The 1990 Mack Mr has 3 NHTSA recall campaigns affecting an estimated 40,406 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.
THE STEERING ARM CAN DEVELOP CRACKS CAUSING THE LEVER TO BREAK WITHOUT WARNING.
THIS CAN RESULT IN LOSS OF STEERING CONTROL AND AN ACCIDENT.
DEALERS WILL REPLACE THE STEERING LEVERS WITH AN IMPROVED STEERING LEVER WITH INCREASED FATIGUE STRENGTH.
FUEL INJECTION SYSTEM RECONFIGURATION TO COMPLY WITH ENGINE EMISSION STANDARDS CAUSE HIGHER ENGINE VIBRATION LEVELS WHICH LEAD TO EARLY WEAR AND COMPLETE FAILURE OF THE SECONDARY THROTTLE RETURN MECHANISM.
IN THE EVENT THE PRIMARY THROTTLE RETURN FAILS, FAILURE OF THE SECONDARY THROTTLE RETURN SYSTEM WOULD NOT PROVIDE PROTECTION AGAINST LOSS OF THROTTLE CONTROL.
A NEW PRODUCTION SECONDARY THROTTLE RETURN SYSTEM CONFIGURATION WILL BE INSTALLED.
THE STONE BENNETT SHIFTERS DO NOT INDICATE THE RELATIVE POSITION OF THE SHIFT LEVER TO THE DRIVER.
THE SHIFT LEVER DOES NOT MEET THE REQUIREMENTS OF FMVSS102.
INSTALL A DECAL DISPLAYING THE RELATIVE SHIFT POSITIONS.
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1990 Mack Mr as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.