2012 Hyundai Elantra Problems

What owners report

Owners of the 2012 Elantra most often report airbag and engine concerns, with airbag warning lights staying lit and engine no-start or knocking symptoms appearing across a wide mileage range. Steering column clicking and brake problems, including some that led to fires, also recur in the sampled complaints.

1. 1
   Air bags

   Airbag warning light stays on

   • 102 complaints (16%)
   • median 89,000 mi at 7.1 yrs old (63 state mileage)
   • 8 mention a crash, fire or injury
   • owner-quoted repair $1,021 (median of 16 quotes)
   • filed 2012–2026

   Owners describe the airbag warning light illuminating at start-up or while driving and then staying lit. In some cases a dealer traced it to the passenger seat sensor or the clockspring, and one complaint notes the steering wheel horn and buttons stopped working at the same time. Several owners report the light returns after repairs, and some complain that diagnostics were charged separately. Reported from low mileage up to about 145,000 miles, with many cases between 80,000 and 120,000 miles.

   Recall 13V1150003 related service bulletins

   What to check: Turn the key to on and confirm the airbag light goes out after the self-test; ask whether the clockspring or seat sensor has been replaced and whether any extended warranty coverage applies.

   2 excerpts from owner complaints in NHTSA records

   “The airbag light on my dash came on about a month ago for no apparent reason and I had my car inspected and no codes were shown. The reason for the airbag light is still unknown and I worry that the airbag wont deploy if I get into an accident. I've heard this happening to several different Hyundai Elantra owners and I think there should be a solution for this common problem.”

   NHTSA complaint #11308918, filed 2020-02, 109,500 miles

   “Passenger side airbag light comes on and off all the time that someone is sitting in the seat. There is nothing in the seat or a person. It comes on and off while I am driving or sitting at the light. Most of the time, it does not come on when I first start the vehicle. It was repaired once several years and that was $350.00. That stayed on all the time. I think it is a mfg defect.”

   NHTSA complaint #11396523, filed 2021-02, 2 miles
2. 2
   Engine

   Engine no-start, stalling and knocking

   • 311 complaints (48%)
   • median 63,000 mi at 4.8 yrs old (227 state mileage)
   • 18 mention a crash, fire or injury
   • owner-quoted repair $850 (median of 14 quotes)
   • filed 2011–2026

   Complaints describe the engine cranking with all accessories working but failing to start, sometimes with a single click, and occasionally starting after being pushed or after a wait. Others report knocking or ticking sounds, oil consumption without visible leaks, stalling at speed, and in a few cases smoke or fire from the engine bay. Dealers reportedly suggested oil changes, coil pack replacement or further diagnostics, and some owners say the problem returned. Spread from around 66,000 to over 225,000 miles, with many reports between 80,000 and 150,000 miles.

   2 related service bulletins

   What to check: Listen for ticking or knocking at cold start, check the oil level and look for a fuel smell in the oil, and ask whether the battery, starter and ignition switch have been checked.

   2 excerpts from owner complaints in NHTSA records

   “I have been experiencing failures from my speed control. It moves slow on it own regardless of how high the meter says. When braking the car shakes and then on its own it goes off and all the lights on the dashboard comes on. This has happened to me 3 times on the highway. The engine light also came on recently and now my car vibrates/ shakes when idle or when it starts.”

   NHTSA complaint #11366155, filed 2020-10, 146,817 miles

   “Car was parked and completely off. I put the key in the ignition and turned it partway. All electronic components and headlights came on. I turned the key all the way and it would not start. There was a loud rythmic clicking and each time it clicked all the electronics flickered. Jumping the battery did not work.”

   NHTSA complaint #11372705, filed 2020-11, 102,000 miles
3. 3
   Brakes

   Brake pedal soft or going to the floor

   • 106 complaints (16%)
   • median 77,750 mi at 5.9 yrs old (52 state mileage)
   • 10 mention a crash, fire or injury
   • filed 2012–2026

   Complaints describe a spongy brake pedal that later went to the floor, in one case with no fluid left in the reservoir, and others report brake lights staying on without the pedal being pressed. Several owners mention fires from the front of the vehicle, some after the ABS module recall was announced but before the repair part was available. A clicking noise from the pedal after release is also described. Reported across a wide range from very low mileage up to about 225,000 miles, with several cases between 60,000 and 130,000 miles.

