Other Fuel System Problems of Toyota Highlander - part 1

Today (8/26/2025) my wife experienced the engine light kicked on and that the awd system needed to be checked. After fueling up it made knocking noises and difficulty starting, and took two times to start up. Ran an obd scan and this is what it says, which is related to fuel pump low pressure. P117b - fuel pressure sensor circuit range/performance severity - high description - indicates a problem with the fuel pressure sensor circuit, where the sensor's output signal is outside the expected range or performance criteria, leading to potential issues with fuel delivery or engine performance. P0174 - system too lean (bank 2) severity - high description - your engine is getting too much air and/or not enough fuel, this is known as a "lean" condition. Excess oxygen is getting into your engine, which makes the combustion process less efficient. This could be caused by many different factors. Consequences of continued driving - reduced power, engine knocking, rough idle.

See all problems of the 2017 Toyota Highlander 🔎.

Entering the freeway a mile from home the car would not properly excellerate, only reachind 40 mph before exiting the freeway in favor backroads to my appointment. Shaking back and forth while driving, exacerbated when braking and coming to stop, I needed to put the car into neutral to calm down the shaking while waiting for the light to change. I just went through experiencing a brake failure and reporting of that to this agency and now see another of many defects associated with the 2020-2022 Toyota Highlanders and siennas Toyota is not addressing through recalls as they should be, and further frustrated this agency has or chooses to have no means by which to enforce Toyota's responsibility to the public.

See all problems of the 2021 Toyota Highlander 🔎.

I just found out that there was an initial recall #20v012000 and an expanded recall #20v682000 on my 2018 Toyota Highlander that I was unaware of regarding the low-pressure fuel pump inside the fuel tank could fail risking engine stalling and potential crash. I found this out after paying 1100. 00 to sheehy Toyota in fredericksburg to replace the fuel pump. I reported it to Toyota brand services for reimbursment and was told that it was not a recall it was a csp (which to them is different they said) and that the fuel pump that I had replaced was a low pressure fuel pump and the csp was for a high pressure fuel pump. I need help getting my money back after being charged for a recall.

See all problems of the 2018 Toyota Highlander 🔎.

I am writing to express my concerns regarding my 2022 Highlander. As a loyal Toyota family, with this being my fourth Toyota, my husband’s second, and my parents’ fifth, we have consistently valued the Toyota brand and our dealership in bryan, TX. Recently, I brought my Highlander with (73,000 miles) to family Toyota in arlington due to a whining sound during acceleration. I was informed that the transmission requires replacement, at an estimated cost of $8,291. Furthermore, the transmissions are currently on back order, which would leave me without my vehicle for several months. While I have not found any official recalls addressing this specific issue, I have noted that this is a common concern with this model, and there are several class-action lawsuits pertaining to similar transmission problems across various models. I have also sought opinions from two independent transmission repair shops, both of whom have quoted a full transmission replacement. I contacted Toyota several times on what options may be available to me. They so far have left me with no rental car assistance and offered a very small discount on their known issue. I have already incurred approximately $800 in rental car and diagnostic expenses and am unable to cover the $8,291 replacement cost. It is disheartening to have owned my Highlander for less than three years, be unable to drive it, and still owe $20,000, which is not what I associate with the Toyota standard of quality. I now can not get to work and have a $47,000 piece of junk in my driveway and not even an apology from the company I once thought was #1 in customer service and reliability.

See all problems of the 2022 Toyota Highlander 🔎.

A persistent smell of fuel occurred while in slow moving traffic and after vehicle was parked after use. Upon close inspection, the fuel injector fuel rail end cap exhibited a slow fuel leak. This component caused a recall for year model Highlanders for 2014 production year describing the same type of component failure. The component has faulty end cap weldment that fails, causing the same failure mode being observed in my Highlander. This is a fire hazard! fuel rails should not be failing like this. A replacement fuel rail assembly has been order from salinas Toyota. The original component can be made available for inspection/testing. I will also take a video of the leak and provide file upon request.

See all problems of the 2013 Toyota Highlander 🔎.

