2018 Toyota 4Runner Problems

Half of the owners who gave a mileage had the problem by about 1,000 miles.

What to check before you buy

• Turn the wheel lock to lock while parked and listen for groaning, clicking or binding.
• On a straight road the car should track straight with the wheel centered and no loose feeling.
• A power steering warning on the dash, even briefly, deserves a mechanic’s look before you buy.

Tools that help

What owners said

There was a clunking noise coming from the front end when steering. Got worse over time. Also had a vibration in the front end at speeds above 45 mph. Dealer recommended replacement of upper steering column shaft assembly and dust boot cover along with lower intermediate steering shaft. The manufacturer knows about this problem because…Owner complaint, filed 2023

Vehicle steering shakes between 60-65 mph. After 4 different sets of tires in 3 weeks, multiple road force balances, tire rotations, an alignment, an alignment checks, brakes checked, a “visual inspection” of suspension components from two Toyota dealerships, the vehicle continues to vibrate at highways speeds.Owner complaint, filed 2021

What to check before you buy

• Smell around the engine bay and under the rear of the car for raw fuel.
• On the test drive, accelerate firmly from a stop and up a grade. Stumbling, surging or a flashing check engine light are red flags.
• Fuel pump recalls are common. Check this exact VIN for open recalls before you buy.

Tools that help

What owners said

Vehicle was parked in garage. Inspecting vehicle at 22:00, noise was heard. Source of noise was fuel pump located behind drivers side rear tire. Garage smelled of gasoline. Vehicle was turned off at 15:00 that day. Started up Vehicle with no issues and let run for 1.5 minutes then turned off. Noise was still present until Vehicle was…Owner complaint, filed 2024

The contact owns a 2018 Toyota 4Runner. The contact stated while driving approximately 25 MPH, the vehicle stalled. The traction control and check engine warning lights were illuminated. The vehicle was towed to a local dealer to be diagnosed. The contact was informed that the fuel pump needed to be replaced. The vehicle was not…Owner complaint, filed 2022, at 30,500 miles

What to check before you buy

• The pedal should feel firm and the car should stop straight without pulling, grinding or a pulsing pedal.
• The ABS and stability control lights should go out after startup and stay out.
• Look through the wheels at the rotors. A deep lip on the edge means brakes are due soon, which is a fair thing to negotiate on.

Tools that help

What owners said

On [XXX], my husband was driving our 2018 Toyota 4Runner Limited home from Coventry, CT, with me in the passenger seat. At the second-to-last STOP sign on our route, a yellow slip indicator light suddenly appeared on the dashboard. We did not know why. We wondered if we had accidentally touched a control near the steering wheel. The…Owner complaint, filed 2026

While attempting to stop vehicle for a traffic light brake pedal suddenly goes almost to the floor. This occurrence is random and unpredictable. No dash lights or messages come on indicating any problem. Brake master cylinder is at the proper level and no signs of leakage. The vehicle has not yet been inspected by any technicians.…Owner complaint, filed 2024

Half of the owners who gave a mileage had the problem by about 10,000 miles.

What to check before you buy

• The air bag (SRS) light should come on at startup and go out within a few seconds. If it stays on, the system may not work in a crash.
• Air bag recalls are some of the most serious. Check this exact VIN for open recalls and get proof any recall work was done.

Tools that help

What owners said

My vehicle was in a collision at 55 miles an hour. Hit 3 grown cows in the highway at nighttime. Totaled my vehicle in the airbags, never deployed period Turn off.Owner complaint, filed 2024

I was driving on the freeway when I came upon a deer just standing there. I swerved to avoid hitting it and hit the guardrail at approx 60mph.Owner complaint, filed 2019, at 9,600 miles

What to check before you buy

• Ask the seller not to warm the car up, and start it cold. Listen for ticking, knocking or a rough idle in the first minute.
• Pull the oil dipstick and the oil cap. Low oil, a gasoline smell or a milky film on the cap are reasons to walk away or get an inspection.
• Plug in an OBD2 scanner. Stored or pending codes matter, and so do readiness monitors that show "not ready", which usually means the codes were cleared right before the sale.
• Ask for oil change records. A gap in the records on a model known for engine complaints is a negotiating point at minimum.

