SR19-42 – Missing Potentiometer Component – 2020 Prevost X3-45 & H3-45

October 29, 2019 NHTSA CAMPAIGN NUMBER: 19V777000

Missing Potentiometer Component

During night time vehicle operation, highest level of dash brightness may reduce the driver’s visibility, increasing the risk of a crash.


NHTSA Campaign Number: 19V777

Manufacturer Prevost Cars, Inc.


Potential Number of Units Affected 110



Prevost Cars, Inc. (Prevost) is recalling certain 2020 X3-45 VIP, X3-45 VIP Entertainer, X3-45 Passenger, H3-45 VIP, and H3-45 Passenger coaches. Due to a missing component, the driver may not be able to adjust the brightness of the dash illumination for the controls and indicators, allowing only the highest level of brightness. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 101, “Controls and Displays.”



Prevost will notify owners, and dealers will install the missing potentiometer component and required wiring to adjust the brightness of the dash’s illumination, free of charge. The recall began November 28, 2019. Owners may contact Prevost customer service at 1-866-870-2046. Prevost’s number for this recall is SR19-42.



Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to


Prevost Technical Publications




DATE : November 2019

First Release





Verify vehicle eligibility by checking warranty bulletin status with SAP or via ONLINE WARRANTY SYSTEM available on Service / Warranty tab of Prevost website.

Model VIN
H3-45 coaches  Model Year: 2020          From 2PCH33497LC7  up to 2PCH33498LC  incl.
H3-45 VIP motorhomes  Model Year: 2020 From 2PCVS3493LC  up to 2PCV3349XLC7 incl.
X3-45 coaches  Model Year: 2019 – 2020 From 2PCG33494KC up to 2PCG33496LC  incl.
X3-45 VIP commercial use  Model Year: 2019 – 2020 From 2PCCS3499KC up to 2PCCS3496LC7 incl.
This Safety Recall does not necessarily apply to all the above-mentioned vehicles, some vehicles may have been modified before delivery. The owners of the vehicles affected by this recall will be advised by a letter indicating the Vehicle Identification Number (VIN) of each vehicle concerned.



On vehicles affected by this recall, the dashboard potentiometer (controlling the dash illumination intensity) may not have been factory installed.



Order kit # SR19-42, which includes the following parts:

Part No. Description Qty
562291 TERMINAL,RECEP,ST,22-18,1/4,N-INS 1
562499 SHRINK .250in .125in CLEAR -55C, +135C 1in


Material can be obtained through regular channels.



Park vehicle safely, apply parking brake, stop 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.

Lock out & 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.


Confirm that the dashboard potentiometer is missing and proceed with the following steps.


1. Remove the rubber cap installed over the potentiometer opening in the dashboard.


2. Remove the dashboard cover.


3. Under the dash, unscrew and move away (do not disconnect) the AE55 I/O-EA module installed over the potentiometer area.


4. Find the potentiometer wires Pot1 (yellow) & A55J1.1 (orange) and remove the jumper wire connecting them together.


5. Replace the Pot1 terminal.


− Cut the Pot1 wire factory terminal and splice the wire end.

− Install (crimp) the supplied smaller 562291 terminal to the spliced end of the Pot1 wire.


− Install the supplied 562499 shrink tubing over the new connector (metal/spade part of the connector must be entirely covered).


6. H3-45 VIP and X3-45 VIP Commercial use vehicles:

− Enlarge the potentiometer opening to 10mm (3/8in) using a regular drill bit.


H3-45 & X3-45 Coaches:

Enlarge & offset 3.5mm (9/64in) to the left the potentiometer opening using either, a 10mm (3/8in) die grinder bit, a stepped bit or a round file.



H3-45 & X3-45 vehicles: If present, remove the dash switch next to the potentiometer opening.


7. Connect the supplied 563881 potentiometer (once installed, tab connectors will point down).

− Remove & discard the potentiometer locating tab (reinstall the lock nut).


− Connect the Pot1 wire (smaller terminal) to the potentiometer center tab (carefully bent the center tab 45deg).


− Connect the A55J1.1 wire to the lower right tab (viewed from front, knob side as shown).


8. Install the potentiometer on the vehicle dashboard.


− Insert the potentiometer in the dash opening (connectors pointing down).


− Secure the potentiometer to the dash using the supplied locknut.


H3-45 & X3-45 coaches: Reinsert & reconnect the rocker switch next to the potentiometer & check for correct clearance.



There must be at least a 1.5mm (1/16in) gap between the rocker switch and the potentiometer body.


− Install the potentiometer knob (secure with the small locknut on the side of the knob).


− Connect the vehicle power & turn the lights on to validate that the potentiometer is working properly.

− Make sure that there is sufficient obscurity inside the driving area and watch for a dimming effect on the panel switches, radio & cluster display.

− Make sure that the knob pointer travel is correct (pointer is at the lower left at the low setting and lower right at the max setting).

− Reinstall the AE55 I/O-EA module and the dash cover.



Discard waste according to applicable environmental regulations (Municipal/State[Prov.]/ Federal)



This modification is covered by Prevost’s normal warranty.  We will reimburse you the parts and one hour (1.0) of labor upon receipt of a completed A.F.A. Please submit claim via our Online Warranty System, available at (under service \ warranty section). Use Claim Type:  “Bulletin/Recall” and select ‘’Safety Recall SR19-42 “.

