really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
9,010 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2018 Toyota Highlander engine problems

engine problem

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2018 Toyota Highlander Owner Comments

problem #5

Oct 102023


  • miles


My relatives remembered the 2002-2011 recall of 80,000 Toyotas, 90 deaths due to unintended acceleration and said that seems exactly what happened to me last month. NEAR FATAL COLLISION DUE TO STICKY PEDAL 2018 Toyota Highlander 10/10 Slowly backed out of parking space in large, empty commercial lot: sunny day, 3pm ?'? Tapped pedal into Drive ?'? Car sped off at 50+mph with my foot off pedal ?'? Sped around lot for approximately 3minutes ?'? Holding brake down and down-shifting did nothing except cause sheer terror with my uncontrollable vehicle ?'? Hit pole and vehicle came to a stop after near-complete destruction of passenger-side bumper ?'? No injury except sheer mental terror ?'? No witnesses DO NOT Blame the victim. Dealer says all-weather floormat could never have been or be involved.

- Huntington Beach,, CA, USA

problem #4

Jan 132020

Highlander 6-cyl

  • 14,800 miles
Problems with my 2018 Toyota Highlander ([xxx]) 1 ) lane depart indicator:sometimes doesn't work until I've driven 1 or 2 or 4 miles. Sometimes in every trip stops working as well as activates when maybe a foot from lane markers on both sides of the car 2) climate control: Usually does not retain memory of fan speed, control of passenger side temp, and air flow direction when restarting the car. When temp set on, e.g. 69 temp in car is ~76-80. When airflow shows the flow aimed at windshield & feet, most of the air flow comes to my torso with minimal flow to other 2 sites. 3) need coffee break message: Has come on twice when on a long trip, disappearing after ~ a minute, but several times came on after driving only 2-4 miles. 4) faulty resumption of speed: When the speed control was set at 50 mph (once) or 60 mph (once) and I toggled the control to resume set speed the car sped up well beyond what it was set at. I had to disengage the speed controller to stop the acceleration. Happened again ~3 weeks ago when speed set at 35, and when I toggled it resume speed it roared ahead until it reached 45 mph. 5) door handle locking mechanism; not as sensitive to locking when touched as it was when car was new. Unlocking when touching handle works fine. 6) motor turnoff when at stoplight: Seldom works. When it does it turns itself off after as little as 30 seconds even tho pressure on brake pedal is constant. 8) (non-electronic problem) the transparent plastic cover over the dash control settings is deteriorating - - can?T see thru it very well in certain ways the light hits it 9) speedometer reading problem: When cruise control is working, the digital readout for the speed is usually 1-2 mph lower than what the speedometer dial says it is. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Seabeck, WA, USA

problem #3

Mar 132018

Highlander 6-cyl

  • 3,450 miles
The contact owns a 2018 Toyota Highlander. While driving various speeds and depressing the accelerator pedal, the vehicle would not immediately respond. Approximately two seconds after depressing the accelerator pedal, the engine revved and the vehicle abruptly accelerated forward. The vehicle was taken to conicelli Toyota (550 w. ridge pike, conshohocken, pa) on several occasions, but no failure was found. The contact stated that the failure continued. The manufacturer was notified. The failure mileage was 3,450. The consumer stated the vehicle was taken back to the dealer 6 times for the same defect.

- Lafayette Hill, PA, USA

problem #2

Mar 182019


  • 14,800 miles
Apon acceslaration, car hesitate for a few second, RPM goes to 5000 until vehicle slowly start to move. Feels likew ther is no proper synch between enging and transmission. Dangerous when passing or avoiding a vehicle ahead of you. The same issue while using the cruse control, it jumps from a few rpms to 5K + that always I have to brake to avid ramming a car ahead of me. Brakes get sof that I have to pump it a few times. Mileage is 1780 miles.

- Glenn Heights, TX, USA

problem #1

May 222018


  • 12,000 miles
The contact owns a 2018 Toyota Highlander. While driving 55 mph, another vehicle pulled in front of the contact's vehicle in inclement weather and splashed water onto the front end of the vehicle. As a result, the cruise control malfunctioned and the contact's vehicle experienced unintended acceleration. The failure occurred without warning. The dealer (peruzzi Toyota, 2601 bethlehem pike, hartfield, pa) was called and a diagnostic appointment was scheduled. The manufacturer was not notified of the failure. The failure mileage was approximately 12,000.

- Dublin, PA, USA

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