   Recall 23V651000

   What to check: Ask whether recall 23V651000 was completed, check the brake fluid level and pedal feel, and look for signs of fluid leakage around the ABS module.

   2 excerpts from owner complaints in NHTSA records

   “Each time I hit the brakes then release I hear a clicking sound from the brake paddle that makes me nervous that something may be wrong. This happens every time I use the breaks when driving.”

   NHTSA complaint #11386078, filed 2021-01, 90,071 miles

   “The contact owns a 2012 Hyundai Elantra. The contact stated that the brake lights remained illuminated while the vehicle was in motion, without the brake pedal being depressed. The failure persisted for approximately ten days. The vehicle was not taken to the dealer for a diagnostic. The manufacturer was notified of the failure. The vehicle was not repaired. The approximate failure mileage was 106,000.”

   NHTSA complaint #11321832, filed 2020-04, 106,000 miles
4. 4
   Steering

   Steering column clicking and play

   • 48 complaints (7%)
   • median 70,000 mi at 6.8 yrs old (31 state mileage)
   • 6 mention a crash, fire or injury
   • filed 2012–2024

   Owners describe a clunking or clicking noise when turning the wheel, both parked and moving, along with slack or play in the steering. Some say the wheel pulled or veered when going over bumps, and a few had the flexible coupler in the steering column replaced. Complaints note the vehicle was out of warranty and not covered by a recall. Mostly reported between about 80,000 and 130,000 miles.

   What to check: With the car parked, rock the steering wheel gently and listen for a click or clunk, and check for free play before the wheels begin to move.

   2 excerpts from owner complaints in NHTSA records

   “When coming to a stop a pulsating motion, similar to a warped brake rotor, was felt. The steering flex coupler partially disintegrated causing approx. 1/4 turn slack in steering wheel. Coupler was replaced on 8/5/2020. I did not suffer any damage,but I absolutely believe that this design is far more dangerous than the toyota air bag design.”

   NHTSA complaint #11343615, filed 2020-08, 107,000 miles

   “So my car all of a sudden started making a strange popping noise while driving the vehicle. Everytime I would turn my steering wheel at a certain angle the wheel would pop. As I drove the car it would continue to make this awful noise until one day im driving down the road and it popped and the steering jerked my car out of the lane . Driving home the wheel was rather stiff and I worried constantly about getting in an accident . …”

   NHTSA complaint #11317321, filed 2020-03, 133,000 miles
5. 5
   Electrical system

   Battery drain, alarm and instrument failures

   • 41 complaints (6%)
   • median 63,000 mi at 4.0 yrs old (36 state mileage)
   • filed 2013–2026

   Owners report the battery draining overnight, interior and brake lights cycling on and off while parked, and the alarm sounding for no apparent reason, with sensors replaced by the dealer. Others describe the instrument panel going dead while driving or water entering through the overhead area and reaching dash electronics, and several note the car lacks an immobilizer. Mostly reported between about 50,000 and 130,000 miles.

   Recall 20V3930004 related service bulletins

   What to check: Check for water stains on the headliner and carpets, confirm the anti-theft software update and ignition protector were installed, and ask whether the battery has been replaced for drain complaints.

   2 excerpts from owner complaints in NHTSA records

   “Several months ago the car alarm went off for no apparent reason (the car was sitting in our garage and no one was attempting to steal it). When it went off it was very early in the morning...like 2 or 3 am. We tried everything we knew to try to shut it up...finally disconnecting the battery. We took it to our local Hyundai dealer where we were later told that one of the many sensors had gone bad and they would order a replacement part. …”

   NHTSA complaint #11355600, filed 2020-09, 83,000 miles

   “After it rains, ( in motion or standing still ) water comes through the light above sun visor, soaks the driver's side floor front and back, and goes into dash this is causing corrosion to all electrical components in the dash could cause failure to devices and a fire hazard. The touchscreen went black, so I pulled the fuse only to notice the fuses had corrosion. My feet get soaked making the pedals slippery. I did research online only to realize I am not the only one with this problem. …”

   NHTSA complaint #11373571, filed 2020-11, 98,000 miles

Buying note. Ask for records showing the brake and anti-theft campaigns were completed, and have a mechanic check the airbag system, steering column play and oil consumption before purchase.

Summary written with AI from a sample of 60 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.