YearToAvoid

2021 Toyota Highlander Hybrid Reliability Data: Problems & Recalls

Avoid The 2021 Toyota Highlander Hybrid has a complaint index of 75, ranking 6th worst out of 21 model years, and carries an Avoid verdict. NHTSA lists 15 complaints and 4 recalls, with airbags as the top problem area at 53% of complaints.

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

YearToAvoid Scorecard

Complaint Index
75/100
#6 of 21 Highlander Hybrid years
Verdict
Avoid
vs. other years of this model
Complaints
15
unique NHTSA reports
Recalls
4
distinct NHTSA campaigns
Crashes
0
reported in complaints
Fires
0
Injuries
0
Top issue
Airbags
Best nearby year
2019
rated Good
NHTSA overall rating
5 / 5 ★
EPA combined MPG
35
35 city / 35 hwy
Injuries / deaths
0 / 0

Top 2021 Toyota Highlander Hybrid problems

Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.

  1. Airbags8 (53%)
  2. Structure & Body4 (27%)
  3. Fuel System2 (13%)
  4. Brakes1 (7%)
  5. Electrical System1 (7%)
  6. Engine1 (7%)

A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.

What owners report

  • Owners report the fuel gauge shows full while the tank still accepts several more gallons and distance-to-empty readings fall well short of expected range.
  • Some drivers say the vehicle kept moving forward briefly after they pressed the brake pedal, with dealers unable to find a cause and attributing it to normal hybrid system behavior.
  • Multiple owners describe waiting for parts under the airbag sensor recall (23V865000), with repairs only partially completed and the airbag sensor deactivated in the meantime.
  • Owners waiting on the structure recall (23V720000) report the front bumper cover detaching or coming loose while driving, in one case at highway speed.
  • A brake complaint describes intermittent brake release at slower speeds that caused the vehicle to lurch forward, a failure the dealer could not reproduce.
2021 Toyota Highlander Hybrid complaints: complaints filed per month2Dec 2020Feb 2024Sep 2024Nov 2024Jan 2025Oct 2025
15 complaints filed with NHTSA from Dec 2020 to Feb 2026; peak Sep 2024 (2).

2021 Toyota Highlander Hybrid recalls

4 NHTSA recall campaigns list this model year.

  1. NHTSA 26V128000Mar 5, 2026Structure & Body686,588 vehicles

    Seats:mid/rear assembly:recliner

    Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021-2025 Highlander and Highlander Hybrid vehicles. The second-row seat backs may fail to lock into position during seat back adjustment.

    Risk: A seat back that fails to lock may not properly restrain an occupant during a crash, increasing the risk of injury.

    Remedy: Dealers will replace the return springs in the seat back recliner assemblies, free of charge. Owner letters were mailed September 9, 2026. This is a phased recall. Owners may contact Toyota’s customer service at 1-800-331-4331. Toyota's numbers for this recall are 26TB06 and 26TA06.

  2. NHTSA 23V865000Dec 20, 2023Airbags999,901 vehicles

    Air bags:sensor:occupant classification

    Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H vehicles. A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger air bag from deploying.

    Risk: An air bag that does not deploy during a crash increases the risk of injury.

    Remedy: Dealers will inspect and replace the sensor as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed in February 2024. Some final remedy owner letters were mailed October 31, 2024. Letters will continue to be mailed in phases through January 2026. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB15/23TA15 Lexus 23LB03/23LA03.

  3. NHTSA 23V720000Oct 26, 2023Structure & Body750,795 vehicles

    Structure:body:bumpers

    Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2023 Highlander & Highlander Hybrid vehicles. During normal vehicle operation, minor impact to the front lower bumper cover may result in the cover coming loose or detaching.

    Risk: A detached front bumper cover can become a road hazard, increasing the risk of a crash.

    Remedy: Dealers will repair or replace the upper and lower front bumper covers as necessary, free of charge. Owner letters were mailed April 22, 2024. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB12/23TA12.

See all 4 recalls for the 2021 Toyota Highlander Hybrid →

2021 Toyota Highlander Hybrid fuel economy and fuel cost

City
35 MPG
Highway
35 MPG
Combined
35 MPG
Annual fuel cost (EPA)
$1,850
15,000 mi/yr
Fuel
Regular
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2021 compared with other Highlander Hybrid years

Complaint Index by model year (0 = fewest issues, 100 = most)0255075100’05’06’07’08’09’10’11’12’13’14’15’16’17’18’19’20’21’22’23’24’25
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2019Good406028.5
2020Caution659435
2021Avoid7515435
2022Caution556435
2023Caution709635

All Toyota Highlander Hybrid years: best and worst →

Frequently asked questions

Is the 2021 Toyota Highlander Hybrid reliable?
Based on NHTSA owner complaints and recalls, the 2021 model ranks 6th worst among 21 model years with a complaint index of 75 and carries an Avoid verdict relative to other Highlander Hybrid years.
What are the main problems with the 2021 Toyota Highlander Hybrid?
Airbags account for 53% of complaints, followed by structure and body issues at 27% and fuel system issues at 13%, according to NHTSA data.
Does the 2021 Highlander Hybrid have recalls?
NHTSA lists 4 recalls for the 2021 Highlander Hybrid, covering airbag sensors, a front bumper structure issue, seat back locking, and a skid control ECU software update.
At what mileage do problems typically show up on the 2021 Highlander Hybrid?
Median mileage at failure across complaints is 27,300 miles, though airbag complaints have a median of 31,000 miles and structure complaints 38,650 miles.
Were there any crashes or injuries reported for the 2021 Highlander Hybrid?
NHTSA data shows 0 crashes, 0 fires, 0 injuries, and 0 deaths reported for this model year.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.