SP21-310 Service Bulletin/Repair Instructions

SP21-310
Special Bulletin

Date
Expiration
Release
Page
09.2021
09.2023
1
1(5)
First Release -
09-22-2021
INTERFERENCE BETWEEN THE WIPER ARM AND THE WIPER BLADE

Prevost vehicles

DESCRIPTION

On the vehicles affected by this bulletin, follow this procedure to correct a possible interference between the

wiper arm and the wiper blade.

MODEL YEAR(S) AND VEHICLES INVOLVED

NOTICE TO SERVICE CENTERS

Verify vehicle eligibility by checking warranty bulletin status with SAP or via ONLINE WARRANTY

SYSTEM available on Service / Warranty tab of Prevost website.

Model

X3-45 Commuter

Model Year: 2021 - 2022
VIN

From 4RKJ33492M9737751 up to 4RKJ33493N9737940 incl.
This bulletin does not necessarily apply to all the above-mentioned vehicles, some vehicles may have been modified

before delivery.
PROCEDURE
DANGER

Park vehicle safely, apply parking brake, stop the engine. Prior to working on the vehicle, set the ignition

switch to the OFF position and trip the main circuit breakers equipped with a trip button. On Commuter

type vehicles, set the battery master switch (master cut-out) to the OFF position.

Lockout & Tag out (LOTO) must be performed during set-up, maintenance or repair activities. Refer to

your local procedure for detailed information regarding the control of hazardous energy.
1. On both wiper arm assemblies, disconnect the windshield washer fluid hoses from the nozzles.

Writer: EL
SP21-310
Special Bulletin

Date
Expiration
Release
Page
09.2021
09.2023
1
2(5)
Figure 1
2. On both wiper arm assemblies, detach the hose holder. Take care not to damage the wiper

arm paint.
Figure 2

Figure 3
3. Reinstall the hose holder so that the hose groove is located as follows:

•
On the street side wiper arm assembly, the hose groove is located on the street side of the

arm (Figure 4).
•
On the curb side wiper arm assembly, the hose groove is located on the curb side of the

arm (Figure 4).
Figure 4 : AS SEEN FROM INSIDE

Writer: EL
SP21-310
Special Bulletin

Date
Expiration
Release
Page
09.2021
09.2023
1
3(5)
Figure 5
4. On the street side wiper arm assembly, route the windshield washer as shown and connect to

the nozzle (Figure 6).
Writer: EL
SP21-310
Special Bulletin

Date
Expiration
Release
Page
09.2021
09.2023
1
4(5)
Figure 6 : STREET SIDE WIPER ARM
5. On the curb side wiper arm assembly, route the windshield washer as shown and connect to

the nozzle (Figure 7).
Figure 7 : CURB SIDE WIPER ARM
6. Test the windshield washer system to make sure it does not leak.
Writer: EL
SP21-310
Special Bulletin

PARTS / WASTE DISPOSAL
Date
Expiration
Release
Page
09.2021
09.2023
1
5(5)
Discard waste according to applicable environmental regulations (Municipal/State[Prov.]/ Federal)
ESTIMATED TIME

The time required to perform this special bulletin is ¼ (0.25) hour.

OTHER

VBC Bulletin
N/A
Fail Code
23.05
Defect Code
09
Syst. Cond
B
Causal Part
800216
Access all our Service Bulletins on
http://techpub.prevostcar.com/en/

or scan the QR-Code with your smart phone.
Prevost engages in a continuous program of testing and evaluating to provide the best possible product. Prevost, however, is not

committed to, or liable for updating existing products.
Writer: EL

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Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API

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