Tools that help

What owners said

Two transfer case seals failed at 64,000 miles. Caused excessive oil to leak out of transfer case and onto the exhaust. Safety was put as risk by potential full failure of transfer case which can cause loss of power at speed or leaking oil on exhaust causing a fire. Problem was verified by Armstrong Automotive and repaired. No warning…Owner complaint, filed 2024

The contact owns a 2018 toyota 4runner. The contact stated that while driving a popping noise occurred that was coming from the engine. The vehicle started to decelerate. The vehicle started making an abnormal sound that was coming from the engine. The vehicle then was able to drive normal. The air bags warning light illuminated. The…Owner complaint, filed 2020, at 47,000 miles

Half of the owners who gave a mileage had the problem by about 15,000 miles.

What to check before you buy

• Look underneath with a flashlight. Utah road salt is hard on frames, brake lines and the bottoms of doors.
• Open and close every door, the hood and the liftgate, and lock and unlock each one.
• Use a paint thickness gauge and compare panels. A panel that reads very differently from the rest has likely been repaired.

Tools that help

What owners said

The contact owns a 2018 Toyota 4Runner. The contact stated that the frame holding the radiator of the vehicle was severely rusted. The vehicle was taken to the dealer where it was diagnosed that the radiator frame was corroded; however, the dealer applied paint to the structure instead of replacing the part under warranty. The contact…Owner complaint, filed 2022, at 13,290 miles

We purchased a new 2018 toyota 4runner with VIN [xxx] in late 2017. In october of 2019 we noticed that the bumper kept separating from the body of the vehicle. At that time the vehicle had 31k miles. Jim hudson toyota tried to fix it. The bumper is held on by small clips that come loose while driving. They said it was a known defect but…Owner complaint, filed 2020, at 31,000 miles

What to check before you buy

• Test every switch: windows, locks, mirrors, seat heaters, the screen, the backup camera, Bluetooth and every USB port.
• Watch the dash at startup. Every warning light should come on briefly and then go out.
• Have the battery and charging system tested. A weak alternator or battery drain shows up here.

Tools that help

What owners said

Odometer Fraud. The contact purchased a 2018 Toyota 4Runner. The contact discovered that there was a mileage discrepancy per a Carfax report. The vehicle was a dealer sale. At the time of the purchase, the vehicle mileage was 65,862. However, the Carfax report indicated that the mileage was 61,000 in April 2022; 90,000 in February 2023…Owner complaint, filed 2026, at 86,000 miles

Apparently rodents have gone to the engine and ate the soy wires to the harness. This in turn has cost me over $1000 to fix. The only warning was when the warning lights came on and four runner started to shake when started.Owner complaint, filed 2024

What to check before you buy

• Drive over a few bumps and potholes slowly with the radio off and listen for clunks or rattles.
• Check the tires for uneven wear on the inside or outside edges, a sign of alignment or suspension trouble.
• Look behind the wheels for oily, wet shocks or struts.

Tools that help

What owners said

The front shock springs cracked and snapped due to cold weather. I have been waiting for 2 months for the replacement parts and cannot drive my vehicle. The parts are 4 months out on a waiting list. The vehicle is not safe to drive. The dealer has inpected the vehicle and said it is not safe to drive for safety reasons. There were no…Owner complaint, filed 2024

this vehicle was purchased from Don Chalmers Ford in Rio Rancho on 1129, 2025, upon purchasing a 2018 Toyota foreigner Limited I traded in a 2020 Acura RDX with only 50,000 miles. The salesman seemed to trustworthy. He showed me the Carfax Clean had no accidents no recalls then I receive some paperwork stating this vehicle is eligible…Owner complaint, filed 2026

What to check before you buy

• Drive it from cold if you can. Shifts should be smooth in every gear, including reverse.
• Feel for slipping (revs rise without the car speeding up), shudder at low speed and a delay when you put it in gear.
• Listen for whining, which is a common CVT complaint, and clunks when you go from drive to reverse.
• If it has 4WD or AWD, engage it on the test drive and ask when the transmission and differential fluids were last changed.

