Electronic stability control (ESC)Recall 20V-739 · 2020–2021 Peterbilt 520
PACCAR Incorporated recall 20V-739 covers 11 2020–2021 Peterbilt 520 for a electronic stability control (esc) problem, reported to NHTSA on November 25, 2020. The manufacturer's latest report (2022 Q4) shows 100% of affected vehicles repaired.
Source: NHTSA recall 20V739000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 520 vehicles. The stability control brake relay may have the Spring Brake Modulating (SBM) Valve or the lift axle hose incorrectly connected.
The risk
A stability control event meant to only actuate the ABS controlled wheel ends could actuate lift axle brakes or modulate park brake chambers and could possibly de-stabilize the vehicle, increasing the risk of a crash.
The fix
PACCAR will notify owners, and dealers will inspect the suspect chassis and correct the brake relay plumbing if needed, free of charge. PACCAR has issued owners an interim notification on January 4, 2020. Owner notification letters were mailed on January 25, 2021. Owners may contact Peterbilt customer service at 1-940-591-4220. PACCAR's number for this recall is 20PBF.
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 www.safercar.gov.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
How fast cars are being fixed
100%repaired
Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.
Vehicles in this recall
Built from September 26, 2019 to July 22, 2020. Not every vehicle in these model years is included; check by VIN.