2015 Toyota 4RUNNER Engine Problems
- Complaints
- 8about this part
- Share
- 9%of 87 total for the year
- Median mileage
- 24,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the engine of the 2015 Toyota 4RUNNER, 9% of the 87 complaints for this model year. Where a mileage was given, the median is 24,000 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I had 20,000 miles and bought the veichle brand new and went to leave work and my veichle was struggling to stay going and my check engine light was flashining. When I'd go to reverse the vehicle would struggle and act like it was going to die. I had to go 20mph on the side roads about 15 miles to the dealer. The RPM shouldn't shift. It was caused by a mouse I guess? Since they use soy base and see this a lot. So fustrating when you pay $38,000 for a veichle. I'd much rather drive my older 2010 honda that never had an issue with so called a mouse. They of course wouldn't cover it. …”
NHTSA complaint #10954958, filed 2017-02, 20,000 miles“The 4RUNNER hesitates at 40mph and 60mph when trying to coast/maintain speed with slight pressure on the gas pedal. At other speeds or while accelerating at 40/60mph there is no hesitation. I took it to the dealership, but they said they can't replicate the problem. It is still happening though.”
NHTSA complaint #11316218, filed 2020-03, 20,000 miles“Approaching stop lite (40mph.) applying brakes,accelerator went up to 3000 RPM,s with brakes applied.pumped brakes finally rpms came down.there is nothing blocking accelerator(floor mat). Separate incident same day backing out of parking spot went into traction control mode with brakes vibrating and clicking on dry pavement.”
NHTSA complaint #10713171, filed 2015-04, 2,505 miles“My husband parked the car on a hill in front of a gas station and I stayed in the car sitting on the passenger seat and it just rolled down the hill, caused an accident to a parked car getting gas, I jumped out of the car as it rolled towards a gas pump , slammed on to pump guard. Thankfully no one was hurt but me when I jumped out of the car.police report filed”
NHTSA complaint #11194428, filed 2019-04“My transmission went off with no warnings and my vehicle has been serviced at the Toyota dealer since I bought it and they never mentioned to me there was an issue with my transmission which is very odd. So I was wondering is this is normal or if there others owners with the same problem. Now I don’t have a vehicle because the transmission is in back order and I can’t even get a rental car because it wasn’t an accident or a recall. So I would like for you to look into this issue for this Toyota model.”
NHTSA complaint #11660130, filed 2025-05Related service bulletins
- 11005119Jun 19, 2024This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
- 11005061Jun 19, 2024This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 – 2025 model year Toyota vehicles.
- 10164330Jul 1, 2019TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections…
- 10164329Jul 1, 2019TSB: Some 2014 ? 2019 model year 4Runner vehicles may exhibit a whine or groan noise from the rear of the vehicle. This condition may occur while driving around 40 ? 60 mph at a…
- 10152138Aug 18, 2017TSB: Some 2014 ? 2016 model year Highlander HV, 2015 Tacoma, 2015 ? 2016 Venza, 2015 ? 2017 4Runner, Avalon, Camry, and 2016 ? 2017 Avalon HV and Camry HV vehicles may exhibit a…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 2 | 3% |
| 2024 | 1 | 10% |
| 2023 | 2 | 6% |
| 2022 | 1 | 3% |
| 2019 | 6 | 9% |
| 2018 | 5 | 8% |
| 2017 | 2 | 6% |
| 2016 | 6 | 7% |
| 2015 | 8 | 9% |
| 2014 | 6 | 8% |
| 2013 | 3 | 8% |
| 2012 | 5 | 5% |
| 2011 | 6 | 4% |
| 2010 | 3 | 2% |
| 2009 | 2 | 9% |
| 2008 | 7 | 7% |
| 2007 | 3 | 2% |
| 2006 | 7 | 2% |
| 2005 | 21 | 5% |
| 2004 | 18 | 3% |
| 2003 | 10 | 1% |
| 2002 | 5 | 2% |
| 2001 | 5 | 3% |
| 2000 | 4 | 1% |
| 1999 | 3 | 1% |
| 1996 | 1 | 1% |
| 1995 | 8 | 5% |
| 1994 | 1 | 2% |
| 1992 | 1 | 2% |
| 1990 | 1 | 1% |
Other parts of the 2015 Toyota 4RUNNER
17 complaintsOther or unknown
14 complaintsElectrical system
13 complaintsFuel system
10 complaintsSuspension
10 complaintsSteering
8 complaintsBody and structure
8 complaintsVehicle speed control
8 complaintsBrakes
4 complaintsTransmission and drivetrain
4 complaintsElectronic stability control
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaints
← All problems reported for the 2015 Toyota 4RUNNER
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology