2012 Kia RIO Problems

What owners report

Owners of this model year most often describe airbag or SRS warning lights, engine oil consumption, and the engine revving or accelerating without throttle input. Other complaints describe smoke or fire from the engine or wiring, and hesitation or stalling, and some reports come from crashes or near misses. Oil use tends to build gradually with mileage, while the revving and fire reports describe sudden events, and mileage varies widely across the sample.

1. 1
   Air bags

   Airbag warning light on, or airbags not deploying

   • 13 complaints (24%)
   • median 82,616 mi at 5.7 yrs old (8 state mileage, few)
   • 2 mention a crash, fire or injury
   • filed 2013–2026

   Owners describe the airbag or SRS warning light turning on at startup or staying on, sometimes together with the ABS warning light. Some say the dealer found an airbag sensor fault and replaced it, while others were quoted high repair costs, including after the warranty had expired. Some crash reports say the airbags did not deploy. Where mileage is given it ranges from about 12,000 to 100,000 miles, and a complaint notes the warranty had just expired.

   What to check: Ask a shop to scan for stored airbag codes and confirm the fault before buying, and check whether the warning light is on at startup. Ask whether a repair would be covered under warranty, since some owners were quoted high costs.

   2 excerpts from owner complaints in NHTSA records

   “I was driving in the rain, going about 55-60 MPH, when all of a sudden the car in front of me slammed on its brakes and attempted to make a left turn (like they almost missed the street and tried to compensate last minute) I slammed on the breaks but could not stop in time and hit the car in front of me. The seatbelt didn't catch, nor did the airbag deploy, and my head hit the steering wheel, chin first.”

   NHTSA complaint #10860642, filed 2016-04, 78,000 miles

   “I'm at 96k miles. The mechanic pulls codes for the airbags. They are showing a defect and the reason is unknown. I'm also hearing a rattling in the engine. We are discovering it is common in Kia RIO and the reason Kia gives is we are getting our oil changes done at places other than them. I used only experienced, licensed mechanics. The issue continues to go undiagnosed as to know if the engine will catch fire causing death or injury. The car is not safe. A fix need forced.”

   NHTSA complaint #11320096, filed 2020-04, 97,205 miles
2. 2
   Engine

   Engine burning oil, frequent oil top-ups

   • 11 complaints (20%)
   • median 112,000 mi at 7.5 yrs old (5 state mileage, few)
   • 1 mention a crash, fire or injury
   • filed 2018–2026

   Owners describe engine oil consumption, with some having to add oil every week or two and others reporting the oil light coming on while driving. Some say the dealer ran a consumption test and recommended an engine replacement, while others say the dealer offered little help or that the oil level was reported as overfilled during service visits. Some complaints describe the problem continuing after the warranty ended. Where mileage is given, most reports fall between about 100,000 and 150,000 miles, with some describing oil use starting near 70,000 miles.

   5 related service bulletins

   What to check: Ask for the oil consumption history and any dealer records, and check the oil level and engine for leaks during a pre-purchase inspection. Ask whether any oil consumption service bulletin for this engine has been checked, since bulletins on this symptom exist for these engines.

   2 excerpts from owner complaints in NHTSA records

   “About 3 mths ago started using oil 3 qts extra the went to a qt a week, now using a quart every other day, have had people check. Cant find out where oil is going, have parked it, also, airbag light came on about 4mths ago, Kia RIO has 114,000. The caliber froze up at 88,000 the brake pads kept wearing on left side, now the right starting to wearing more...I have the gold autoguard warranty up to 120,000 with hendrick chevrolet, took it in on appt. Day n time, had 30 cars ahead. I have also learned. …”

   NHTSA complaint #11210046, filed 2019-05, 100,000 miles

   “I have a 2012 Kia RIO and over the last 2 months the oil light spontaneously comes on and turns off while driving. I took it into a Kia dealership and they did a consumption test which indicated the engine is consuming a lot of oil. I was told I need a brand new engine. This car was purchased new, currently has 112k miles (mostly highway) on it. The dealership offered me nothing. They want to charge me for a brand new engine with a 6m /12m warranty costing me $3900 / $4400 for repair or an engine w 95k miles for $3600 / $3900 for repair. …”

   NHTSA complaint #11144971, filed 2018-11, 112,000 miles
3. 3
   Vehicle speed control

   Engine revving or accelerating without pedal input

   • 11 complaints (20%)
   • median 65,250 mi at 5.0 yrs old (10 state mileage)
   • 2 mention a crash, fire or injury
   • filed 2014–2022

   Owners describe the engine revving or the car accelerating on its own, sometimes at startup, while parked, or after a stop, and in some cases the car moved in reverse without throttle input. Some reports describe crashes or near misses, and some owners say the only fix in the moment was restarting the engine. According to the complaints, the dealer or a mechanic was often unable to reproduce the problem during inspection, and some cars were repaired for transmission service without ending it. Where mileage is given it ranges from about 28,000 to 105,000 miles, and some events happened at startup or while the car was stopped.

