Last updated: 2026-04-20

2021 Toyota 4RUNNER Reliability Report
The 2021 Toyota 4RUNNER scores 82/100 ("Excellent") with a complaint rate below the segment average. Data shows a dependable ownership experience across 1 recall and 31 owner complaints.
Recalls
1
Complaints
31
Complaint Rate
2.1per 10,000 sold
Est. Repair Cost
$514
Annual Fuel Cost
$3,500
Detailed Score Breakdown
Component-weighted complaints normalized by sales volume
Independent repair cost ratings
Recall count weighted by severity
Breadth of reported problem categories
The Verdict
Strong reliability record — a solid choice for buyers.
Top Issues to Watch
- STEERING (11)
- ELECTRICAL SYSTEM (3)
- SERVICE BRAKES (3)
Generation & Refresh (US)
2021 is 8 years after the facelift refresh.
- Year 12 in the Fifth generation (N280) (2010–2024).
- Well-established in its generation — most early issues should be resolved.
- 5th generation 4RUNNER (US).
What this means for buyers
Post-refresh years tend to be among the most refined — updates have been applied and early kinks worked out.
2010: Fifth generation (N280) Launch
Generation start — new platform.
2013: Mid-Cycle Refresh
Updated features and styling tweaks.
2021: This Model Year
2021 is 8 years after the facelift refresh.
Should You Buy the 2021 Toyota 4RUNNER?
The 2021 Toyota 4RUNNER earns an Excellent 82/100 reliability score. 2021 is 8 years after the facelift refresh.
At 2.1 per 10,000 vehicles sold, its complaint rate sits below the SUV segment average, and most owners report a trouble-free ownership experience.
A solid choice for buyers prioritizing dependability, new or used.
Compared to the 2022 Toyota 4RUNNER, which scored 3 points lower. See also the 2020 Toyota 4RUNNER for an earlier comparison.
Pros
- +Strong reliability score
- +$59 cheaper to maintain than avg midsize SUVs
- +Low major repair risk (13%)
- +Low recall count
- +Below-average complaint rate for SUV
Cons
- −STEERING issues reported (11 complaints)
- −1 fire incident reported in owner complaints
Compare 2021 Toyota 4RUNNER With

2021 Ford Bronco-Sport
Reliability: 54/100

2021 Honda Passport
Reliability: 68/100

2021 Land Rover Defender 110
Reliability: 59/100

2021 Jeep Wrangler
Reliability: 56/100

2021 Ford Bronco
Reliability: 41/100
Common Problem Categories
Safety
LOW RISK- 1 manufacturer recall issued
Other
HIGH RISK- STEERING (11)
- ELECTRICAL SYSTEM (3)
Recall Overview
1
recall on record
The 2021 Toyota 4RUNNER carries 1 recall — a low count. Authorized dealers repair any open recall free of charge, regardless of warranty status.
NHTSA.gov →Complaint Breakdown
2.1
per 10,000 soldSegment avg: 17.5
Safety Incidents
3
Crashes
1
Fires
1
Injuries
0
Deaths
NHTSA 4/5 Stars
Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.
2021 Toyota 4RUNNER Recall Details
1 recall has been issued for the 2021 Toyota 4RUNNER. All recall repairs are performed free of charge at authorized dealerships.
EQUIPMENT
Southeast Toyota Distributors, LLC (SET) is recalling certain 2020-2022 4Runner vehicles equipped with 20-inch Black Gunner Wheels. The load carrying capacity modification labels are incorrect. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
Consequence
An incorrect label may lead to unintentionally overloading the vehicle, increasing the risk of a crash.
Remedy
SET will mail replacement labels to owners, free of charge. Owner notification letters are expected to be mailed September 4, 2022. Owners may contact SET's customer service at 954-429-2000. SET's number for this recall is SET22A.
Buying a used 2021 Toyota 4RUNNER? Check its history first
Every 2021 Toyota 4RUNNER has a different past. A VIN check reveals hidden accidents, title problems, odometer rollbacks, and open recalls that reliability scores can't show you.
- Accidents
- Open Recalls
- Title History
- Odometer Rollback
2021 Toyota 4RUNNER NHTSA Safety Ratings
Overall Safety Rating
Crash Test Results by Configuration (expand)
Gas Powertrain
Rollover risk: 24.6%
Safety Technologies
Toyota 4RUNNERRepair Costs & Maintenance
Maintenance Rating
4Maintenance rating: 4 out of 5Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.
