There are 1 owner-reported powertrain & transmission complaints for the 2020 Toyota 4Runnerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
BRAKES ARE NOT FUNCTIONING PROPERLY, THE PEDAL GOES WAY DOWN TO THE FLOOR BEFORE ENGAGING ANY BRAKES. AT IDLE THE BRAKES SEEM TO FUNCTION FINE, AFTER DRIVING AT ABOUT 10MPH THE BRAKES GO BACK TO NOT WORKING AGAIN. DEALERSHIP SAYS THE BRAKES ARE "NORMAL" AND I WAS TOLD TO DRIVE IT HOME EVEN THOUGH IT WAS STILL HAVING THE ISSUE. TRANSMISSION IS NOT SHIFTING PROPERLY EITHER, IT GETS STUCK AT 4000-5000 RPM SOMETIMES AND THEN SHIFTS INTO THE NEXT GEAR. THE BRAKING ISSUE OCCURRED EVEN WORSE GOING DOWN A HILL AT 55MPH RIGHT BEFORE IT WENT IN FOR SERVICE.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026