There are 2 owner-reported engine complaints for the 2022 Toyota 4Runnerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I am writing to formally report a concerning issue with my 2022 Toyota 4Runner, which currently has approximately 22,000 miles. The vehicle is regularly serviced at a certified oil change facility, and during routine use, I noticed a puddle of oil forming in my driveway. Upon contacting the service center, I was advised to bring the vehicle in for inspection. The technician identified a crack in the OEM plastic oil filter housing, which was causing engine oil to leak. I was informed that this is a known issue the technician has encountered on multiple Toyota vehicles equipped with the same plastic housing. To resolve the issue, I purchased a replacement OEM aluminum oil filter housing, which the technician installed. Since the replacement, the oil leak has ceased, and there have been no further incidents. I am concerned that the original plastic oil filter housing may be defective or prone to premature failure, potentially leading to engine damage or safety hazards. I respectfully request that this issue be investigated and considered for a recall or service bulletin, as it may affect other Toyota owners.
The contact owns a 2022 Toyota 4Runner. The contact stated that while driving at an undisclosed speed on the freeway, the vehicle lost motive power. The 4WD error and various other unknown warning lights and messages were illuminated. The contact managed to pull over and stated that smoke was seen coming from underneath the hood and that once he opened the hood, there were flames coming from the airbox, and he pulled out the air filter. The contact stated that he managed to extinguish the fire. The fire department arrived after the fire was extinguished, and there was no report completed. The vehicle was then towed to a local dealer; however, the mechanic made the contact aware that the manufacturer would send out an inspector. The inspector made the contact aware of a faulty unknown sensor; however, the vehicle remained at the dealer awaiting further diagnosis and repairs. The manufacturer was made aware of the failure. The approximate failure mileage was 47,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026