2020 Prevost X3 COM: common problems

The maker issued 15 service bulletins for this year. Details by component below, with sources.

Key figures

Technical service bulletins (TSB): 15

Components owners complain about

Component	Owner complaints	involving a crash	Technical service bulletins (TSB)
Equipment	0	0	6
Electrical system	0	0	4
Service brakes	0	0	4
Visibility	0	0	2
Fuel system	0	0	1
Steering	0	0	1
Wheels	0	0	1

Comparison

What to check before buying

Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Visibility. Wipers, mirrors, defrosters, cracked glass.
Fuel system. Fuel smell, leaks, rough running, fuel-system codes.

Manufacturer service bulletins

Bulletin titles as filed with NHTSA.

received by NHTSA in 2020–2024 · № 10232208 · Equipment Driver's barrier installation instructions
received by NHTSA in 2020–2024 · № 10231093 · Electrical system STEERING GATEWAY
Revision B - PIN 2 and 10 were inverted on connector A139
received by NHTSA in 2020–2024 · № 10228667 · Service brakes Air Tanks Draining Sequence. Revision
received by NHTSA in 2020–2024 · № 10226928 · Service brakes Air Tanks Draining Sequence. Revision
A - Erroneous Secondary & Accessory tanks location.
received by NHTSA in 2020–2024 · № 10226927 · Service brakes Air Tanks Draining Sequence
received by NHTSA in 2020–2024 · № 10222380 · Wheels TAG AXLE HUB FLANGE - ALTERNATE CAP SCREW
received by NHTSA in 2020–2024 · № 10217314 · Equipment STORAGE AND STARTUP GUIDELINES
part number updates
received by NHTSA in 2020–2024 · № 10217311 · Electrical system TGW PROGRAMMING
received by NHTSA in 2020–2024 · № 10214937 · Equipment X3 SERIES ENVIROCARE - IONS AIR SANITIZER
received by NHTSA in 2020–2024 · № 10214936 · Electrical system STEERING GATEWAY Revision A Cancel watch dog removal from EFD part of the instruction
received by NHTSA in 2020–2024 · № 10214935 · Visibility CENTRAL HVAC MERV FILTERS INSTALLATION
received by NHTSA in 2020–2024 · № 10213318 · Equipment BRAKE PEDAL SEAL PLATE INSTALLATION KIT

NHTSA lists 15 bulletins for this year; the 12 newest are shown here.

Other years of this model

Questions and answers

What are the most common problems with the 2020 Prevost X3 COM?

There are no owner complaints in the NHTSA data for this year; the data comes from 15 manufacturer service bulletins.

How many service bulletins (TSB) were issued for the 2020 Prevost X3 COM?

NHTSA lists 15 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2020 Prevost X3 COM from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2020 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.