Two weeks ago, I had my 2022 Toyota Highlander serviced at romano Toyota for my state inspection and regular maintenance. The dealership passed the inspection and did not mention any problems with my vehicle. However, just two days after the maintenance, the check engine light came on unexpectedly. The vehicle began to hesitate and shift roughly, with noticeable jerking during acceleration and delayed gear engagement. This created a safety hazard, especially when merging into traffic or crossing intersections, because the SUV would not respond quickly when pressing the accelerator. A diagnostic scan revealed transmission-related trouble codes (p2714 – pressure control solenoid d, and/or p2757 – torque converter clutch pressure control solenoid performance). I returned to the dealer, and they confirmed the issue but could not provide an immediate fix due to parts availability. They advised continuing to drive, which I feel is unsafe. The symptoms persist, and the transmission sometimes feels like it is slipping, which could result in loss of power in high-speed situations. This issue appears similar to other ua80 8-speed automatic transmission problems reported by Toyota owners from 2017–2022. Publicly available NHTSA records show over 200 similar complaints involving hesitation, rough shifting, and transmission failure. These reports suggest a potential widespread defect that may affect vehicle safety. Given the safety risk of delayed acceleration and possible transmission failure, I believe this defect needs investigation and corrective action.

After getting gas, the vehicle will not start. It will crank and crank but not turn over, like it is starving for gas. Then after 10-15 minutes it will start barely and to keep it running I have to floor the accelerator. Any other time it starts just fine. There are also no codes causing a check engine light.

I was involved in a vehicle crash on 7-1-25. I had just pulled out of the gas station and was coming up to a stop sign so I was only going about 8mph I put my foot on the brake and nothing happened. I had my foot all the way down on the brake pedal because I saw a car coming and they were traveling at about 40mph. No automatic braking nothing worked. I had no control. I just prayed that I hope this doesn’t hurt. None of my airbags deployed. My car is now totaled and of course I got the ticket because I did not have control of my vehicle. I strongly believe this has to do with the brakes and how it switches from electric to gas in my hybrid vehicle. Toyota has recalled prior years 2020 to 2022 hybrids for this exact issue. This is a huge safety issue and thankfully I am alive to make this complaint. My husband went to my Toyota dealership where I get all my service and the service manager said yes he has noticed this as a problem that he himself pulled in a Toyota Highlander hybrid into the garage and had the same thing happen. We have been reading online about others complaining of this same issue.

See all problems of the 2023 Toyota Highlander 🔎.

Check engine light has came on. Code p107b which is what the recall for this vehicle year has but doesnt incude my VIN.

See all problems of the 2019 Toyota Highlander 🔎.

Yesterday, as I do a couple times a month, I went to switch parking places, putting my 2021 Toyota Highlander where my 2007 Mazda was parked, in order to drive it and keep the battery from dying. After starting both cars I first moved the Mazda to make room for the Toyota. As I was slowly steering the Toyota at (idle speed) into the now vacant parking spot, the car accelerated on it's own, prompting me to hit the brakes, but to no avail. The car jumped the curb hitting, knocking over and and damaging a large ceramic planter and small tree in my neighbor's yard. My split second reaction upon having no brakes and a run away car was to push it out of drive, which ended up putting the car into reverse, causing a harsh jolt, followed by the car accelerating again on it's own, in reverse towards another neighbor's garage. I live in a condo complex, so all of this took place within about 30 feet of forward/backward/forward motion. My second split second decision (with no brakes) to avoid smashing into the garage was throwing it back into drive, which sent it accelerating back towards the parking place again. This time I had the presence of mind to push the power button on the dash, allowing me to barely come to stop before jumping the curb again. Whole thing lasted about 15 seconds. I had an appointment to attend, so after a brief conversation explaining to my (now outside) neighbor what happened, I left in the older car. Returning later in the day I found damage to the front of my Toyota and wonder if my transmission is damaged as well. I'm reimbursing my neighbor today. I've not attempted to drive the Toyota since, and am seeking your advice on how best to proceed, whether I should initiate contact with Toyota regarding this incident, or is that something you should initiate? please advise. Thank you.

