2023 Toyota Highlander: hesitation when accelerating

Filed Jul 30, 2026 · Transmission · FL

The transmission developed hesitations at take off, a whine at low speeds and over time got louder. Diagnosis by the dealer confirmed yet another bad eight speed transmission failure. This vehicle has 41K miles.

Filed Nov 3, 2024 · Engine, Fuel system · AZ

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.

Filed Aug 15, 2024 · Acceleration, Engine · OH

From a stop or slow roll (0-10 mph), significant hesitation is experienced after pushing the gas. The engine will not respond for a few moments and then all of a sudden it will take off in a jerking manner. Note that this is experienced when the engine auto start/stop is deactivated, so it is not from the delay of the engine starting when activated. This hesitation causes a near miss safety situation in many normal driving activities, but the highest risk is when turning left in front of oncoming traffic. I brought the vehicle to a Toyota dealership for the condition, noting Toyota's Service Bulletin T-SB-0087-23 for this exact issue, but after 3 days and 40 miles of the dealership driving it, they stated that they cannot reproduce the issue. There are no warning signs or lamps, and this issue has been occurring since the vehicle had about 1,000 miles, and the vehicle now has 20,000 miles on it.

Filed Jul 21, 2024 · Acceleration, Engine · MO

When 87 fuel is put into the vehicle, the 2023 highlander is jerky/has hesitation, RPMs jump around. Trying to slow down to a yield then go again it jerks and almost feels like engine is cutting out. Seems worse when car is being driven on warm day with a/c on or under a “load”. Very dangerous in intersections. Current fix is to put 93 octane in the vehicle to remedy the issue. Putting 93 octane fuel in the vehicle does help. 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 when they test drive and no codes are showing even explaining a TSB was issued they refuse to fix. Started at 500 miles on odometer, still happening at over 13,000 miles.

Filed Jul 3, 2024 · Acceleration · IL

Hesitation/Non-linear Acceleration From a Stop. Reprogramming the ECM completely resolved the issue. This needs to be sent out to affected vehicles but I had to investigate and pretty much demand a resolution. I fear what this could later do to our engines, etc.

Filed Jun 10, 2024 · MA

When driving the vehicle will hesitate and pause when trying to accelerate. This normally occurs when trying to make a turn. The delay is a safety concern since the lack of acceleration frequently causes near accident with oncoming traffic. The dealership recreated once but said there is nothing they can find/ do about it.

Filed Feb 21, 2024 · Engine · TX

Issues with vehicle accelerating, bucking and hesitating

Filed Nov 3, 2023 · Engine · CA

The vehicle surges and hesitates when pressing on the gas. Several times I push on the gas and nothing really happens. Slow to move. Other times I push on the gas and it “bucks”. Like the turbo kicked in to max power all of a sudden. Almost lost control of the car a couple times. Once was on a mountain road. I am hesitant to drive it and even more so to let anyone else drive it. For fear of them losing control and running off the road because it becomes impossible to handle for a split second. The entire time I’m driving, it sputters/hesitates. Something is wrong with the car. I will attempt to take it to the dealer, as I have less than 12,000 miles on it. But I’m not optimistic based on the threads I’ve searched on line. Seems like Toyota knows there’s an issue and hasn’t done anything to rectify it.

Filed Oct 31, 2023 · Electrical, Engine · FL

The car lags, stutters, and hesitates on acceleration and in consistent speed situations. Sometimes doesn't respond quickly to gas pedal and sometimes it does. It is very unpredictable and unsafe. I never know which response I will get. Has also almost completely died after putting the car in park.

Filed Sep 21, 2023 · Engine, Fuel system · AZ

I've had the car for 6 months. After a few months we noticed a "bucking" during acceleration and a "hesitation" when pressing the accelerator. Under medium to hard acceleration the car will exhibit these traits almost consistantly and now after 3500 miles it has become so noticeable that it is dangerous! The hesitation is "off the line" from a dead stop. There is at least a couple second delay sometimes when leaving a stop. And then as the car climbs in RPM's you can feel the engine struggling almost like a car with bad spark plug wires. It tends to "spit and buck" as it is accelerating. We have tried different fuels, fuel cleaners, different octanes, and nothing seems to curb the problem. We took the car to our local dealer and they confirm the problem but have stated that there is nothing they can do as it appears to be a software issue with the car. I have requested from Toyota using their "Brand engagement center" to provide an engineer to evaluate the car and so far have not heard back from them in almost a week.

Filed Sep 15, 2023 · Engine · FL

The vehicle hesitates and stutters upon light to moderate acceleration. This can happen either from a dead stop or while moving in traffic. The concern was present when vehicle was purchased new in Feb 2023. Initially the dealership thought the symptoms were related to the transmission learning algorithm, but this was later determined not to be the case and the dealership was able to reproduce the drivability concern. The dealership was also advised that running 91 octane fuel eliminated the symptoms, however the engine is designed to run on 87 octane. Subsequently, the dealership was advised by Toyota to replace several parts associated with the VVT (variable valve timing) on the exhaust camshaft which did not resolve the concern. Toyota subsequently agreed to replace the vehicle after filing a lemon law complaint with NCDS. This drivability concern is a safety concern as the hesitation and stutter could occur during a traffic maneuver and cause an accident due to the engine not properly responding to driver input. No check engine or other warning lamps present when this occurs, which is most of the time though more pronounced when ambient temperatures are above 75F degrees.

Filed Sep 6, 2023 · Engine, Fuel system · NC

Upon acceleration, car hesitates then surges. Started after approximately 2000 miles. Occurs most frequently from a dead start. However, continues upon acceleration up to 50 mph. Took to Toyota Dealer, but they were unable to diagnose. Others report similar problems on Toyota Nation Form. Concerned about pulling out into traffic safely