2017 Toyota Highlander: check engine light

Filed Jul 10, 2026 · Fuel system · NC

The engine stalled because the fuel pump is failing. We have found that many 2017 Toyota Highlanders have had the fuel pump recalled for this exact issue, yet our VIN is not included in this recall. We experienced the exact issue the recall was issued for stalling while driving. Issue on July 24, 2027: The engine stalled while driving on the highway at high speed and lost power steering, creating a major safety issue. We had our vehicle towed to a car care center. The car care center identified diagnostic codes related to low pressure fuel system pressure, engine stall history, etc. but cannot reproduce the issue. After checking multiple systems, he believes the issue is a failing fuel pump. Background: Over the past 6 months, we have had problems with the check engine light turning on. On multiple occasions, we have brought the car to get diagnosed and the reading has consistently been fuel pressure codes. Each time we get the car diagnosed, the technician could not reproduce the issues and cleared the codes without resolution.

Filed Jun 4, 2026 · Transmission · CA

Vehicle had history of hard shifting from 1st drive. On January 24, 2026 we heard a ringing sound as we were driving. Approximately 10 minutes after the noise began, the Check Engine light illuminated. We drove back home and connected our code reader to find P0741, P2714 and P2757. Had the vehicle towed to my Toyota Service Center and upon inspection, was informed that the transmission had failed and would require replacement. I was informed that although it was a 2017 with the UA80E manufacturered in April 2017 - it did not qualify for free replacement under Toyota. A rebuilt unit was secured and installed on 2/11/26. Toyota authorized $2000 Goodwill Assistance and their Warranty Labor Rate. I paid the remainder of the bill. The 'new' transmission also shifts hard and just doesn't feel like it it working right.

Filed Jun 3, 2026 · Engine · 151,000 miles · TX

The contact owns a 2017 Toyota Highlander. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, who determined that the spark plugs needed replaced. The spark plugs were replaced by an independent mechanic, but the failure recurred. The vehicle was taken back to the independent mechanic, who retrieved diagnostic trouble codes P11F0 (Air-Fuel Ratio Imbalance) and P0305 (Misfire In Cylinder Number 5). The mechanic cleaned the fuel injectors, but the failure persisted. The contact was informed that the fuel injectors needed to be replaced. The vehicle was taken to a second dealer, Toyota of Cedar Park (5600 183A Toll Rd, Leander, TX 78641), who determined that cylinder #5 needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 151,000.

Filed May 24, 2026 · Transmission · PA

There is a known issue with the transmission in my 2017 Toyota Highlander that causes premature failure. This is noted in a Toyota Customer Support Program Bulletin. The issues symptoms are the same as those my car has: a whining noise from the transmission while driving, harsh shifting, reduced power, and master warning light/check engine light illumination. I have contacted Toyota and explained this to them, but they have told me that my car's VIN number does not match the identified vehicles. I am reaching out as I believe there are vehicles with this problem that Toyota has not identified, and it could be a dangerous issue.

Filed Jan 5, 2026 · Acceleration, Transmission · WA

-- What component or system failed or malfunctioned, and is it available for inspection upon request? This report is regarding a premature transmission failure in our 2017 Toyota Highlander equipped with the UA80F 8-speed automatic transmission. Our highlander is currently stuck at High Tech Automotive in Wenatchee, WA 150+ miles from home after experiencing a transmission failure on the highway. -- How was your safety or the safety of others put at risk? During the transmission failure while driving on the highway the Check Engine Light came on as well as ABS light and vehicle went into a limp mode. The transmission failure and subsequent limp mode rapidly decreased our speed while traveling on the highway and forced us to limp the vehicle at low speeds across traffic putting ourselves and others traveling on the highway at risk. This vehicle has been well maintained and serviced in accordance with Toyota’s recommended maintenance schedule. Despite this, the transmission failed unexpectedly during a recent family road trip to Wenatchee, WA, leaving us stranded far from home. -- Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the vehicle was towed to High Tech Automotive in Wenatchee WA (where it is currently stranded). The diagnostics report there confirmed proper transmission fluid level and a failed transmission with burnt transmission fluid. -- Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Not yet. A request for assistance was sent to Toyota today. -- Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? There were no warning lamps, or messages. We've had the vehicle maintained and there was a whirring sound which we had inspected at Dougs Auto Tune and Repair thinking it could be the timing chain or alternator but there was no indication of transmission issues.

Filed Aug 27, 2025 · Fuel system · UT

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

Filed Jul 14, 2025 · Electrical, Engine · MO

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.

Filed Jun 24, 2025 · Transmission · FL

Car suddenly began to slip out of gear and have difficulty shifting smoothly. After having car examined by 2 repair shops it was determined the UA80 Transmission needed replaced. Repair shop advised car was not safe to drive with this condition. Warning lights for Check Engine and Check AWD system and traction control came on at the same time as the slipping and rough shifting.

Filed Oct 14, 2024 · Electrical · SC

As the electronic back hitch was closing, I pressed the Start Engine button and the vehicle dashboard lit up but would not start. Then I pressed the button again and it said the Ignition is On. Pressed again to shut off. Vehicle made a bunch of clicking noises but would not start. Disconnected battery to “re boot” electrical system… but a charger on battery and then the vehicle started. BUT the ! And Check Engine light was now on… saying take to your dealer… Check AWD. Drove vehicle at lunch time… and warning light and check engine light just went off! So weird!

Filed May 23, 2024 · Transmission · WA

In city driving, vehicle began exhibiting slightly delayed shifting from 1-2 and 2-3. Downshifts from 3-2 seemed slightly rough. Approximately 5 minutes later when accelerating from a stop on an uphill grade, the shift from 2-3 was delayed (2nd gear disengaged, engine speed increase ~1000RPM, then shifted to 3 abruptly). At next stop, lower gears where not available. Vehicle seemed be in 4th(?) gear when accelerating from a stop. Very little power available. Had to engage hazard flashers and other vehicles navigated around our vehicle. Managed to limp car ~ 1 mile to home. Approaching driveway, Master Warning Light, Check Engine Light and 4WD Warnign light all illuminated. This issue created a loss of power that impaired the drivers ability to maintain a safe speed relevative to traffic. Had this issue occurred during high-speed operation, the vehicle may have been disabled in a high-risk area. Transmission appears to be unreliable.

Filed Dec 4, 2023 · Engine · 66,000 miles · PA

The contact owns a 2017 Toyota Highlander. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. As a result of the failure, the contact was unable to maneuver or control the vehicle before coming to a complete stop in the middle of the roadway. The vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who was unable to determine the cause of the failure and advised the contact that a Toyota technician needed to diagnose the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure but did not assist. The failure mileage was 66,000.

Filed Aug 3, 2023 · Fuel system · OH

Car won’t start after getting gas. Check engine like comes off and on. Rough stopping and getting up to speed. When issue with getting to speed on highway put us in dangers way. Not being able to start vehicle multiple times for long period concerning and frightening for family.