I had just driven up a steep driveway and made a slightly sharper than 90 degree turn at a very low speed to pull into a home parking spot when the car lunged forward suddenly and slammed into the stone wall of the house at a high speed. The section of this driveway after the turn is only 2. 5 car lengths, but the car picked up enough speed to smash the front of the car in. The car was totaled and driver and side curtain airbags all deployed. I do not know why this happened as there is no way I would have hit the gas hard while pulling up to a building to stop. I also would not have slammed on the gas thinking it was the brake since there would have been no reason to slam on the brake when I was only going 5-10 miles per hour max around the tight turn. My shoe was not caught on a pedal, both sandals were still on my feet after the accident. I am not a two footed driver. I feel that it was an accelerator malfunction, as the gas pedal had always been a little strange with a delayed response, but may have also involved the transmission after driving up the steep hill and then returning to a short but flat stretch leading up to the house. I was very bruised up, particularly my shins and ankles. Two months later, I still have some visible bruising. I also had injuries from the seat belt on my chest and what appeared to be a powder burn from the airbags. I was quite traumatized by the sudden acceleration and violence of the crash and not understanding how or why it happened. If someone had been standing in front of the house to greet me on my return, they would have been killed. The car was towed away and totaled by the insurance company, so the problem hasn't been reproduced or confirmed. There were no warning lamps or messages that I'm aware of prior to the incident, except that the gas pedal has always felt inconsistent concerning when it engages. My phone self-dialed 911 and law enforcement came out to do an accident report.

Strong smell of fuel after a hot day. This is a new vehicle purchased new on 2024. No warning lights on dashboard. After reading a few threads about the same situation on newer Highlanders it seems like it's being ignored.

See all problems of the 2024 Toyota Highlander 🔎.

I own a Toyota Highlander 2018 le. I have been servicing it regularly at authorized Toyota delaership service centers. I have around 28000 miles on it. While trying to start the car this morning, the car wouldn't start, the brake feels hard and won't depress, and the dashboard displays the message" braking power low stop in a safe place see owner's manual".

Toyota manufacturing issue-fuel line is manufactured incorrectly-had gas seeping into cab of vehicle and tailpipe. Severe safety issue steering wheel/column sticks and almost lose control when driving due to a worn out coupler-poor design and manufacturing.

Vehicle smells like gas/fuel sometimes. I brought it to the dealership and was advised that they cannot duplicate my concerns since they can't smell anything when I dropped it off.

Was stuck in traffic on a highway for about 25 minutes going 0 miles per hour because of an accident about 5 miles away. Then the traffic started to clear and began driving on the road again. About five minutes later, the vehicle lost full drive abilities and the check engine light came on, traction control light on, brake light was on, abs light was on, stability control warning light on, and then on the info screen the vehicle stated, "hybrid system malfunction stop in a safe place, see owner's manual", screen then showed within 2-seconds, "pre-collision system malfunction visit your dealer", then in about 2 additional seconds later the info screen stated, "check engine visit your dealer", then most every waring light turned on, and there was no power for drive with either hybrid or gasoline engine. The vehicle basically came to a sudden halt in the middle of traffic with steering wheel locked and no control. Had to get police involved and a tow to get off the road. Had vehicle towed to a local Toyota dealership and they do not open until Monday at 9am. This incident occurred on Saturday around 3pm.

As my wife had the wheels turned and was pulling up to the curb stop in a parking spot the car suddenly lurched forward without putting the accelerator on and went up and over the curb. Stop and hit a pole. My thoughts are is that the engine possibly changed from hybrid to gas or vice versa and as my wife’s foot was let off on the brake to inch forward to the curb stop it suddenly lunged forward as previously stated.

Vehicle just turned 12,000 miles. When fueling the vehicle gas gauge does not read correctly. This may cause an unexpected loss of control and accident if out of gas when driving. Vehicle has not yet been to the dealer for repair but going soon. As far as I can determine there are no warning lamps for a faulty fuel gauge.

The car absolutely reeks of gas after driving for a while on warm days. You can visibly see the fumes around the filler neck. It has been the the dealer multiple times and they say they can't find anything. It seeps into the car causing headaches and dizziness. I personally know of 2 2023 Highlanders and 1 2024 Highlander that have this issue. I am extremely worried this will cause a fire and/or explosion at some point.