   What to check: On a test drive, check that the throttle responds smoothly from a stop and that the engine idles steadily once warm. Ask whether the diagnostic records include any stored throttle or electronic throttle body codes, since a complaint links an overspeed event to dirty connectors at the throttle body.

   2 excerpts from owner complaints in NHTSA records

   “My problem is similar to another post on this website. My car would rev high on the rpms when starting it while in park and I would have to put my toe under the gas pedal to stop it and it would have to be repeated if it was still doing it while the car was moving, otherwise the car feels like it is pushing forward. …”

   NHTSA complaint #10872511, filed 2016-06, 52,000 miles

   “My 2012 Kia RIO began to accelerate on its own without my foot on the gas to 60mph on a city street. I almost got into an accident. When the tow truck showed up to take my car to dealership, we started the car and the problem subsided. The tow truck driver told me that he would have to charge me for the tow since the problem isn't currently taking place, and Kia said I would get the bill for inspection since the problem isn't able to be replicated. …”

   NHTSA complaint #10662263, filed 2014-12, 66,500 miles
4. 4
   Engine

   Smoke or fire from the engine or electrical wiring

   • 13 complaints (24%)
   • median 97,205 mi at 7.1 yrs old (9 state mileage, few)
   • 9 mention a crash, fire or injury
   • filed 2012–2026

   Owners describe smoke and then flames from the engine compartment, in some cases while driving and in others after the car was turned off or parked. In some reports the car was destroyed and the fire department was called. Some complaints say the dealer confirmed an electrical fire in the steering column, while others say the cause of the fire was not determined. Mileage varies widely across these reports, up to about 180,000 miles, and some fires began after the car was turned off or parked.

   Recall 23V652000

   What to check: Ask whether the brake control module recall 23V652000 has been checked, since its text describes a possible electrical short that can lead to an engine compartment fire. Check the engine bay and wiring for heat damage, and ask for vehicle history records showing any fire or total-loss claims.

   2 excerpts from owner complaints in NHTSA records

   “Driving car at about 60 MPH and car began to smoke. Got out on side of highway lifted hood and everything was on fire. People assing by along with hero and fire dept made sure flames were put out . I never made any modification to vehicle and we keep it serviced. Feel like problems are with manufacture wiring. I have done insurance claim and contacted manufacture. The miles are aprox 102k”

   NHTSA complaint #10903822, filed 2016-09, 60 miles

   “My 2012 Kia RIO caught fire the other day. I pulled into the driveway, went into the house to put my laptop down. I had shut the car off. Came back out to grab some stuff from the trunk and the car was smoking from the hood. Thought it had overheated. Pulled hood release and went to open the hood when I realized flames were coming from the right side of the engine area. Tried putting the fire out with a garden hose & was instructed by 911 to get away from the vehicle. Car ended up bursting into flames. …”

   NHTSA complaint #10565984, filed 2014-02, 17,000 miles
5. 5
   Engine

   Hesitation, stalling or loss of power

   • 9 complaints (17%)
   • median 80,300 mi at 6.2 yrs old (7 state mileage, few)
   • 2 mention a crash, fire or injury
   • filed 2014–2026

   Owners describe a delay or lack of response when pressing the accelerator, such as the car idling into traffic before pulling away, or failing to speed up past a certain speed. Others describe the engine losing power or RPM and stalling, sometimes at idle, and in some cases the car will no longer start afterward. Some complaints say the check engine light was on, and that the delay mostly happens once the engine is at operating temperature after a short stop. Where mileage is given it ranges from about 11,700 to 120,000 miles, and some of these symptoms appear once the engine is warm or after a stop.

   What to check: During a test drive, check for a delay when pulling away from a stop and whether the engine idles steadily once fully warm. Ask for any stored engine codes and records of engine or fuel-system repairs, since some owners had the check engine light on.

   2 excerpts from owner complaints in NHTSA records

   “I filled up with gas and was leaving the gas station. I hit the accelerator to pull out and the car didn't go. It idled out into traffic, on the road but it wouldn't go. It took about 3-4 seconds before it would take off. Since then it has happened multiple times. It mostly happens when the engine is at operating temp and you stop for a couple of minutes.”

   NHTSA complaint #10626366, filed 2014-08, 59,500 miles

   “Loss of RPM in cars tachometer during driving, then loss power, then car stalled at idle. Now the car doesn't start (work) anymore during ignition. Car now totally failed to start.”

   NHTSA complaint #11315992, filed 2020-03, 97,066 miles

Buying note. For this model year, buyers may want to check the oil level and oil use history, confirm that the airbag and ABS warning lights are off, and ask whether the brake control module recall 23V652000 has been completed. Ask for service records showing any oil consumption, throttle, or stalling diagnosis before purchase.

Summary written with AI from a sample of 50 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.