Tools that help

What owners said

The front differential in our 2018 Toyota 4Runner failed. This caused damage to one of the front axels of the vehicle. The failure can cause difficulties in turning the vehicle. The failure can lead to catastrophic failure of the axels, leading to the wheels to lock up. The problem is reoccurring in model years 2016-2019. Toyota is aware…Owner complaint, filed 2022

While my father was exiting his 2018 Toyota 4Runner SR5, the vehicle unexpectedly started reversing fairly quickly, despite no foot being on the brake. He was dragged by the vehicle while attempting to stop it outside the car, and it continued moving backwards then down a hill before crashing into a fence, causing significant damage to…Owner complaint, filed 2025

What to check before you buy

• Check every light: headlights on low and high, fog lights, brake lights, turn signals and reverse lights.
• Run the wipers on every speed with washer fluid, and run the defroster front and back.

Tools that help

What owners said

The windshield is cracking without the [VIN] being so high. The vehicle was parked but turned on, when we turned on the heat and drove it for a little bit (6 miles) we noticed the windshield cracking and we turned off the heat. [VIN] was at 40 degrees the lowest.Owner complaint, filed 2018, at 3,023 miles

The contact owns a 2018 toyota 4runner. The contact stated that while driving 55 MPH, the vehicle stalled without warning. Additionally, the brake lights were inoperable. The contact received notification of NHTSA campaign number: 20v682000 (fuel system, gasoline). A dealer was not contacted. The [VIN] was contacted in regards to…Owner complaint, filed 2020, at 25,000 miles

What to check before you buy

• On the test drive, press the gas gently and firmly. The response should be smooth with no lag or surge.
• Set the cruise control, then use resume and cancel to make sure each one works.

Tools that help

What owners said

While my father was exiting his 2018 Toyota 4Runner SR5, the vehicle unexpectedly started reversing fairly quickly, despite no foot being on the brake. He was dragged by the vehicle while attempting to stop it outside the car, and it continued moving backwards then down a hill before crashing into a fence, causing significant damage to…Owner complaint, filed 2025

Vehicle was being driven on beltway and suddenly lost all power, braking, and steering capabilities. Emergency brake was used to stop vehicle. Vehicle was not able to be restarted. Phone attached via cigarette outlet was zapped. [VIN] has failed to assume any responsibility customer has endured due to this total vehicle malfunction.Owner complaint, filed 2021, at 8,000 miles

What to check before you buy

• Pull out and latch every seat belt, and let each one retract on its own.
• Try every seat adjuster, and watch for a passenger air bag "off" light when an adult is in the seat.

Tools that help

What owners said

New vehicle discovered to have rusting seat rails and seat belt [VIN]. Local toyota service center said they have never seen such a problem on a new vehicle and recommended immediately replacing all seats. However, toyota regional reps after only doing a visual inspection decided the rust 'does not compromise the seats integrity at this…Owner complaint, filed 2019

What to check before you buy

• Read the four-digit DOT date on each tire. Tires older than about six years should be replaced, whatever the tread looks like.
• Check tread depth on all four. On AWD vehicles all four tires should match.
• The tire pressure light should go out after startup.

Tools that help

What owners said

Yes tire is available Tire has bad spot on sidewalk goes all the way to belt Looks like this tire might blow out which could cause crash Tuscaloosa Toyato first noticed it at our 30,000 mile maintenance service on June 9 2021 No inspection yet No warning have no ideal how long been like thisOwner complaint, filed 2021

Steering wheel vibrates between 55-65 MPH. Vehicle feels unstable until it reaches aprox 70 MPH. Taken to dealer 3 times. They balanced the front wheels, but issue returns everytime, 2-3 weeks later. Toyota says it is normal. Cannot be normal for a brand new car, with new tires. Multiple owners report issue happening in multiple websitesOwner complaint, filed 2018, at 10 miles

What to check before you buy

• Where it is safe, try the adaptive cruise and lane keeping on the test drive and watch for sudden braking or warnings with nothing there.
• Check the windshield in front of the camera and the bumper sensors for cracks, chips or poor repairs.
• Ask whether the windshield has been replaced. The camera has to be recalibrated afterward, and many shops skip it.

Tools that help

What owners said

My 2018 4runner stalled 12/12 amidst my having made a turn out of my drive way and commencing acceleration of the vehicle. My speed couldn't have been in excess pn 20 MPH. I did not loose electrical functions. The vehicle simply lost mobility. I shifted the vehicle to neutral and juggled the accelerator and regained acceleration, without…Owner complaint, filed 2020, at 28,800 miles