As I was returning to my house and about to pull into our garage I was driving very slowly, riding the brake in fact. I was going less than 1 mph but as I first entered the garage my car engine suddenly roared very loudly and sped inside. I pressed as hard as I could on the brakes and the car skidded towards the left and slammed into the garage wall. I firmly believe that the only thing that kept my car from traveling farther was the garage door frame. Between my braking and then turning off the engine, I came to a stop. There were skid marks on the pavement at the garage entrance from the hard braking and both the driver's door and the passenger door on that side were severely damaged. The car was now angled to the left and not pointed straight into the garage as it should have been. At no time did I press on the accelerator.

The fuel pump system is malfunctioning. This vehicle needs to be part of the current recall on 2018 Highlanders with fuel pump issues. This is putting me and my family at risk, as well as others. The code is coming back to the fuel pump. The check engine light is currently on.

On hot days the evap system does not function properly. You can visibly see gas fumes spewing from the filler neck area. The smell of gas inside and outside of the vehicle is horrible. It has caused headaches, nausea and dizziness to the passengers inside of the vehicle. It is extremely unsafe and Toyota doesn't know how to fix it. They are aware of the problem but refuse to remedy it. I personally know of 3 other Highlanders doing the same thing. Not only is it a personal safety concern, it's also an environmental issue. This problem is with 2023 and newer Highlanders and grand Highlanders.

My vehicle is stalling when driving and other Toyota Highlanders of same model and year were/are having the same issue and have been recalled for the fuel pump. Having my vehicle stall when driving in the busy highways of texas are very dangerous especially when some speed limits go up to 80mph. The problem has been reproduced and witnessed by a mechanic. The Toyota dealership stated that my VIN is not included in the recall so they could not fix it. There was no warning before the first time my vehicle stalled while driving in the highway. Unsure of how dealerships only stick to just the specific vins that are effected when other vins of the same model and year are having the same issue but are not willing to fix the issue.

Acceleration issues, engine lag, poor response time and bucking when accelerated is pressed. Dangerous to drive not enough power to merge with traffic and hesitates to go at stop lights. Bought as a family SUV and don’t feel safe with them in the car. Rpms jump when at idle. The car struggles to shift gears especially 2nd gear. Does not preform well under normal circumstances not sure how this car would ever be able to tow anything. I feel very mislead by Toyota and its reputation as this vehicle vehicle is lacking safety and performance. Reached out to Toyota about problems and have not received a remedy for the situation. A special campaign was issued but has not helped the problem. Very disappointed with this purchase as I paid over 50k for the vehicle brand new and don’t feel safe in the car as it bucks on acceleration and lacks the power to flow with traffic. This SUV will cause negative impacts if safety measures aren’t started quickly.

Driving along interstate 20 west in alabama to mississippi, the Highlander completely shut off - the dash & radio were blank. The steering wheel locked up. Luckily there was no vehicles behind or beside us when this happened. Within seconds, the truck came back on. 15 minutes prior, we were sitting in a parking lot to eat lunch & while in idle, the truck shuddered a few times, like the gas pedal was pressed.

When 87 octane fuel is put into the vehicle, the 2023 Highlander is sluggish to start and make jump at times as well. After reading other complaints online, the current fix was putting 93 octane in the vehicle to remedy the issue. Putting 93 octane fuel in the vehicle does help although the vehicle jumps around rpm's when going from eco mode to normal. All of these issues pose a risk to the car jumping from a start to cause a rear-end accident. I've complained to the dealer and they've stated everything is normal. Folks online stated their dealerships said Toyota was working on a fix.

I purchased the car in 2020 with 73k miles on it. It has sporadically had incidents of unintended acceleration. I happens when I slow for a stop sign, red light, or crosswalk. My foot is on the brake when this occurs, the engine then goes into high gear and no amount of pressure on the brake will stop it. I put the car in park and turn the key off. There are no warning lights. It has happened more frequently in 2024. On [xxx], I tried to come to a stop at a crosswalk in Plymouth MA. The ua occurred, putting the folks in the crosswalk and myself in danger. The next day I contacted the dealer and Toyota. The upshot - they said the car is fine, it must be my mats or shoes or something that is not their fault. I've been driving Toyotas for 40 years, I've never had a mat or shoe problem. There is something faulty with the acceleration/braking system. The last occurrence was [xxx] in plympton MA. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I just bought this car and I noticed when the car is sitting and idling it has a strong smell of raw gas in the passenger compartment. I took it to the fire department and they smelled it as soon as they opened the door. They also said this is not safe and I shouldn't be smelling a strong odor of gas in the passenger compartment.

