4Runner (N290)
Data covers 2 NHTSA model names
Reliability Score
Complaints by Engine Code
T24A-FTS
2.4L 4-cyl / 278 hpView details
Complaint Breakdown
Battery & Propulsion Reliability
Hybrid (HEV)
Battery & propulsion complaint analysis for the 2025-2026 Toyota 4Runner
Too few field reports to rate this generation against peers yet. Most recently launched models accumulate complaints over the first 2-3 years.
What kind of battery complaint?
Among the 4 battery-related complaints, here's the type mix. These percentages describe what the complaints are about — not how reliable the vehicle is overall.
Loss of power, drive unit, inverter, traction motor, DC-DC converter.
Propulsion battery defects, capacity loss, BMS faults, replacement claims.
Hybrid system warnings, eCVT, motor-generator, hybrid transaxle.
Sample complaint excerpts
Electric Propulsion
- [2025] The contact owns a 2025 Toyota 4Runner. The vehicle lost motive power while attempting to access the freeway on three occasions. The reduced power mode message was displayed. The vehicle was taken to the local dealer, and initially they were unable to determine the failure. The vehicle was taken to the local dealer again, where it was diagnosed that the sensor needed to be cleaned. The vehicle was
- [2026] At approximately 520 miles, while performing a low speed left hand turn, the vehicle experienced a sudden mechanical "thunk" in the drivetrain followed by an immediate loss of motive power (Limp Mode) in my new 2026 Toyota 4Runner TRD Pro. The engine revved significantly, but the vehicle failed to accelerate as intended, creating a hazardous situation in the intersection of oncoming traffic. A di
High-Voltage Battery
- [2025] The contact owned a 2025 Toyota 4Runner. The contact stated that while driving at an undisclosed speed, the contact observed a large piece of debris in the roadway. The contact stated that traffic ahead was maneuvering erratically to avoid the debris, causing the contact to lose control of the vehicle. As a result, the vehicle left the roadway, struck several trees, and then collided with a brick
Hybrid Drivetrain
- [2026] The car has the iforce max powertrain. At low speeds or in stop and go traffic, when the car has come to a stop, the car will lurch forward, which could potentially cause an accident. I took car to dealership and they said this is normal operation of the hybrid system and there is no fix. This is a huge safety issue if the car pushes itself forward and potentially causing an accident. The transmis
Source: classified from NHTSA complaint and recall data. "Battery-related" includes high-voltage propulsion battery, charging system, hybrid drivetrain, electric propulsion, regenerative braking, 12V auxiliary battery, and thermal-event complaints. Other complaints (suspension, steering, brakes, infotainment) appear in the engine and vehicle-level sections. Rates are absolute counts, not normalized per-VIN — high-volume models naturally produce more raw complaints than low-volume ones. Self-reported death and injury counts are capped per complaint to limit form abuse.
Battery: Toyota i-FORCE MAX hybrid pack (1.87 kWh NiMH)
Pack overview
Known issues
How this pack ages (industry context)
Industry fleet aggregates: 2.3% average annual capacity loss across 22,700 EVs / 21 models (Geotab, 2026), and 95% range retention at 5 years on average across 30,000+ vehicles (Recurrent, 2026).
OEM warranty floor on this pack: 10 yr / 150k mi.
Public per-pack degradation curves are not available for most models. Individual results vary materially with climate, charging behavior, and DC fast-charge frequency.
Owner Complaints by System
Complaints owners filed with NHTSA about the Toyota 4Runner, counted across every engine. A complaint can name more than one system.
What to check on a used 2025-2026 Toyota 4Runner
On a used 2025-2026 Toyota 4Runner, the systems with the most NHTSA owner complaints are the brakes (25), the electrical system (8) and the airbags and driver-assist systems (7). Each one has an inspection step below, with counts as of 2026-10-12. A complaint is an owner report, not a confirmed defect, and counts rise with sales.
- On an empty road, brake firmly from 40 mph with a light grip on the wheel.Safety. NHTSA has 25 owner complaints on the 2025-2026 Toyota 4Runner about the brakes.
- Switch on every electrical item in turn: lights, windows, locks, wipers, climate fan, screen and power outlets.Costly repair. NHTSA has 8 owner complaints on the 2025-2026 Toyota 4Runner about the electrical system.
- Switch the ignition on and watch the airbag light. On the drive, check the backup camera and any collision or lane warning.Safety. NHTSA has 7 owner complaints on the 2025-2026 Toyota 4Runner about the airbags and driver-assist systems.
Recalls (3)
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2024 Toyota Tacoma Hybrid, 2025 Tundra Hybrid, Tundra, 2026 RAV4 Hybrid, 4Runner i-Force Max Hybrid, and 4Runner vehicles. The load carrying capacity modification label may display inaccurate added weight values. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
Gulf States Toyota, Inc. (GST) is recalling certain 2026 4Runner vehicles. The load carrying capacity modification label states the incorrect load carrying capacity. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 110, "Tire Selection and Rims."
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023-2024 Toyota Venza, 2023-2025 RAV4 Prime, RAV4, Highlander, GR Corolla, Crown, 2024-2025 Lexus TX, LS, Toyota Tacoma, Grand Highlander, and 2025 Lexus RX, Toyota Crown Signia, Camry, RAV 4 Plug-in Hybrid (PHEV), and 4 Runner vehicles. Due to an error in the instrument panel software at vehicle startup, the instrument panel may fail to display vehicle speed, brake system, and tire pressure warning lights.
NHTSA Safety Ratings About NHTSA ratings
All Generations
Alternatives in Midsize SUV
Frequently Asked Questions
What are the most common 2025-2026 Toyota 4Runner complaints?
Owners have filed 64 complaints with NHTSA about the 2025-2026 Toyota 4Runner. The systems they name most often are the brakes, the electrical system and the safety systems.
Is the 2025-2026 Toyota 4Runner a good used car?
That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 64 complaints with NHTSA about the 2025-2026 Toyota 4Runner. Check which systems they name most often and whether a recall is still open on that car.
How many NHTSA complaints does the 2025-2026 Toyota 4Runner have?
NHTSA has 64 owner complaints on file for the 2025-2026 Toyota 4Runner as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.
What recalls affect the 2025-2026 Toyota 4Runner?
NHTSA lists 3 recalls covering some 2025-2026 Toyota 4Runner vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.
What should I check before buying a used Toyota 4Runner?
Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the brakes, the electrical system and the safety systems, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.
What are the NHTSA crash test ratings for the 4Runner?
The 2026 Toyota 4Runner received an overall 4-star safety rating from NHTSA. Frontal crash: 4 stars. Side crash: 5 stars. Rollover: 3 stars (20.4% rollover probability). Electronic Stability Control: Standard. Forward Collision Warning: Standard. Lane Departure Warning: Standard. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.
Data from NHTSA federal complaints database. 64 complaints analyzed. Data confidence: moderate. Last updated: 2026-10-12.