Home · 2023 Toyota 4RUNNER Hybrid · Complaints
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
2 of 30 complaints match · Brakes · clear filters
New, strange noise started in Dec'25 (41K miles; 2yrs 9 months). No warning lights. Diagnosed as failed brake accumulator (first at an independent shop, later at the dealer). Apparently the accumulator is part of the full master cylinder assembly which must be replaced. Toyota has quoted $3,200 to complete this repair and is telling me it must be out of pocket.
NHTSA ODI 11739260
The contact owned a 2023 Toyota 4Runner. The contact stated that while the husband was driving approximately 35 MPH, the brake pedal was depressed but the pedal became stiff and did not slow down as intended. As a result, the contact collided with two vehicles. The air bags deployed. The driver sustained shoulder, back, and forearm injuries. Medical attention was needed. The contact stated that the two other vehicles involved needed medical attention. A police report was filed. The vehicle was taken to a wrecking lot. The manufacturer was not notified of the failure. The failure mileage was approximately 9,000.
NHTSA ODI 11551453
Working with the data? Download all 30 complaints as CSV · fetched from NHTSA July 21, 2026