SUSPENSION:MULTIPLE AXLE
2015 Peterbilt 520
Recalls, owner-reported complaints, investigations and safety data
Overview
Our database contains no NHTSA owner-reported complaints for the 2015 Peterbilt 520. 3 safety recalls have been issued covering this model year; and 24 manufacturer communications are on file.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Safety recalls
3 campaigns cover this model year
Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.
Check a VIN on NHTSA.govSTEERING:COLUMN
EXTERIOR LIGHTING:TAIL LIGHTS; EXTERIOR LIGHTING:TURN SIGNAL
Recent owner complaints
Reports submitted to NHTSA, shown in the owner's own words
No owner complaints recorded for this model year
Either none have been filed with NHTSA, or this vehicle is too new for reports to have accumulated.
Manufacturer communications
A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.
ENGINE
Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a comprehensive list of starting system checks, which should reduce unnecessary starter replacements and associated warranty claims. Engine starting system warranty claims now require a completed Starter Checklist, a Battery Pack Midtronics Report, and a Cable Drop Midtronics Report. Claims filed without these documents may be denied.
SERVICE BRAKES
The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
VISIBILITY
Info Only â Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC system, may have service port spacing which will not allow the connection of a pressure gauge to both the high and low side service ports simultaneously. A specific tool is available from the supplier that will allow a technician to bypass this design issue.
ENGINE AND ENGINE COOLING
An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system software related issues.
ELECTRICAL SYSTEM
The current chassis harness connector contains a wire that is no longer necessary with the latest electrical architecture. The presence of the wire could result in a false fault code.
EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY; VISIBILITY:WINDSHIELD WIPER/WASHER
Information Only â Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.
Compare model years
Complaint and recall counts across every year of this model
| Year | Complaints | Recalls | Investigations | Issue Index |
|---|---|---|---|---|
| 2026 | 0 | 2 | 0 | — |
| 2025 | 0 | 7 | 0 | — |
| 2024 | 0 | 8 | 0 | — |
| 2023 | 0 | 5 | 0 | — |
| 2022 | 0 | 4 | 0 | — |
| 2021 | 0 | 6 | 0 | — |
| 2020 | 3 | 12 | 0 | — |
| 2019 | 1 | 8 | 1 | — |
| 2018 | 0 | 8 | 1 | — |
| 2017 | 0 | 5 | 1 | — |
| 2016 | 0 | 4 | 0 | — |
| 2015Viewing | 0 | 3 | 0 | — |
| 2014 | 0 | 1 | 0 | — |
| 2013 | 0 | 1 | 0 | — |
| 2012 | 0 | 1 | 0 | — |
| 2011 | 0 | 1 | 0 | — |
| 2010 | 0 | 1 | 0 | — |
| 2009 | 0 | 1 | 0 | — |
| 2008 | 0 | 1 | 0 | — |
| 2007 | 0 | 1 | 0 | — |
| 2006 | 0 | 1 | 0 | — |
| 2005 | 0 | 1 | 0 | — |
| 2004 | 0 | 1 | 0 | — |
| 2003 | 0 | 1 | 0 | — |
| 2002 | 0 | 1 | 0 | — |
| 2001 | 0 | 1 | 0 | — |
| 2000 | 0 | 1 | 0 | — |
| 1999 | 0 | 1 | 0 | — |
| 1998 | 0 | 1 | 0 | — |
| 1997 | 0 | 1 | 0 | — |
| 1996 | 0 | 1 | 0 | — |
| 1995 | 0 | 1 | 0 | — |
| 1994 | 0 | 1 | 0 | — |
| 1993 | 0 | 1 | 0 | — |
| 1992 | 0 | 1 | 0 | — |
| 1991 | 0 | 1 | 0 | — |
| 1990 | 0 | 1 | 0 | — |
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.