Vehicle does fill gas tank to capacity of 17.2 gallons. It only fills about 12 gallons. It has a 2.6 gallon reserve so only fills about 14.5-15 gallons. The reserve is not included in range est on dash. Vehicle gets 230-270 miles per tank. You have to pull gas nozzle half way out to even get this 12.9 gallons - gas almost overflows to get this done. If your est millage left is 44 miles you can only get about 10 gallons in. The gas overflowing when trying to get more gas in the car is common. Many complaints online. This is a safety issue and known by Toyota and dealerships.

- Raleigh, NC, USA

I live in Arizona and the car has bad gas smell after drive a while(usually between 10-30 minutes) in a hot day (usually afternoon). I took the car to dealership and they replicated the issue and the dealership said Toyota told them it-??s due to excessive heat and told us to use better quality gas which we are already getting gas from Chevron and Costco. Seems this is known problem because I saw other grand Highlander owners complained the same issue but Toyota is not doing anything to fix it. They can-??t blame on the heat since they are selling the vehicles in AZ/NV. After drive the vehicle during a hot day, park the car in garage and the garage smells like gasoline.

- Oro Valley , AZ, USA

Since purchasing this vehicle when I have driven the vehicle and come home the vehicle smells of gas vapor/fumes. It's so bad the entire garage will fill with the vapor. Im afraid the garage will explode. I have to leave the vehicle parked outside for several hours until the smell is gone. This is a known issue for this car as others have complained about the same thing. Dealership has confirmed it is a known problem. They tried o tell me the first time I took it in that it was due to extreme heat in Las Vegas. I explained that our other vehicle and our friends vehicles don't do this and that is merely an excuse. After researching online I found that several other others in other states have the dame issue. When I recently took the vehicle in for software/radio issue as well as the gas vapor they did confirm it is a known issue. This is a safety issue as it could cause an explosion in small spaces where parked. We have an air conditioner for our garage but even at that it's extremely dangerous. This has happened on several occasions. Most recent is listed below.

- Las Vegas , NV, USA

I have a 2024 Grand Highlander and when I get to empty the most I can put in it is 10 1/2 gallons of gas. Toyota said I had a 17.2 gallon gas tank. I-??ve called Toyota. They set up a appointment. They were going to pull the gas tank and check the sensor. The dealership said oh no you have a 5 gallon plus reserve in that we have the same problem with the RAV4, the problem is because on trips you have to keep stopping for gas when I get 325 to 340 miles it tells me I-??m empty when I fill up it says I can go 520 to 540 miles the most I-??ve ever been able to put in it was 12 gallons and that was going down beyond empty and driving it for another 50 miles. It doesn-??t make sense to have 5 gallons 6 gallons 7 gallons of gas sitting in my truck that I-??m carrying that weight and not getting to use it this just doesn-??t seem like Toyota-??s way of fixing things. I did recall Toyota and now they tell me I have to get the dealership to do something about it. They don-??t do repairs on their vehicles. Only the dealership can do that.

- Waterford, PA, USA

Published 2024 Toyota Hybrid Grand Highlander (TGH) specifications, the TGH owners manual and dealer information provided indicated the vehicle has a 17.2 gallon fuel tank. However, the most fuel I am able to get in the tank is between 11 and 11.5 gallons. I've had the vehicle in to fix the defect on three occasions; 2023-11-27, 2024-3-11, & 2024-8-13 to no avail. On the second service, Toyota's technician said the tank had 16.8 gallons remaining when I picked it up, I had filled it the previous day and driven approximately 15 miles. Once the gauge showed near empty with only a few miles left of fuel, I filled the tank and was only able to get 11.4 gallons in the tank. There appears to be six gallons of fuel that I am carrying in the tank that the fuel system cannot access. I have searched on-line and found that a number of other TGH owners are experiencing a similar defect.

- Bellevue, WA, USA

Sometimes the vehicle will be very sluggish when accelerating from a stop, it is hard to replicate, and inconsistent.

- Georgetown, TX, USA

while the engine has not warmed up, when its hot and air conditioning is on high, vehicle does not respond to the gas pedal while trying to accelerate from a stop. vehicle hesitates on acceleration. i feel this is a safety problem, because i need the car to merge quickly onto the road from a stop. this hesitation could cause a bad accident. i feel like the hesitation, is the car trying to find the gear.

- Henderson , NV, USA

When accelerating from a stop, there is a hesitation or lack of power when stepping on the accelerator. Releasing the accelerator and depressing it again will get the car going. The engine also revs high at low speeds before dropping to the next gear.

- New Orleans, LA, USA

Starting off from a stop or at low speeds the vehicle loses all power. Engine stumbles and does not respond, when it happens it almost feels like the engine may stall. Pressing the accelerator and the vehicle will not move, then suddenly will start to go seconds later. This has almost resulted in a crash since the vehicle loses all propulsion unexpectedly. No warning lights. Took to the dealer twice and everything is -??normal-?? no codes stored.

- Erie, PA, USA

The fuel tank capacity according to the vehicle specifications should be 17gallons. I have refilled the vehicle three times after reaching empty (around 20mi left according to the gauge), and when I fill the tank it only takes about 11 gallons to fill. That is a significant difference. Even with a reserve, I should be putting around 15 gallons in the tank when it is on empty to fill it. I am concerned that the tank is not the correct size or there is a problem with the fuel level sensor.

- Staten Island, NY, USA

Toyota is having issues filling up the tank as the specs says (Owners manual book). According to the Owners manual book, the Gas tank of these vehicles are 17.2 Gallons and 2.6 of those are saved for the reserved. In theory, we should have 14.6 Gallons to fill-up as soon as we see the "Empty sign" on the vehicles. Now, the thing is that even after this happens, we can only fill-out up to 11.5 gallons. I have tried several times, saving the history on FUELLY, and its always the same. I have asked the dealership and they don't know what to do. If you just search for "Grand highlander gas tank issues" you will find thousands of people that have the Grand Highlander (not only the Hybrid, models, but all models) are saying the same thing (Facebook groups you can join and talk with real people who can prove you this issue) the gas tank cannot be filled up to what the size of the tank is (owners manual) This is not good since we dont know the real value of miles / gallons of tank left so we know when we could fill up the tank specially if you are on a long road trip where there are not a lot of gas stations between places. Please ask TOYOTA to find where the issue is in here, it might be just the air is not allowing the gas pumps to fill out more gas in the tank.

- Chula Vista, CA, USA

Myself and all Grand Highlander owners of the new version that just came out in 2024, we have the same fuel issue. The car is only registering half a tank of gas. If you go to the grand Highlander forum every driver is reporting the exact same issue over the last three months that the car has been out Toyota has put out a statement but has no solution, it is a hybrid and it-??s supposed to get 400 miles or more per tank and we have to fill it up every time we drive only 170 miles. However, when the tank says on the digital screen that it is empty, there is still 10 gallons in the tank. This is for all owners and effects all cars of the Grand Highlander Platinum Max only.

- Haskell, NJ, USA