Worried about potential repair costs? An extended warranty can provide peace of mind.
Chart based on 95 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2011 Hyundai Sonata
Engine not specified
13000 mi
Engine light on, car running rough, getting poor gas mileage. Replaced something which managed the fuel mixture.
19000 mi
Knocking or Pinging of the Valves when accelerating.
Catastrophic engine failure. Engine died while on highway.
Engine, turbo and multitude of sensors were eventually replaced. Problem not fully diagnosed.
24260 mi
Turbo not responding at start up. Have to shut down and turn back on for Turbo to work. Repaired electronic waste gate. After Turbo repair, check engine light came on. Rough starting/idle. Injector issue on cylinder #2. Showing Misfire. Injector ended up being replaced.
42000 mi
US $50
Check engine light on. Local mechanic read as turbo waste gate. Recommended I go to the dealer if it recurred.
43200 mi
Check engine light on, lack of power. Turbo waste gate adjustment
65400 mi
Oil leak, turbo return line corroded. Line and seals replaced.
65700 mi
Oil leaking from valve cover gasket
78000 mi
Turbo oil feed hose replacement
83000 mi
US $55
Evaporative Vent Valve Solenoid - from check engine light
92000 mi
Engine failure - replaced under warranty
3500 mi
Check Engine Light came on, code was for evaporative emissions system, or something like that. A pressure check was done, with no problems found. No repair was made for this issue.
25420 mi
Engine developed a severe oil leak.
129000 mi
Full engine replacement.
Due to a faulty oil transfer tube, all oil was drained from the crankcase with no warning. First indication was when it became a paper weight on the highway.
Hyundai footed the entire $6400 bill.
59000 mi
US $500
Observed small oil leak. Mechanic replaced valve cover gasket and also found GDI seal was bad so it was also replaced.
119000 mi
Engine knocking. Short block replaced under court settlement/recall campaign and extended warranty.
26000 mi
US $3700
Engine missing when started early in morning. No dealer. Fuel additive added thinking water in system. On freeway engine smoothed. Called dealer 100mi away. Told safe to drive. Injector clogged, spark plug burned off. All njtrs & plug repl. Dealer said safe 2 drive 2 destination 300mi. Slight miss @ low rpms. OKC dealer found 2 leaking valves. Took 3 days 2 get new valves & entire week for repair! OKC dealer said valves defective and had nothing 2 do with injector problem.
99600 mi
Recall for certain 2011 Sonatas that had metal fragments left in the engine during manufacture, causing premature failure. Entire engine/turbocharger was replaced under recall.
61400 mi
US $275
Wastegate actuator frozen, per dealer. Most probably lazy to adjust it. I lost turbo power yesterday and CEL came on. 2 ignition coils damaged by the wastegate had to be replaced too.
63000 mi
US $50
Engine pan seal leaking again after two years, covered under power train warranty after deductible.
66000 mi
US $50
Oil leak from timing chain cover. 5.5 hrs of labor to replace gasket. Invoice billed was $620 to Hyundai by dealer.
69400 mi
Wastegate actuator voltage again out of spec though the part was replaced under a year back for $300. Had to argue with dealer to adjust it under warranty. After fix, no more harsh transmission shits under moderate acceleration.
121000 mi
US $140
Turbo needed adjustment
37000 mi
Replaced waste gate valve on turbocharger
9000 mi
Turbo not working
14220 mi
Replaced solenoid valve.
60 mi
Check Engine Light appeared shortly after arriving home from delivery. Dealer reset it, and said it's nothing to worry about. Check Engine Light appeared shortly after arriving home from delivery. Dealer reset it, and said it's nothing to worry about.
60 mi
Engine started stalling. Valve melted into cylinder. Scratched up the walls and base, and damaged the Turbocharger. Dealership replaced Engine and Turbocharger.
1860 mi
Cylinder 2 misfire; car almost stalling at low revs. Reset check engine light. All cylinders reported normal.
5540 mi
Misfiring; engine light was on. Re-gapped a spark plug.
