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Hyundai Sonata
2020 · gas, sedan
7 measured figures
7 of the 10 figures this market publishes for a car like this one are measured for this car. This market publishes no overall score, so there is no share of a composite weight to measure confidence against; figures_measured says how many of this market's figures the row carries, and contributing_publishers says who measured them

Measured figures

Fuel economy32 mpg (US gallons)Measured by EPA · configuration: Sonata
Tailpipe CO₂175 g/kmMeasured by EPA · CO₂ basis: tailpipe_rated · configuration: Sonata · also 282 g/mile
HorsepowerFree with an accountMeasured for this car, with its publisher and basis
WarrantyFree with an accountMeasured for this car, with its publisher and basis
Recall campaignsFree with an accountMeasured for this car, with its publisher and basis
NHTSA overall ratingFree with an accountMeasured for this car, with its publisher and basis
Complaints per 10,000 builtFree with an accountMeasured for this car, with its publisher and basis

5 more measured figures for this car — Horsepower, Warranty, Recall campaigns, NHTSA overall rating, Complaints per 10,000 built — each with the publisher that measured it and the basis it is on. Free to read with an account.

Figures this car does not carry

Fuel economy (MPGe)Not published for this carFuel economy (MPGe) is published for electric and hydrogen cars, whose economy is published as MPGe: energy converted at 33.7 kWh per gallon, not fuel burned; this car is not one of them, so the figure is not the same quantity for it
Tailpipe CO₂ (charge-weighted)Not published for this carthis car's CO₂ is published as the tailpipe rating for the car driven as rated on the test cycle (175 g/km), not as a composite weighted across electric and fuel-burning miles, so it is not the quantity this list orders. It is published as Tailpipe CO₂
Engine horsepowerNot published for this carNot published for this car. The record's own reason is free to read with an account.
Kerb weightNot published for this carNot published for this car. The record's own reason is free to read with an account.
EPA test weightNot published for this carNot published for this car. The record's own reason is free to read with an account.
PriceNot published for this carNot published for this car. The record's own reason is free to read with an account.

5-Year Running Costs

Totalnot estimated — a component above is unknown or modelled

Running costs only — the purchase price is not included. The five-year running cost is an ESTIMATE, not a measurement of this car: only its fuel half is computed from the car's own measured consumption and a dated pump price (see fuel_price_source and fuel_price_as_of in the market's own figures); insurance, maintenance and repairs are class models. It orders no list and is not one of this market's published figures. Confidence is low: several components are modelled from class averages.

Known Issues

FUEL/PROPULSION SYSTEM
45 complaint(s) · 3 report a crash, fire, injury or death
AS THE VEHICLE WAS AT A COMPLETE STOP AND WAITING FOR A CHANCE TO GET IN TRAFFIC, THE CAR HESTIATED AND WOULD NOT RESPOND TO THE DEPRESS OF THE GAS PEDAL, FOR A SECOND OR TWO... VERY STRANGE INDEED!..…
ELECTRICAL SYSTEM
39 complaint(s) · 2 report a crash, fire, injury or death
TL* THE CONTACT OWNS A 2020 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 55 MPH, THE VEHICLE SHIFTED INTO SAFE MODE AND LOST MOTIVE POWER. THE VEHICLE WAS TAKEN TO ST. CHARLE…
ENGINE
31 complaint(s) · 2 report a crash, fire, injury or death
MY CAR STALLED AND STUTTERED BETWEEN 1000 AND 1500 MILES IN TRAFFIC AND COULDN'T GET IT INTO GEAR ONCE STARTED. IT WAS THE FUEL RAIL SENSOR. NOW AT 6000 MILES DID SAME THING. IF SITS FOR BIT WORKS AGA…
UNKNOWN OR OTHER
27 complaint(s) · 3 report a crash, fire, injury or death
WHEN IT RAINS WATER GETS INSIDE THE DOORS WHILE PARKED. ESPECIALLY THE BACK DOORS. IF IT RAINS HARD A CUP FULL OF WATER WILL COME OUT THE DOOR UPON OPENING. I'VE BEEN TOLD IT'S A DESIGN FLAW. I'VE HAD…
POWER TRAIN
24 complaint(s)
OCCASIONALLY THERE IS A SERIOUS DELAY WHEN TRYING TO ACCELERATE. CAR TENDS TO JERK/BUCK WHEN ACCELERATING, USUALLY IN THE LOWER GEARS. I HAVE NO IDEA IF THIS IS A TRANSMISSION ISSUE OR A FUEL INJECTIO…
SEATS
16 complaint(s)
While exiting the vehicle there was a loud pop from under the drivers seat. Upon inspection the left front weld attaching the drivers seat to the positioning bar to raise and lower the seat bottom had…
STRUCTURE:BODY
12 complaint(s)
I LOOKED UP UNDER THE HOOD, IT START RUSTING IN FRAME IN DRIVER SIDE. I CHECKED OTHER 2020 SONATA FROM DEALERSHIP AND THOSE CAR ARE EVEN WORST. THOSE CAR RUSTING DRIVER AND PASSENGER SIDE TOO. *TR
FUEL SYSTEM, GASOLINE
11 complaint(s)
The contact owns a 2020 Hyundai Sonata. The contact stated while driving approximately 65 MPH, there was a booming sound heard and suddenly there was an abnormal fuel odor inside the cabin of the vehi…
FORWARD COLLISION AVOIDANCE: WARNINGS
8 complaint(s) · 1 reports a crash, fire, injury or death
Tonight on 7/29/2023 after driving between 5-10 miles at night with very light traffic, my dashboard flashed a message telling me "Forward Safety system disabled. Radar blocked." After receiving this…
AIR BAGS
7 complaint(s) · 2 report a crash, fire, injury or death
PASSENGER AIR BAG DOES NOT WORK IF PASSENGER USES A CUSHON OR A HEAVY COAT. DEALER SAID THEY CAN NOT CHANGE THIS I WAS TOLD TO CONTACK HYUNDAI. I DID SO NO HELP YET. I BELEAVE THIS A PROBLEM WITH MA…

The 10 components named in the most complaints are shown, of 38 named in all.

These complaints are filed under SONATA, a name NHTSA also uses for other versions of this car, so some may concern those versions.

Data sources