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Vehicle recall 20V429000 · July 24, 2020

2020 Peterbilt 520

Incorrect bolts may have been used to secure the steering assist cylinder bracket, possibly allowing the bolts to loosen.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary
PACCAR Incorporated (PACCAR) is recalling certain 2020 Peterbilt 520 vehicles. Incorrect bolts may have been used to secure the steering assist cylinder bracket, possibly allowing the bolts to loosen.
Consequence
Loose bolts may cause the bracket to flex or break, potentially damaging adjacent components or locking up the steering, increasing the risk of crash.
Remedy
PACCAR will notify owners, and dealers will install hardware with thread adhesive and replace any components damaged by the improperly secured steer assist bracket, free of charge. The recall began August 17, 2020. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for this recall is 20PBD.
Notes
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 details

NHTSA campaign
20V429000
Reported to NHTSA
July 24, 2020
Filed by
PACCAR Incorporated
Manufacturer campaign
20PBD
Owner notification
August 17, 2020
Vehicles potentially affected
239
Initiated by
the manufacturer
Components
Steering › Electric power assist system
Recall 20V429000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Has your Peterbilt been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Peterbilt dealer can also check your VIN. Recall repairs are free.