from vehicle and do not smoke while servicing the vehicle’s batteries.
batteries expel explosive gases.

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.

4. Install wheel chocks.

Emergency Window Installation

NOTE: For new window location, buses currently built with emergency
windows, install the two new windows in second row of seats from
front of the bus.

NOTE: For buses not built with emergency windows, install two new
windows toward center of bus.

5. Remove wiring panel above window to be replaced.

6. Starting on driver-side of bus, remove current split sash window in
location noted above. Refer to appropriate Service Manual for removing
window.

7. Remove sealant from bus body window frame.

8. Install butyl tape to bus body window frame, route wiring harness of the
window through the drip rail and through the overhead lining and then
install window (Figure 3, Item 3).

VEHICLE RECALL 21506
© 2021 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 2
NOTE: After window installation, open and close window to make sure
it operates properly.

9. Repeat steps 5 thru 8 for right-side of bus.

NOTE: Steps 10 through 25: Instructions for buses built with ONE SET
of emergency exit windows.

NOTE: See Steps 26 through 38 for buses NOT built with emergency
exit windows.

10. Remove wiring panels located above first passenger window on driver-
side to the newly installed window in order to access push out window
splice connector located above first window.

11. Install kickout window overlay harness from push out window splice
pack to newly installed emergency window.

0000471546

FIGURE 1. Splice Connectors
1. Splice connector 10421 / 10713
NOTE: Figure 1 shows splice connector 10421 / 10713.

12. Locate push out splice connector located on the driver-side above first

window 10421 (Figure 1, Item 1) and on the right-side above last window
10713 (Figure 1, Item 1).

VEHICLE RECALL 21506
© 2021 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 3
(10421)
(SIGNAL SIDE)

3 0000471547
Figure 2. Window Switch Connector Half / Cavity H / Cavity C

1. 10421 window switch connector half
2. Cavity C / 126-E
3. Cavity H / 126-GD

13. Install wire 126-E into cavity C (Figure 2, Item 2) of splice connector
10421.

14. Install wire 126-GD into cavity H (Figure 2, Item 3) of splice connector
10421.

VEHICLE RECALL 21506
© 2021 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.

0000471548

Figure 3. Overlay Harness and Emergency Window Harness

1. Overlay harness
2. Emergency window harness
3. Harness routing through drip rail and overhead lining

15. Connect end of overlay harness (Figure 3, Item 1) to newly installed
emergency window harness (Figure 3, Item 2).

16. Remove wiring panels located above windows on right-side of bus from
newly installed window to access push out window splice connector
above last right-side window.

17. Install push-out window overlay harness from push-out window splice
pack to newly installed emergency window.

18. Locate push out splice connector 10713 (Figure 1, Item 1).

VEHICLE RECALL 21506
© 2021 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 5

(10713)
(SIGNAL SID

A A

0000471549

Figure 4. Window Switch Connector Half / Cavity B / Cavity H

1. 10713 window switch connector half
2. Cavity B / 126-C
3. Cavity H / 126-GC

19. Install wire 126-C into cavity B (Figure 4, Item 2) of splice connector
10713.

20. Install wire 126-GC into cavity H (Figure 4, Item 3) of splice connector
10713.

21. Connect end of overlay harness (Figure 3, Item 1) to newly installed
emergency window harness (Figure 3, Item 2).

22. Before installing wiring panels, turn on ignition switch and open each
emergency window to make sure alarm operates properly. Turn ignition
switch off when alarm check is completed.

23. Secure overlay harnesses to main harnesses with cable tie straps.

24. Install wiring panels on driver-side and right-side of bus.

25. Proceed to Step 39.

Steps 26 through 38: Instructions for buses NOT built with emergency

windows.

26. Remove wiring panels from entire length of driver-side of bus.

VEHICLE RECALL 21506

© 2021 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.
27. Remove wiring panels on right-side of bus from rear cap to newly
installed window.

\10204)

a ee

%

2

0000471550
Figure 5. Alarm Switch Ground Connector Half / Cavity E

1. 10204 alarm switch ground connector half
2. Cavity E / 126

0000471551

Figure 6. Electrical Panel Connector / Cavity C6

1. 10400A electrical panel connector
2. Cavity C6 / 126

28. Install overlay harness at electrical panel.

a. Install one end of wire number 126 (18 GY) into cavity E (Figure 5,
Item 2) of Alarm Switch Connector 10204 (Figure 5, Item 1).

b. Install opposite end of wire number 126 (18 GY) into cavity C6 (Figure
6, Item 2) of Electrical Panel connector 10400A (Figure 6, Item 1).

VEHICLE RECALL 21506
© 2021 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners. 7
(10421)
(SIGNAL SIDE/

/126E
16 GY

4 126K

| 16GY

B +1268
X18 GY

(pinnae
126-GA

“as6y-] ° 4
> L126-61_

{16 WH
2
4 LDX6-6D_
16 WY

REAR CAP/L 5
BODY
(10406)

——

1268
col -

=e

1 L__

0000471553

Figure 7. Splice Kick Out Window Connector / Rear Cap Left Body/
Cavity C9 / Cavity J / Cavity B / Cavity D

. 1046 rear cap left body

. 10421 splice kick out window connector
. Cavity D / 126GK

. Cavity B / 126B

. Cavity J / 126GJ

. Cavity C9 / 126B

Oahwhd =

29. Install overlay harness from Splice Push Out Window Connector 10421
Figure 7, Item 2) to Rear Cap Left Body connector 10406 (Figure 7, Item

1).

a. Install one end of wire 126G into cavity B (Figure 7, Item 4) of splice
Push Out Window Connector 10421 (Figure 7, Item 2).

b. Run wire down driver-side of bus to rear cap connector 10406.

c. Install opposite end of wire into cavity C9 Figure 7, Item 6) of 10406
rear cap left body connector (Figure 7, Item 1).

VEHICLE RECALL 21506
© 2021 Navistar, Inc. All rights reserved. All marks are trademarks of their respective owners.
REAR CAP/R
BODY
(10700)

—1268] 4.
18 GY
_ 11-6
12 WH

A3

| NS
No

0000471555

Figure 8. Rear Cap Right Body Connector / Cavity A5

1. 10700 rear cap right body connector
2. Cavity A5 / 126B

30. Install overlay from left-side to right-side of rear cap.

a. Install one end of overlay harness into cavity C9 (Figure 7, Item 6)
of Rear Cap Left Body connector 10406 (Figure 7, Item 1).

b. Run wire from left-side to right-side of rear cap.

c. Install opposite end of harness into cavity A5 (Figure 8, Item 2) of
Rear Cap Right Body connector 10700 (Figure 8, Item 1).