11 problems related to electrical system have been reported for the 2016 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Toyota 4Runner based on all problems reported for the 2016 4Runner.
I drive for a living and yesterday I was driving while this happened 3 separate times. I was going 70 mph on the highway when my radio, usb ports blower motor and dash cluster power went out. I was terrified that my car would shut off while driving. Upon checking the car over, I noticed the battery mount was broken/missing pieces. The upper portion had become lose due to the broken parts and had stuck itself to my positive battery terminal. Lots of sparks when I tried to remove it. I finally got it broke loose using a piece of wood instead of my hands. Very scary.
I have a 2016 Toyota 4runner at 143,011 miles. When it hit 125,000 mile mark the backup camera stopped working intermittently. The screen in the car goes blank. Turning the car on/off or changing gears does not affect this issue. It’s random and seems to becoming more frequent as more miles are put on. I will take it in however when I called them they said since it’s not a known issue I will have to replace it and it’s not cheap!.
Picked up a gal to go out on a date. Turned the vehicle on and got about 1 mile down the road when I started to smell , like a hot , burning electrical smoke . My date , sitting in the passenger seat says her seat is get warm , then says , it's getting really hot ! I looked at the seat warmer switch and noticed and said , weird , the switch isn't even on . Then the smoke became very apparent as we got onto the freeway and we were compelled to pull over as the electrical components or wiring were on the verge of catching fire , where the electic seat switch is located .
Rear view camera cuts out and screen goes black. Similar to the rav4 complaints.
The door lock actuator on the passenger side door is going out. This is clearly a common problem with this make and year model. Several reviews I have read state that this has been an issue specifically with the front driver and passenger doors. I'm not sure why there has not been a recall on this issue. This is obviously a manufacturer issue vs a owner/user issue. Toyota really needs to consider a recall because this is not a cheap fix.
Driver door actuator does not work, preventing the remote locking and unlocking of the door.
The contact owns a 2016 Toyota 4runner. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal. The contact stated that several unknown warning lights were illuminated. The vehicle was taken to a dealer where it was discovered that rodents had chewed through the soy-based wiring. The electrical wiring was replaced out of pocket; however, the failure had recurred twice. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 29,922.
The SUV does not lock when I use the remote or when I try to lock it manually. I replaced the actuator in the driver side door which was the door that stays unlocked however to no avail. I am out a lot of money however I now believe there may be a bigger problem with something called bcm. I do not want to spend more money getting the issue diagnosed and repaired. This feels unfair to me that the locking system is broke and I risk the vehicle being stolen at such a young age of the vehicle.
Toyota has a major safety issue (that they know about) relating to door lock actuators on their 4runners. Both of mine (passenger and driver side) failed within the first 55,000 miles, and there are a lot of others who have had the same problem. The forums are littered with people reporting. However, Toyota has discouraged people from reporting the problem to them by charging an exorbitant amount for repair of such an inexpensive item (about $800 per side). When that becomes known to owners, people will just repair the items themselves. This is obviously unethical. Door lock actuators pose an obvious safety issue, both if the door remains unlocked when it is supposed to be locked, and when the door remains locked when it is supposed to be unlocked. In the latter case, following an accident where a passenger is incapacitated and the door lock cannot be reached by hand (and there's no external key slot), the only way to unlock the door is via the electronic fob. If the door lock actuator is broken, then that incapacitated passenger will be trapped in the vehicle. For the former case - and this has personally happened to me - when the door was supposed to be locked, I had an individual actually open my passenger side door and enter into my vehicle. (he was under the influence of something, and fortunately nothing happened other than a very tense situation). But the safety issue remains. I expect that the post-accident scenario is more relevant to the NHTSA's interests, however, since a known design defect could very easily lead to the death of an individual trapped in a vehicle.
Door lock/unlock actuators are going out. Driver's side and now front passenger's side. This appears to be a prevalent issue on line, and nothing has been done. Replacing one costs $550.
I started the 4runner and noticed that a few of the warning lights were on (abs, brake, & a few others I can't remember). I decided to drive it anyway to run some errands (short distance), and noticed that the transmission was not shifting properly either (not going into eco mode and struggling to reach 40 mph). I decided to pull over into a parking lot and check under the hood. That is when I noticed a squirrel nested by the driver's side firewall. The squirrel also used the insulation from under the hood and along the firewall to make its nest. I took the 4runner to the dealership, and they also pointed out that one of the electric runs was chewed all the way through with some damage on the main harness. I let them keep the 4runner over night to get an estimate on the damage. The initial estimate was for $5,716. 30. I decided to let them keep the 4runner until the work was completed. I was informed that the electric harness would take 3 to 5 days to be shipped to the dealership. Then I was notified (6 days later) that the electric harness was not readily available and would take another week before they receive it. I recently received a phone call saying that all the parts were in, but now they would either have to remove the engine or raise the body to install the firewall insulation. So an additional $2,219. 66 for that portion of it. Sure my insure picked up the tab less my deductible, but this should not have happened. I dropped the 4runner off March 7, 2017 and was informed that it should be ready around April 5th. Hopefully nothing else is found. I purchased the 4runner brand new on February 4, 2017 (driveway kept). I traded in a 2006 Toyota tacoma that I had for 11 years that sat outside for this headache. Maybe I should have kept the tacoma. The 4 runner only had approximately 500 miles on it when this inconvenience happened.
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