Fuel system
CERTAIN SPORT UTILITY VEHICLES MAY EXPERIENCE A FUEL LEAK FROM FUEL TUBES NEAR THE FUEL TANK DUE TO AN INTERFERENCE FIT WITH THE VEHICLE FLOOR PANEL.
NHTSA lists 1 safety recall and 308 owner complaints for the 2003 Kia Sorento. Most complaints involve engine and engine cooling (82) and engine (43). The EPA rates it 15 mpg combined.
CERTAIN SPORT UTILITY VEHICLES MAY EXPERIENCE A FUEL LEAK FROM FUEL TUBES NEAR THE FUEL TANK DUE TO AN INTERFERENCE FIT WITH THE VEHICLE FLOOR PANEL.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each Sorento model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 2003 | 308 |
| 2004 | 220 |
| 2005 | 307 |
| 2006 | 242 |
| 2007 | 154 |
| 2008 | 217 |
| 2009 | 55 |
| 2011 | 1,520 |
| 2012 | 880 |
| 2013 | 983 |
| 2014 | 988 |
| 2015 | 755 |
| 2016 | 1,262 |
| 2017 | 808 |
| 2018 | 255 |
| 2019 | 435 |
| 2020 | 140 |
| 2021 | 25 |
| 2022 | 194 |
| 2023 | 126 |
| 2024 | 44 |
| 2025 | 77 |
| 2026 | 6 |
“THE CRANK BOLT BROKE JULY 23, 2013. THE SECOND TIME WAS, THE CRANK BOLT AGAIN AND IT BROKE DECEMBER 19, 2014. THE ODOMETER WAS AT 133181 FOR THE SECOND BOLT BREAK. *TR”
“TL* THE CONTACT OWNS A 2003 KIA SORENTO. THE VEHICLE STALLED AND LOST MOTIVE POWER WHILE DRIVING THE CONTACT WAS CONCERNED FOR HIS SAFETY WHEN THE VEHICLE STALL THE CONTACT WAS CONCERNED THAT IT WAS RELATED TO THE FUEL SYSTEM WHILE DRIVING AT APPROXIMATELY 60 MPH, THE SPUTTERED AND STALLED. THE CONTACT WAS ABLE TO RESTART THE VEHICLE. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO SEVERAL INDEPENDENT MECHANICS WHERE THE FUEL PUMP WAS REPLACED, A TUNE UP WAS PERFORMED, THE CAMSHAFT SENSOR, AND TIMING BELT WAS ALSO REPLACED HOWEVER, THE FAILURE RECURRED. THE CONTACT STATED WAS CONCERNED THAT THE FUEL SYSTEM WAS THE CAUSE OF THE FAILURE. LAKESHORE KIA, 330 E HOWZE BEACH RD #2, SLIDELL, LA 70461, (888) 220-8645, WAS CONTACTED AND INFORMED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED NOR INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 115,000.”
“IT IS BEYOND ME HOW KIA MOTORS CAN GET AWAY WITH TELLING A BUNCH OF AUTOMOBILE ENGINEERS, THAT THE PROBLEM WITH THERE VEHICLES SPITTING BACK GASOLINE ONTO A PERSON AND KIA MOTORS TELLING THEM IT'S AN AIR FILTER. I TOOK MY2003 KIA SORENTO BACK TO THE DEALERS THINKING I WAS GOING TO GET A NEW CHARCOAL FILTER WHEN ALL WAS SAID AND DONE I RECEIVED A $20 AIR FILTER FOR THE CHARCOAL CHAMBER WHICH HAD NO PROBLEM TO BEGIN WITH. I STILL HAVE A 2003 KIA SORENTO THAT SPITS FUEL BACK ON TO ME AND I"M WAITING FOR THE DAY SOMEONE THROWS A CIGARETTE BUTT AT ME AND I CATCH FIRE< BECAUSE I WILL OWN KIA OF AMERICA AND A WEALTHY LAWSUIT AGAINST THE NATIONAL TRAFIC SAFETY PANEL. DO YOU KNOW I HAD A SHORT ACCESS TO A KIA SITE RECENTLY AND SEEN OVER 100 SERVICE BULLETINS, NOT JUST 8 THAT ARE ON THIS SITE I GUESS YOU PEOPLE FORGOT WHO YOU WORK FOR THE UNITED STSTES PEOPLE/NOT KIA MOTORS AND YOU CAN BET YOUR ASS I'M NOT DONE UNTIL EVERYONE OF MY SERVICE BULLETINS IS ADDRESSED SO YOU BEAN COUNTERS BETTER START FIGURING BLAME BECAUSE AS I SAID WHEN I'M DONE YOU'LL SEE THIS IS BULLSHIT IF THIS WERE FORD, CHEVY OR CHRYSLER YOU WOULD HAVE DRAGGED THEY'RE ASS ACROSS THE COALS WELL YOU…”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Sorento 2WD Auto 4-spd, 6 cyl, 3.5 L · Rear-Wheel Drive | 14 | 18 | 15 | $4,150 | 592 |
| Sorento 4WD Auto 4-spd, 6 cyl, 3.5 L · 4-Wheel or All-Wheel Drive | 13 | 17 | 15 | $4,150 | 592 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
1 safety recall as of Nov 10, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 308 complaints with NHTSA. The most-cited components are engine and engine cooling (82), engine (43), fuel system, gasoline (41). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2003 Kia Sorento at 15 mpg combined, depending on engine and drivetrain (2 versions rated).