Low oil pressure light came on. Oil level was good. Dealer replaced oil pressure switch, but computer still thinks there isn't any oil pressure. Car is still with the dealer. Dealer states the chain that operates the oil pump failed. They ordered more parts, but still waiting on a new oil pump to arrive. Car has been with the Hyundai dealer for over 30 days now. It's a U.S. spec car in Germany. Oil pump and other associated parts replaced and vehicle fixed after 5 weeks with a local dealer.
40920 mi
B1S2 O2 sensor replaced.
2000 mi
Check engine light cleared, checked for leak in fuel system - none found. Gas cap not properly sealing Check engine light on. Cleared light, checked fuel system for leaks, gas cap not sealing properly
3500 mi
Check engine light, checked for fuel leaks. Gas cap not sealing properly
7000 mi
Check engine light was on. Replaced gas cap. Did not fix problem
8000 mi
Check engine light was on. Replaced fuel pump, charcoal cannister and other related parts.
82800 mi
US $20
Fuel cap needed replacement. CEL light came back on after only 500 miles. Will be heading back to dealer for diagnosis.
117000 mi
The CEL is still intermittent, I believe it's still the fuel cap. The problem was never fully resolved. It's not on right know (knock wood) and hopefully it stays off!
2000 mi
Check engine light came on upon start up. Remained on through trip though car operated normally. Stayed on next day during morning trip, off during afternoon trip. Problem solved with ECU reflash.
47000 mi
Engine blown. No warning except lifter sound (like marble in a can). Heard only above 1800 RPM under acceleration. Under 1800 car drove normally. No leaks, temp, smoke. KEEP GOOD RECORDS! Would take two months to get new engine, traded.
145000 mi
Complete new Engine
27000 mi
Check engine light on, checked codes and flashed the memory.
Told me it needed a software update and sent me on my way.
35000 mi
Radiator developed a leak. I had noticed coolant drips on the garage floor and figured it was just a loose hose or something like that. Apparently radiator was cracked somewhere. Repaired under warranty same day despite being very busy day.
73000 mi
US $75
Replaced cooling fan assembly because wiring connector burned up and making poor connection.
82000 mi
Engine has started using more than one quart per 1000 miles. Dealer says to continue monitoring but new engine may be necessary. Covered under warranty and part of a well known issue with the 2.4L engine.
88000 mi
Total Engine replacement under warranty
32860 mi
Hi,I noticed I loud ticking noise first then I put my ear up close to block and heard a light grinding sound.They drained the oil to see the block.They said they have to order a new engine block because of piston problem.Only 54,000 miles.
6000 mi
engine would not turn off again
10000 mi
replaced tire pressure sensor(still have porblem of low pressure warning light coming on)
11000 mi
repair noise in exhaust shield (still have the noise)
12000 mi
replaced radio
74400 mi
C $1200
carbon buildup, throttle body cleaning
68000 mi
US $175
Lever connecting starter motor to engine was broken. Car was towed to dealership (which was covered by roadside assistance) and repaired (not covered under warranty)
72000 mi
Engine low on oil with no warning. Point of failure unclear however the engine was replaced
Engine unusually noisy under load -- a type of clattering sound. I suspect pre-detonation, but dealer says sound is normal.
86000 mi
US $72
Carbon Throttle Body cleaning.
78740 mi
C $500
A leak in the oil pain was fixed.
110980 mi
C $800
Spark plugs + other engine maintenance
114700 mi
Hyundai replaced the entire engine due to factory defect recall.
119660 mi
C $800
engine flush
26760 mi
Coolant in ovrflow container continued to lose fluid. Dealer tech said lower coolant hose was pinched, he re-positioned it. Over a yr. later, STILL losing coolant on 5/23/13 at 39301 miles. This time tech discovered "oil cooler tube" was split. Part # 25470-2G000 replaced under warranty. No further problems.
116000 mi
US $1100
Heater core failed catastrophically, steam and coolant in cabin
110000 mi
US $223
Replace serpentine belt.
42000 mi
Connection to ignition switch was loose, causing car to not always start right away with keyless button.
85000 mi
US $279
Check engine light was on; oxygen sensor needed to be replaced.