Should you only wish to close the safety recall (without reimbursement), fill-in the ‘’Safety Recall Certification Sheet’’ provided with this bulletin and return it to our warranty department by Email at or by fax at 418-831-9301.



VBC Bulletin N/A
Fail Code 06.07
Defect Code 09
Syst.Cond R
Causal Part 562845


Access all our Service Bulletins on or scan the QR-Code with your smart phone.

E-mail us at and type “ADD” in the subject to receive our warranty bulletins by email.


November 2019


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PREVOST SAFETY RECALL SR19-42 “Potentiometer Installation”


Dear Customer,

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act and 49 CFR Part 573.

Prevost Car US Inc. has decided that a defect which relates to motor vehicle safety exists in certain 2020 H3-45 coaches & H3-45 VIP motorhomes; 2019 – 2020 X3-45 coaches and  X3-45 VIP for commercial use.

According to our records, you are the registered owner of the following vehicle(s) involved in safety recall SR19-42 :




















On the vehicles involved, the potentiometer & components to adjust the brightness of illumination for controls and indicators may be missing. The only available level of brightness for identification of controls and indicators would then be the highest.



This presents a risk that during night time vehicle operation, highest level of brightness for identification of controls and indicators may impact the driver attention and road vision and may increase the risk of a crash.



For all vehicles involved, Prevost will install free of charge, the potentiometer component and required wiring required to adjust the brightness of illumination for controls.



Please make an appointment to your nearest Prevost Service Center and refer to SR19-42 to have the work performed free of charge.

Optionally, you may have the work performed by qualified personnel of your choice, following the Safety Recall SR19-42 procedure that can be found on Prevost Technical Publications web site at this address:

Prevost will reimburse you parts and labor as described in the SR19-42 procedure. Please file an online warranty claim following normal Campaign procedures if you are a registered customer, otherwise, contact the Prevost Warranty Department at 1-866-870-2046 for reimbursement instructions.

The time to inspect and repair your vehicle if required is approximately one hour (1.0 h).



If you have previously paid for repairs as a result of this issue, you may be entitled to recovery of those expenses.  Prevost Car US will reimburse the claimant by check for the reasonable amount paid for repairs (i.e. the cost of parts, labor, disposal fees and taxes) that addressed the defect as stated in the safety recall notification.  To qualify, repairs must have been completed no earlier than one year prior to the release of the recall and no later than 10 days after the release of the recall mailing of the initial customer notification letter pertaining to the recall. To get reimbursed, please file an online warranty claim following normal Campaign procedures if you are a registered customer, otherwise, contact the Prevost Warranty Department at 1-866-870-2046 for reimbursement instructions.



If you are a Lessor of vehicles subject to this Notice, you have an obligation under Federal Law to provide a copy of this Notice to all Lessees within 10 working days of your receipt of this Notice. Further, you must maintain a record, which identifies the Lessee(s) to whom you send a copy of this letter, the date you send this letter, and the Vehicle Identification Number(s) of the vehicle(s) that you have leased to that lessee. For purposes of this Notice, the term Lessor means: a person or entity that is the owner, as reflected on the vehicle’s title, of any five or more leased vehicles (as defined in CFR Section 577.4), as of the date of notification by the manufacturer of the existence of a safety-related defect or noncompliance with a Federal Motor Vehicle Safety Standard in one or more of the leased motor vehicles.



If your address has changed, or you no longer own the vehicle(s),  please help us update our records. Use the link below to access the Prevost Warranty Support web page.

Click on the link ‘Change of address or ownership’, fill the form, save it and email the file to



If you need assistance, please contact your nearest Prevost Service Center. You will find the Prevost Parts & Service Centers location at this address:



You may submit complaints if you believe that Prevost Car US has failed to remedy the defect without charge, or has failed to remedy the vehicle within 60 days of the owners first tender to obtain repair following the earliest time that parts are available.

You may submit the complaint to the Administrator of the National Highway Traffic Safety Administration located at 1200 New Jersey Avenue SE, Washington, DC 20590, USA.  Hotline: 1-888-327-4236, (TTY): 1-800-424-9153) or go to

We regret any inconvenience this may cause to your operation, but hope you will appreciate our sincere efforts to demonstrate Prevost’s commitment to provide our customers with the best possible product.

Truly yours,

Prevost Service Team


2 Affected Products


PREVOST H3-45 2020
PREVOST X3-45 2020


7 Associated Documents

Recall Quarterly Report #1, 2019-4

RCLQRT-19V777-9504.PDF 211.128KB



Owner Notification Letter(Part 577)

RCONL-19V777-3594.pdf 192.69KB



Remedy Instructions and TSB

RCRIT-19V777-6083.pdf 1080.523KB



Non-Compliance Notice 573 Report

RCLRPT-19V777-1033.PDF 212.893KB



Recall Acknowledgement

RCAK-19V777-4841.pdf 245.021KB



Recall Quarterly Report #4, 2020-3

RCLQRT-19V777-4742.PDF 211.422KB



Recall Quarterly Report #3, 2020-2

RCLQRT-19V777-8665.PDF 211.312KB



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