2021 TOYOTA HIGHLANDER PROBLEMS

Common Complaints and Reliability

• 1. Engine & Transmission Issues

  • Engine stalling while driving, leading to potential accidents
    
  • Unintended acceleration, vehicle lurching forward unexpectedly
    
  • Delayed engine start or long crank times
    
  • Vehicle failing to restart after engine shutoff
    
  • Check engine light appearing intermittently
    
  • Transmission shifting erratically, causing rough driving
    

• 2. Braking & Stability Issues

  • Brakes failing at low speeds, leading to longer stopping distances
    
  • Intermittent loss of braking power, causing surging forward
    
  • Electronic parking brake malfunctioning, failing to engage properly
    
  • Brakes suddenly disengaging when going over bumps
    
  • Emergency braking system not engaging during sudden stops
    
  • Vehicle rolling backward despite being in park
    

• 3. Steering & Suspension Issues

  • Lane departure assist pulling the vehicle aggressively out of lane
    
  • Steering wheel vibrating excessively at highway speeds
    
  • Power steering malfunctioning intermittently
    
  • Rear end swaying uncontrollably after sudden lane changes
    

• 4. Electrical & Infotainment System Problems

  • Dashboard warning lights appearing randomly
    
  • Cruise control failing to disengage properly
    
  • Key fob failing to lock/unlock doors properly
    
  • Infotainment system freezing or restarting unexpectedly
    
  • Battery draining unexpectedly, leaving vehicle stranded
    

• 5. Safety & Airbag Concerns

  • Airbags failing to deploy in crashes
    
  • Seatbelt mechanisms jamming or cutting into passengers
    
  • Rear cross-traffic alert failing to detect smaller vehicles or pedestrians
    
  • Forward collision system not activating in emergencies
    

• 6. Structural & Visibility Issues

  • Sunroof shattering unexpectedly while driving
    
  • Windshield cracking easily from minor impacts
    
  • Side mirrors vibrating excessively at highway speeds, reducing visibility
    
  • Water leaks from the roof rack causing mold and interior damage
    
  • Excessive wind noise inside the cabin, causing discomfort
    

• 7. Fuel System Problems

  • Fuel tank not accepting full 17.1-gallon capacity, only allowing 12-13 gallons
    
  • Fuel gauge providing incorrect readings, leading to uncertainty in range
    
  • Vehicle shutting off due to fuel system failures
    

• 8. Tire & Wheel Problems

  • Tire blowouts occurring without warning
    
  • Excessive and premature tire wear
    
  • Tire pressure monitoring system (TPMS) failing to provide accurate readings