Defect
STEERING WHEEL RETAINING NUTS MAY HAVE BEEN IMPROPERLY INSTALLED AND/OR TORQUED.
Remedy
RENEW AND RETORQUE STEERING WHEEL RETAINING NUTS.
The 1989 Mack Dm Series has 1 NHTSA recall campaign affecting an estimated 16,000 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
STEERING WHEEL RETAINING NUTS MAY HAVE BEEN IMPROPERLY INSTALLED AND/OR TORQUED.
RENEW AND RETORQUE STEERING WHEEL RETAINING NUTS.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1989 Mack Dm Series as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.