Toyota 4RUNNER jerking problems

Filed Aug 10, 2026 · Electrical · 300 miles · IL

The contact owns a 2026 Toyota 4Runner. The contact stated that on several occasions while driving at various speeds, after disconnecting the trailer wiring harness, the message Tow/Haul Mode or a Trailer Coverage Indicator appeared even though the vehicle was no longer hauling the trailer. The message "No Trailer Detected" was occasionally displayed. The contact stated that the indicator deactivated, and the lane assistance and emergency steering feature were displayed while driving. The Lane Assistance, and the wheel did not vibrate or jerk into the correct position. Additionally, the blind spot monitoring system failed to detect vehicles in the blind spot. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a complaint was filed. The failure mileage was 300.

Filed Feb 3, 2026 · Driver assistance, Transmission · UT

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 transmission system is very unrefined.

Filed Oct 1, 2024 · Body, Suspension · 31,500 miles · FL

The contact owns a 2019 Toyota 4Runner. The vehicle was taken to a local dealer where it was discovered that the undercarriage was rusted. The vehicle was not repaired. The contact stated while driving at an undisclosed speed and making a left turn, the vehicle jerked and almost crashed into another vehicle. The contact was able to regain control of the vehicle and pulled over the shoulder of the roadway to inspect the vehicle. The contact noticed that the shock absorber brackets were rusted. The vehicle was taken to a local dealer where it was diagnosed that the shock absorber, carrier differential, gasket, gasket plug, and bearing needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was made aware of the failure. The failure mileage was approximately 31,500.

Filed Nov 2, 2023 · WA

I was driving down the road with no other cars in front or behind me and no impact was made on my sunroof when it just spontaneously exploded. The noise was so loud I jerked my wheel and almost crashed into a ditch. Large chunks of glass and tiny glass slivers were all over myself and my car and my ears were ringing.

Filed Dec 20, 2021 · Electrical, Engine · PA

My 2019 Toyota 4Runner was inhabited by a rat that chewed the wiring harness in at least 3 different areas. The damage occurred between 8pm and 7am. The vehicle started with lights on the dash illuminated. The car was out into drive and was jerking. Reverse had the same result. After inspecting under the hood of the car wires were seen chewed partially and a few completely severed. A rat was seen under the manifold cover. I used an air hose to evict it and had the car towed to dealership. The bill was just under $1000 to repair. I was warned it could have been worse ($6000) if harness needed changing. I was told “I was lucky”. After researching I discovered this is a problem because of soy based wiring. It’s an attractant for rodents.

Filed Apr 5, 2021 · Fuel system · 2,200 miles · OR

Tl* the contact owns a 2019 toyota 4runner. The contact received notification of the federal safety agency campaign number: 20v682000 (fuel system, gasoline) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The contact stated while driving at various speeds, an unknown warning light illuminated. The vehicle started jerking, loss motive power and failed to respond with the accelerator pedal was depressed. The vehicle was taken to gresham toyota (950 ne hogan dr, gresham, or 97030, (503)667-1135) to be diagnosed however, the mechanic was unable to duplicate the failure. The failure recurred. The contact felt unsafe driving the vehicle. The manufacturer was notified of the failure and confirmed that the part was not yet available. The failure mileage was approximately 2,200. Vin tool confirms parts not available.

Filed Nov 27, 2019 · Brakes · OR

The breaks pulse when your stopping and there have been two instances when I experienced the breaks unexpectedly went out or slipped...it's hard to explain exact feeling but it was scary. The traction control light came on when I was at a stop sign at a slight hill and the breaks made a strange noise this happened twice however the light only came on the one time. Then while driving the ABS, traction, break, and another light all came on at once. This was just random while driving normally. About 20min later they went out. Also while setting at the light or being stopped while in great the car pushes forward while the break is depressed. These things fave been random when the breaks felt as if I had lost them I was turning a corner and stepped on the breaks while in the turn they made a slight noise and I let up when I felt as if I was losing them then depressed again. The second time it happened I was in a normal straight road and depressed the breaks and again it felt as if I had lost them...I jerked a little as it scared me being in traffic then I let up and depress them again and if felt normal. Again it has been totally random. Also my tire pressure light comes on quite frequently and I keep losing a little pressure in all tires.

Filed Feb 25, 2019 · 135,000 miles · NH

I noticed that the frame of my 06 4runner has begun to corrode severely. There are holes in the frame that pose a severe safety threat and I'm concerned that the whole frame could give out at any time. Toyota recalled tacoma's from the same timespan due to frame issues yet the 4runners were left off... The truck is in pristine condition besides the undercarriage of the vehicle. Toyota should be held liable and recall them before lives are lost. The suspension definitely doesn't feel right and when bumps or potholes in the road are hit the vehicle feels as if it's being jerked from side to side. Please continue your investigation on the frames of the 4runners and get toyota to recall them.

Filed Jan 19, 2019 · Body · 181,000 miles · KY

I was driving my 4runner at about 20 miles per hour when it suddenly jerked to the right. I stopped and got out to see the frame had rotted apart and one of the suspension bar mounts had dropped. Luckily no one was hurt. I contacted toyota and they said there was nothing they could do for me.

Filed Jan 12, 2019 · Body, Suspension · 181,073 miles · CT

I was driving the vehicle and normal highway speed on the interstate. When I let off the accelerator, the vehicle lurched to one side, causing the vehicle to cross into the other lane. When I applied the accelerator again, the vehicle lurched in the other direction, requiring me to apply corrective action to maintain control. Upon inspection, the passenger side rear suspension link support had mostly separated from the frame due to rust. I can bend it back and forth with my hand. I have not driven the vehicle since due to safety concerns. It is difficult to control the vehicle, especially a highway speed.