The 2021 Toyota Highlander has 508 NHTSA owner complaints and 4 recalls on file (U.S. federal records, as of September 2026). The most-reported system is powertrain at 213 complaints (~$2,500 to repair). Source: NHTSA Office of Defects Investigation.
Average for the segment. Some recurring trouble spots worth knowing about.
0
Critical
4
Severe
0
Moderate
Should you avoid this 2021 Highlander?
Acceptable — with caveats
Worth owning if you verify the specific issues below before you buy.
Body: 42 complaints, classified severe
Reliability score 6.2/10 — around the segment average
4 recall campaigns on file
Our read of the federal NHTSA complaint and recall record for this exact year and model —
not a substitute for a pre-purchase inspection. How we score.
NHTSA crash-test safety ratings
5 / 5 overall
Overall★★★★★5/5
Frontal crash★★★★★4/5
Side crash★★★★★5/5
Rollover★★★★★4/5
Driver-assist features on the tested model:
Electronic stability control: Standard · Forward collision warning: Standard · Lane departure warning: Standard
Source: NHTSA New Car Assessment Program — tested configuration: 2021 Toyota HIGHLANDER SUV AWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.
Buying a used 2021 Toyota Highlander? Check these first
Here's what this model is known to do — so you can inspect for it, price it in, or
make the seller fix it before you sign.
What to inspect on this specific car
powertrain — 213 owner reports
· ~$2,500 to fix
brakes — 49 owner reports
· ~$450 to fix
body — 42 owner reports
· ~$1,500 to fix
airbags — 35 owner reports
· ~$1,100 to fix
⚠ The one to take seriously: body is flagged
severe on this model
.
Inspect it closely on a test drive.
Recalls to confirm are done
Run the VIN from the listing — 4 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 6.2/10 model. The priciest documented failure is
engine (~$3,100) — get the
seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report
tells you what this exact car has been through. Smart buyers get both.
A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in
this vehicle's actual NHTSA record, not generic advice.
Dash light, leak, worn part — snap it and we'll read it against this car's record.
Photo attached — type a question or just hit Ask.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
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What owners are saying
recent NHTSA-filed complaints · verbatim
2021 Highlander· body
While I was driving the vehicle on December 30, 2025 emerging on to the highway I heard a loud popping sound which I thought was one of the tires going flat when the plastic barrier underneath the car became unattached
The contact owns a 2021 Toyota Highlander. The contact stated that while driving at various speeds and depressing the accelerator pedal, the contact heard an abnormal whining sound coming from the front of the vehicle. The vehicle was taken to an independent mechanic, where the…
Headed westbound on 285 in Georgia; hit on passenger side front door and vehicle swerved several lanes and hit a wall going 60 miles per hour. The airbags did not deploy. I was injured badly and the vehicle was totaled.
I have a faulty transmission that is now widely known. 2021 Highlander with the UA80 transmission. Out of warranty and Toyota wants to provide no help even know this is an ongoing issue with so many owners
Had a problem with your 2021 Toyota Highlander?
File a complaint with NHTSA → It's free and official — owner filings are what build the federal safety record behind this page.
Estimate your repair exposure
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021-2024 Highlander and Highlander Hybrid vehicles
A seat back that fails to lock may not properly restrain an occupant during a crash, increasing the risk of injury.
Fix: 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.
Southeast Toyota Distributors, LLC (SET) is recalling certain 2021-2024 Highlander vehicles
Tires with an insufficient load rating can be overloaded and fail, increasing the risk of a crash.
Fix: SET will inspect and replace the tires and information placard, as necessary free of charge. Owner notification letters were mailed August 16, 2024. Owners may contact SET's customer service at 1-866-405-4226. SET's number for this recall is SET24A.
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
An air bag that does not deploy during a crash increases the risk of injury.
Fix: 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.
It's got known weak points. With a reliability score of 6.2 out of 10 based on 508 owner complaints filed with NHTSA, the 2021 Toyota Highlander has a higher-than-average rate of reported issues. The areas to watch are listed above. Whether it's worth owning depends on price, condition, and how much repair exposure you can absorb.
Should you avoid the 2021 Toyota Highlander?
The 2021 Toyota Highlander is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Body: 42 complaints, classified severe; Reliability score 6.2/10 — around the segment average; 4 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
What should I check before buying a used 2021 Toyota Highlander?
Inspect the powertrain first — it's the most-reported issue on this model, with 213 owner complaints filed. Average repair cost runs about $2,500 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
Is the 2021 Toyota Highlander a good used car to buy?
It scores 6.2 out of 10 on our NHTSA-based read of 508 owner complaints. The main thing to watch is powertrain. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
What's the most common problem on the 2021 Toyota Highlander?
Based on NHTSA records, the most-reported issue is powertrain, with 213 complaints filed. Average repair cost runs about $2,500 at an independent shop.
What's the most expensive thing that goes wrong?
The powertrain is one of the costlier repair items. Average repair cost runs about $2,500 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Toyota Highlander has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2021 Toyota Highlander?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 508 complaints on file and the costliest repair averaging $2,500, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.
Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database, last synced 13 hours ago. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Toyota/Highlander.
Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics.
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