While depressing the brake pedal the vehicle continues to accelerate before finally slowing to a stop. This happens on bumpy road surfaces as well as level road surfaces. There were no warning lights, alarms or messages prior to or during the failure. This issue started around 35,000 mileage and has progressively gotten worse to current day. (current mileage as of 1/29/2024 is 54,346. ) this issue would cause the vehicle to potentially rear end a vehicle you are following or propel the vehicle into an intersection typically controlled by a traffic signal or device. Local dealer has said there is nothing wrong as they could not replicate the issue.

Driving on 495 n beltway car started stalling and then suddenly stopped accelerating/decelerating while engine was running. Almost was rear ended by fast moving traffic. Carefully glided to the shoulder and called tow tuck incident on 12/18/2023.

Lost power 3 times - each time making a left hand turn at low speed -Nov. 23 2023 -- Dec. 20 2023 & Jan, 30 2024 groove Toyota checked vehicle out on Dec. 21 2023 couldn't find problem - took it to groove Toyota again on Jan. 31 2024 - told to make another appointment to allow full day of testing - safety concern for family and other traffic - no warning prior to loss of power.

This is the second incident with this vehicle in the past 4 months. When going to start my vehicle, it would not start. It gave me this error message: braking power low, stop in a safe place, see owners manual. There is nothing about this in the owners manual. The first time I thought it was battery related and after 3 different chargers on my vehicle, it finally started. Tonight I proceeded to push the button without the foot pedal and the radio came on, so it is definitely not the battery. I've tried several times to start and to no avail. Problem has not been reproduced as I cannot drive my vehicle at this time. No inspection as of yet. No warnings or symptoms prior to failure. Research shows it may have to do with a fuel pump pressure issue. I have paperwork on this issue under a customer support program 23te01. Hoping this can become a recall and I can get this fixed .

Engine intermittently has no power on take off and causes an unsafe condition to turning into traffic where car will just not go until after flooring it and a 3-5 second delay!! engine also looses power and bucks or misses while accelerating through gears. This has caused multiple near miss incidents when turning into or across traffic. Also have issues with the steering assist that it yanks the wheel intermittantly. This cause me to loose control on the wet interstate in a turn when it yanked the wheel to the right while banking left at 65mph. I panicked and pulled the wheel back which cause a skid. The system has been turned off since. Toyota is not doing anything to repair anything and keep giving me the car back saying its fine.

Experience "dead zones" in accelerator pedal movement. Experience "no acceleration" with first 1-2 inches of travel from idle position. This is constant and does not vary noticibly with speed. I was driving in an suburban shopping area in york PA with three lanes of travel in each direction. I intended to move from the laft hand lane to the center lane. I indicated my intentions and waited for an opening. I was travelling about 35-40mph. When an opening came along, I steered into the indended lane, but depressing the accelerator to increase my speed, no acceleration occurred. I then panicked and depressed the pedal quicker, and the ensuing acceleration nearly catapaulted me into the semi truck in the center lane ahead of me. I missed the truck by inches. I have had this issue evaluated at bennett Toyota in lebanon PA, and the lancaster Toyota, the dealer who sold me the vehicle in may of 2023, is aware of the issue. Bennett Toyota service department tried to fix the issue by replacing the brake switch. That did not alleviate the problem. I have had several other instances when pulling into traffic when the delayed acceleration caused me issues but no accidents. I believe this issue is related to the selectable "snow" driving function. I think the system is somehow stuck in the "snow" mode at all times. I may have substantiated this today when I experimented with the "snow" function while driving at about 45 mph. When I select the "snow" mode while driving, the accelerator "dead zone" actually gets worse. Bennett Toyota service response is "it drives like any other Highlander". If that is so - this is truly a huge issue with "drive by wire" tachnology. . . !!! as a note, at bennett Toyota I did drive a 2019 Highlander privately owned by the service manager and it did indeed have the dead zone in the acelerator - a fact that the service manager admitted to me verbally. I have read many instances of this issue in chats online.

Vehicle does not fill above 14 gallons of gas. It says 10 miles until empty, but when you fill it and try to force as much gas in as it will take, it only fills to 14 gallons not the capacity of 17. 8 that is advertised.