Est. Annual Maintenance
$514
vs $573 avg for midsize SUVs
vs $652 avg for all vehicles
Repair Frequency
0.4
unscheduled repair visits per year
Severe Repair Probability
13%
chance of a major repair
Annual Cost Comparison
Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.
MPG & Annual Running Costs
Gas
17 MPG
Running cost: $4,000/yr
Fuel + repair
16 city / 19 hwy MPG
Running cost includes EPA fuel-cost estimate and independent repair-cost data (repair cost estimated at model level). Excludes routine maintenance, depreciation, and insurance. Data as of 2021 EPA label cycle.
Gas trims
| Trim | Drive | Trans. | City | Hwy | Comb | Fuel Cost |
|---|---|---|---|---|---|---|
| 4Runner 2WD 4.0L 6-cyl | Rear-Wheel Drive | Automatic (S5) | 16 | 19 | 17 | $3,500 |
| 4Runner 4WD 4.0L 6-cyl | Part-time 4-Wheel Drive | Automatic (S5) | 16 | 19 | 17 | $3,500 |
| 4Runner 4WD 4.0L 6-cyl | All-Wheel Drive | Automatic (S5) | 16 | 19 | 17 | $3,500 |
Used Buying Checklist
Key things to inspect or verify before purchasing a 2021 Toyota 4RUNNER.
Test drive at highway speeds (50-70 mph) to check for steering wheel shake
Inspect brake pedal for firmness and responsiveness
Verify backup camera functionality multiple times
Check door lock actuators for consistent operation
Inspect sunroof for any signs of stress or damage
Ensure all electrical systems, including airbags, are functioning properly
Check for any outstanding recalls and confirm repairs have been completed
2021 Toyota 4RUNNER Common Problems by Component
31 owner complaints grouped by vehicle system.
STEERING
11 complaintsOwners of the 2021 Toyota 4Runner frequently report issues with steering wheel shake and vibrations, particularly noticeable at highway speeds between 50-70 MPH. Symptoms often include a feeling of instability or loss of control, with some owners describing the vehicle pulling to the right. Many complaints arise shortly after purchase, with some mentioning the problem within the first 100 to 500 miles. Despite multiple attempts at tire balancing, alignments, and even replacing tires, the issue persists for many. Safety implications are highlighted by several owners who fear losing control, especially in adverse weather conditions. This information is particularly relevant for potential buyers considering a used 2021 4Runner.
ELECTRICAL SYSTEM
3 complaintsSafety-relatedOwners of the 2021 Toyota 4Runner report multiple issues related to the electrical system, with a focus on door lock actuator failures and an airbag system malfunction. Complaints frequently mention door locks failing on various doors, including the front passenger, front driver, and liftgate, over a span of several months, which affects the ability to enter or exit the vehicle safely. Another owner describes a malfunction in the SRS airbag system, specifically the front passenger Occupant ECU, which was diagnosed at a dealership and resulted in a costly repair. Additionally, one owner reports a significant safety incident where the vehicle caught fire while parked in a garage, leading to a total loss of the vehicle and damage to property, although the exact cause remains undetermined. These issues are reported at varying mileage ranges, with the fire incident occurring at 5,500 miles, highlighting potential safety implications for prospective buyers.
SERVICE BRAKES
3 complaintsSafety-relatedOwners of the 2021 Toyota 4Runner report issues with the service brakes, primarily involving repeated brake and rotor replacements and sudden brake failure. Complaints frequently mention the brake pedal going to the floor without warning, leading to a temporary loss of braking capability. These incidents occur at various mileages, with one owner experiencing brake system replacements multiple times within 45,000 miles, while others report failures around 31,967 miles. Safety implications are significant, with one reported crash occurring as a result of brake failure. Used car buyers should be aware that some owners describe difficulty in diagnosing these issues, as they can be intermittent and not always replicable by service technicians.
