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Not sure if anyone else has experienced this and knows a Solution. I’m currently waiting to hear from the dealer and thought I would ask the internet. I went to fill my tank with gas, got 30+ litres in when it stopped. I imagine it was full. To my surprise, no it wasn’t. And the range was not accurate for what the fuel gauge even displayed. I have driven 300 km since, and now it will only take around 14 litres of gas, give or take. And the fuel gauge and range has not changed…
 

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Not sure if anyone else has experienced this and knows a Solution. I’m currently waiting to hear from the dealer and thought I would ask the internet. I went to fill my tank with gas, got 30+ litres in when it stopped. I imagine it was full. To my surprise, no it wasn’t. And the range was not accurate for what the fuel gauge even displayed. I have driven 300 km since, and now it will only take around 14 litres of gas, give or take. And the fuel gauge and range has not changed…
Did you every get this resolved, as I am having the same experience.
 

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When I fill up my Hybrid Limited (all glass console), the gauge always shows full. The range is always a bit optimistic. By the time I am refilling, the range has gone down about 30 miles more than the actual mileage (minor annoyance). The odometer and speedometer are perfect, so they are not the culprits).
 

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2022 Tucson Hybrid SEL Convenience
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100 Posts
On my first fillup the dash range estimate showed about 65 miles remaining & took 11.58 gallons. Given manually computed mileage of 32.8, I'd say the range was pretty close.
 

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2022 Tucson Hybrid Blue Trim
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165 Posts
When I fill up my Hybrid Limited (all glass console), the gauge always shows full. The range is always a bit optimistic. By the time I am refilling, the range has gone down about 30 miles more than the actual mileage (minor annoyance). The odometer and speedometer are perfect, so they are not the culprits).
The ECU continually recalculates the range based on your fuel burn.
 

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Not sure if anyone else has experienced this and knows a Solution. I’m currently waiting to hear from the dealer and thought I would ask the internet. I went to fill my tank with gas, got 30+ litres in when it stopped. I imagine it was full. To my surprise, no it wasn’t. And the range was not accurate for what the fuel gauge even displayed. I have driven 300 km since, and now it will only take around 14 litres of gas, give or take. And the fuel gauge and range has not changed…
I just joined this forum and I am having the same issues and I disconnected and reconnected my battery and the Range seems to work but I can't tell with the Guage yet.

Try disconnect and reconnect battery.
 

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Have you tried a different gas station? Could be an issue with the nozzle tripping too early.
Not sure if anyone else has experienced this and knows a Solution. I’m currently waiting to hear from the dealer and thought I would ask the internet. I went to fill my tank with gas, got 30+ litres in when it stopped. I imagine it was full. To my surprise, no it wasn’t. And the range was not accurate for what the fuel gauge even displayed. I have driven 300 km since, and now it will only take around 14 litres of gas, give or take. And the fuel gauge and range has not changed…
I have found, with my ICE 2022 Tuscon, that if I set the nozzle on the slowest speed of fill, when it clicks off, if I VERY slowly add more fuel, I can get nearly 1.5 gallons of gas more in the tank. Obviously, there is some type of bubble/design issue with the filler neck and top of the tank.

With filling til I can see gas in the filler neck, I'm able to get 500 miles on a tank at 72 mph...

We used to do this with my TDI to make sure the tank was completely full so I'm kinda used to doing it..

Gary Miyakawa
 

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2022 Tucson Hybrid Blue Trim
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I have found, with my ICE 2022 Tuscon, that if I set the nozzle on the slowest speed of fill, when it clicks off, if I VERY slowly add more fuel, I can get nearly 1.5 gallons of gas more in the tank. Obviously, there is some type of bubble/design issue with the filler neck and top of the tank.

With filling til I can see gas in the filler neck, I'm able to get 500 miles on a tank at 72 mph...

We used to do this with my TDI to make sure the tank was completely full so I'm kinda used to doing it..

Gary Miyakawa
By design, the gas tank and filler nozzle are supposed to stop automatically filling before the tank is completely full. The reason is that gasoline can expand up to 2.5% once it is dispensed to your fuel tank. It comes out of a cool underground tank and may heat up to more than 100degF once dispensed to your fuel tank that rides right above the hot pavement. You defeat that safeguard when you fill "till I can see the gas in the filler neck". Now when the gas expands it has nowhere to go but to flood out the charcoal canister and other emissions control equipment that recirculates gasoline vapors and burns them.
 

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2022 Tucson SEL FWD Amazon Grey Convenience/Premium/Cargo Pkgs
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815 Posts
By design, the gas tank and filler nozzle are supposed to stop automatically filling before the tank is completely full. The reason is that gasoline can expand up to 2.5% once it is dispensed to your fuel tank. It comes out of a cool underground tank and may heat up to more than 100degF once dispensed to your fuel tank that rides right above the hot pavement. You defeat that safeguard when you fill "till I can see the gas in the filler neck". Now when the gas expands it has nowhere to go but to flood out the charcoal canister and other emissions control equipment that recirculates gasoline vapors and burns them.
Yes. Topping off a little is fine but the system is meant not to be full. I'm curious how this is seen as a problem cars have been designed like this for a long time.
If you are traveling long miles and especially not in summer heat probably no harm is filling up to actually full since you will use it so fast especially in areas of the Country with less gas stops.
 
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