23700 mi
CEL came on. Second O2 sensor readings were bad. Dealer determined it was bad and is replacing it free under warranty, waited almost two hours to find out what was wrong, now i have to go back in a week for another 1.5 hours to have it fixed
95000 mi
Engine replacement due to engine seizing while driving. Existing recall was in effect, car was towed to nearest Hyundai dealer, I was given a rental, and got the car back with a new engine roughly 45 days later
87000 mi
US $250
Replace, repair starter fork
27200 mi
US $40
Check engine light on. Dealer scanned and determined problem was thermostat. Hyundai has issued a TSB related to the thermostat, thermostat housing, and gasket. Parts not in stock. Dealer ordered parts and will replace under warranty.
Started failed, replaced. Recall work performed on brakes.
28000 mi
US $300
replaced oxygen sensor under factory warranty
38000 mi
Rattling Exhaust
148800 mi
Rod knock noise was heard and engine would shut down past 3.5k rpm. Took it to the dealership and had the long block replaced covered by recall.
36000 mi
Going down the highway and heard a thump from underneath the car. Did not run over anything. Went to the service department and explained what happened. They performed ecm update.
73500 mi
US $649
Originally O2 sensor was bad. Then they told me the catalytic converter was cracked. Repair ordered suggests that they might have damaged it replacing the sensor. Also brake fluid change.
34000 mi
Radiator developed a crack in the plastic below the radiator cap. It was slowly losing fluid. The Radiator was replaced under warrenty at no cost.
15000 mi
O2 Sensor
64000 mi
US $140
Car wouldn't start. Dealer wanted $575 for a new starter (ridiculous). It was only broken plastic starter lever (common sonata problem, cheap part). $12 for new lever, $129 for 3rd party shop labor.
67800 mi
US $50
Sluggish over 60 mph. Check engine light - p0303 - misfire on cylinder 3. Pulled OEM spark plugs, they looked absolutely terrible (supposed to be rated for 100k). Replaced with more OEM iridium plugs. Problem solved.
15000 mi
would not start, new computer installed
15000 mi
US $2
Was told that a transmission TSB was done to my car. I could tell a difference in driving the car, it did seem tighter than before.
68000 mi
oil pan gasket
114000 mi
Replaced entire engine. Engine seized. Covered by factory up to120000 miles.
23000 mi
Push button starter would not work. Parts were replaced and computer flash. This issue was also a recall.
93000 mi
Engine recall Campaign 133
48700 mi
Starter on fire and engine seized replace sensors that failed from previous replacement
77000 mi
US $235
Oxygen sensor went bad again
77500 mi
Engine seized
64000 mi
US $350
Replaced the Starter
30000 mi
starter button needed to be replaced. car would not start because of technical bulletin on this part.
Buzzing noise that we thought was a flex pipe - it was just a fuel line bracket. Part ordered - will be installed soon.
40000 mi
Check engine light cam one on highway - dealer diagnosed a thermostat for which a TSB had apprently just been issued. The thermostat was replaced under warranty. Still have intermittent driver's door window control problem - future visit.
150 mi
Replaced leaking fuel injector on cylinder #3
32000 mi
At 30,000 mile scheduled maintenance visit, I mentioned driveability problems. Throttle body was cleaned and adjusted.
car shuts off at low speeds, sometimes won't start
47500 mi
fuel system computer/electronics
73000 mi
serpentine belt, tensioner pulley replaced
3000 mi
Reprogrammed Software for hybrid drive
3000 mi
Updated Software and replaced part in Hybrid Power System Electrical Connectors in Hybrid Control System need to be replaced.
Dealer had part but not the special tool tool to replace.
3000 mi
CEL light for engine problem came on. It could not be repaired at this time and Hyundai is working on it. No functional problem other than light's glow.
7000 mi
Software updated and problem solved
30000 mi
Computer system received several upgrades to improve drivability. It now runs GREAT.
31000 mi
hybrid generator failed, relay switch had water on it
See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how
frequently 2011 Hyundai Sonata problems occur, check out our car reliability stats.