SUSPENSION (3 complaints)
SUSPENSION
3 complaintsOwners report issues with the suspension of the 2021 Toyota 4Runner, particularly with the TRD Pro model's FOX shocks, which produce a clunking sound at low speeds. This problem persists despite multiple shock replacements under warranty. Another common issue involves a steering wheel shimmy occurring intermittently at speeds between 55-63 mph, which is noted in owner forums but lacks a definitive solution. Additionally, some owners mention delays in recall repairs due to unavailable parts, although no failures or safety incidents are reported. These complaints suggest potential concerns for buyers, especially those considering models with specific suspension features or those affected by recall notices.
BACK OVER PREVENTION (2 complaints)
BACK OVER PREVENTION
2 complaintsSafety-relatedOwners report issues with the 2021 Toyota 4Runner's backup camera, noting it fails to function consistently. Complaints frequently mention the camera displaying a black screen instead of showing objects behind the vehicle. Symptoms typically emerge without any dashboard warnings or error messages. One owner reports a crash resulting from reliance on the backup camera, which did not activate, leading to a collision with a parked car. These issues have been noted to start occurring approximately 6-8 months prior to the complaint, with no specific mileage mentioned. Buyers should be aware of these potential safety implications when considering this model.
VISIBILITY/WIPER (2 complaints)
VISIBILITY/WIPER
2 complaintsOwners of the 2021 Toyota 4Runner report issues with the vehicle's visibility systems, particularly the sunroof and sensors. One owner describes the sunroof glass shattering unexpectedly while driving, which resulted in glass falling onto the sunroof shade, highlighting a potential safety risk if the shade had been open. Another owner reports failures in the pre-collision system and headlight high beams during snowy conditions, noting that ice buildup on the forward sensor and headlight cover rendered these systems ineffective. These incidents occur at low mileage, with one report mentioning the issue at under 500 miles, indicating potential concerns for new or low-mileage vehicles. Safety implications include reduced visibility and compromised safety systems in adverse weather conditions.
FUEL/PROPULSION SYSTEM (1 complaints)
FUEL/PROPULSION SYSTEM
1 complaintVehicle was diagnosed from a mechanic with no fuel pressure due to not starting. Vehicle has approximately 135,000 miles and had no warnings or indications of problem. It appears when VIN was ran on gov. recall that Honda had issues with fuel pump. Vehicle will be inspected by Toyota dealer.
POWER TRAIN (1 complaints)
POWER TRAIN
1 complaintAs the vehicle was traveling on a highway at 35 mph the vehicle shut off electronically three times and powered itself back on after 15 seconds or so of continuous cruising on the highway. Unable to accelerate or control the vehicle while the electronic component shut off in the vehicle. Three days later, a series of warning lights and check engine lights turned on, which has occurred 6 other times, and has been brought to local Toyota dealer multiple times (over six times) and no fix has been conducted to repair the vehicle other than resetting the vehicles ECU. When all of the warning lights turn on, the vehicle loses 2nd gear and juts itself forward and becomes extremely difficult to control to the point where I have almost gotten into life threatening accidents over 4 times. Toyota has acknowledged that they do not know what is wrong with the vehicle and is unsure how to fix it. This is a safety concern that is not getting enough attention and needs to be rectified before someone or myself ends up killing ourselves
VEHICLE SPEED CONTROL (1 complaints)
VEHICLE SPEED CONTROL
1 complaintSafety-relatedwas going to work on rt 80 east had cruise control on and was getting off exit 45 in new jersey to get bus into manhattan at approx 430 amwhile getting off highway stepped on brakes pedal went to floor tried pumping nothing happened nor did criuise control disengage or collision warning come on a total collapse of system had this car for approx 1 month purchased used at paramus mercedes benz took this vehicle to my mechanic for a full inpection everything was good vehicle had approx 22000 miles on it at purchase lost all control and crashed going off roadway and sliding down bridge abuttment car is a total loss rushed to hospital car was hauled off abutment by wrecker company police fire and ambulance showed up had to break sunroof to get me out no one could belive i survived this happened yesterday feb 3 2023 called toyota corporate and they issued me a claim number as well as my insurance comp looking on line this problem seemed to happen to quite a few people can you please address this issue before more people get injured or worse its only by the grace of god that i am writing this to you this vehicle is now in storage at powder mill collision thankyou
