Technical Service Bulletin 46-003 — 2021 PETERBILT 520
ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
Bulletin Details
| TSB ID | 46-003 |
| Manufacturer | |
| Vehicle | 2021 PETERBILT 520 |
| Component | ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC) |
| Communication Date |
Bulletin Summary
A software fix for model 520EV that are not equipped with ESP (Stability Control) is now available. The currently available soft ware, part number:SCM_1p5_BC_R5p00_003, will address issues caused by software version R5.00_002 that affect Peterbilt Model 520EV. The software update will correct the following issues: 1.) Power gauge displays axle RPM instead of power draw, 2.) Air conditioning compressor is inoperative below 10 mph (16 kmh) and over 40 mph (65 kmh), 3.) Low air and low coolant audible alarms (buzzers) are inoperative below 10 mph (16 kmh), and 4.) (520EV Only) Does not charge without ignition in on position.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2021 PETERBILT 520
TIB 98-020
EQUIPMENT
E280
ENGINE AND ENGINE COOLING