TIRES (1 complaints)
TIRES
1 complaintYokohama 245/60r20 Geolander G96 that came with my brand new 2021 Toyota 4Runner Limited I purchased in December 2020. Over the last several weeks every 7 to 10 days I have needed to put air in all 4 tires. Then I was driving on a smooth paved street arriving at work my low pressure warning light came on. I got out and had a flat tire. I found the inner sidewall failed at only 28,000 miles. I didn’t hit anything on the road, or hit a curb etc. just normal driving on paved roads. Putting on the spare I took my 4Runner to the Toyota dealership a few miles away. The service technician at our local Toyota dealer today stated they, “are seeing this issue as a common problem with this particular tire on Toyota 4Runners in our Colorado Cold climate, is causing the rubber to become excessively brittle. Even with normal use, the smallest stones/sand used in our highway plows/sanding trucks cause catastrophic premature tire failure. They may be fine for use in California warm clients but not here in Colorado.” This explains why recently every 7 to 10 days I have needed to put additional air in all 4 tires. The rubber is prematurely becoming brittle/rot in cold weather thus not properly sealing the air. The technician recommended going with 4 new tires from a different manufacturer, stating the problem will continue with the other 3 Yokohama tires and likely a new Yokohama tire as well. He agreed the tire should be recalled as this is unacceptable especially for a tire with a M+S (mud and snow rating), only 28,000 miles on and properly taken care of. At $400+ per tire this is a huge expense and clearly a HUGE safety issue in cold climates. In cold weather having to refill tires with air every 7 to 10 days is a real hassle as well. Good thing I have my own air compressor at home. I only drive with the correct air pressure per my owners manual as stated on my drivers door. The Toyota dealer drew a white chalk square around the tire failure area.
When Do 2021 Toyota 4RUNNER Problems Start?
Based on owner complaint patterns, here's when common issues tend to appear.
Best & Worst Toyota 4RUNNER Years
Comprehensive reliability analysis based on NHTSA data, owner complaints, and historical performance.
Best Toyota 4RUNNER Years to Buy
Based on reliability index scoreThe best Toyota 4RUNNER year is 2023 with a reliability score of 82/100, rated excellent. Other strong picks include 2021 (82/100) and 2020 (82/100).
2023
2021
(Current Model)
2020
Toyota 4RUNNER Years to Avoid
No Toyota 4RUNNER years are statistical outliers in our data.
All model years score consistently well. The Toyota 4RUNNER maintains one of the highest industry standards for long-term durability across its entire production span.
Toyota 4RUNNER Reliability Score Trend
Toyota 4RUNNER reliability has remained consistent across model years, averaging 80/100.
Scores 0–100. Higher is better. Current year highlighted.
| Year | Score | Rating |
|---|---|---|
| 2018 | 77/100 | Good |
| 2019 | 77/100 | Good |
| 2020 | 82/100 | Excellent |
| 2021 | 82/100 | Excellent |
| 2022 | 79/100 | Good |
| 2023 | 82/100 | Excellent |
| 2024 | 79/100 | Good |
| 2025 | 81/100 | Excellent |
Toyota 4RUNNER Reliability Compared to Other Years
| Year | Score | vs Prior Year | Rating | Recalls | Complaints |
|---|---|---|---|---|---|
| 2026 | 81/100 (predicted) | — | Predicted | 0 | 0 |
| 2025 | 81/100 | +2 | Excellent | 1 | 36 |
| 2024 | 79/100 | -3 | Good | 1 | 8 |
| 2023 | 82/100 | +3 | Excellent | 1 | 28 |
| 2022 | 79/100 | -3 | Good | 3 | 36 |
| 2021(selected) | 82/100 | 0 | Excellent | 1 | 31 |
| 2020 | 82/100 | +5 | Excellent | 1 | 30 |
| 2019 | 77/100 | 0 | Good | 4 | 61 |
| 2018 | 77/100 | — | Good | 5 | 56 |
Frequently Asked Questions
Is the 2021 Toyota 4RUNNER reliable?
What are the most common problems with the 2021 Toyota 4RUNNER?
How many recalls does the 2021 Toyota 4RUNNER have?
Is the 2021 Toyota 4RUNNER expensive to maintain?
Don’t buy a 2021 Toyota 4RUNNER without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.
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How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent— Top-tier reliability, minimal issues
- 60–79: Good— Reliable with some minor concerns
- 40–59: Mixed— Notable issues, research before buying
- 0–39: Risky— Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
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