The Powertrain warranty coverage for certain engine repairs and/or replacement where the engine damage, defect, or failure is related to connecting rod bearing wear, has been extended to 15 years or 150,000 miles from the date of original retail delivery or date of first use, whichever occurs first, and is valid for original and subsequent owners.
full bulletin at NHTSA ↗2012 Hyundai Santa Fe powertrain problems
severe Owners of the 2012 Hyundai Santa Fe have filed 23 NHTSA complaints about the powertrain, typically surfacing around 21,000 miles at roughly $2,500 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Failure mileage
Complaints
23
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2008 Santa Fe | 20 |
| 2009 Santa Fe | 19 |
| 2010 Santa Fe | 102 |
| 2011 Santa Fe | 17 |
| 2012 Santa Fe (this page) | 23 |
| 2013 Santa Fe | 50 |
| 2014 Santa Fe | 35 |
| 2015 Santa Fe | 22 |
| 2016 Santa Fe | 19 |
2crashes
When does it fail?
Of the 23 powertrain complaints filed for the 2012 Hyundai Santa Fe, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA powertrain complaint has been filed on this vehicle in over 5 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
If you are servicing an applicable vehicle with the following symptoms and DTC, follow the Service Procedure on Page 4. ï· Check Engine light on ï· DTC P0880/P088000 - TCM Power signal error open/short ï· Transmission stuck in 4th gear fail-safe ï· Harsh shift into Reverse and Drive
full bulletin at NHTSA ↗The automatic transmission warranty repair policy authorizes in-dealership repairs of the following components for both OEM (new) and remanufactured automatic transmissions:
full bulletin at NHTSA ↗If you are servicing an applicable vehicle with a âCheck Engineâ light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.
full bulletin at NHTSA ↗If you are servicing an applicable vehicle with a âCheck Engineâ light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and oil pressure harness.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report engine stalling without warning at highway and city speeds, sometimes with check engine lights, sometimes without. The vehicle coasts to a stop and restarts normally after a shutdown, but the unpredictability creates serious safety risks—loss of power steering, inability to merge or maintain speed, and dangerous situations on downhill grades or in traffic. Dealers have applied software updates, replaced throttle bodies (sometimes twice), and updated ECM firmware, yet the stalling persists or recurs within weeks in several cases.
Unintended acceleration is another recurring complaint: vehicles surge or lunge forward without pedal input in stop-and-go traffic and at traffic lights. Owners also describe delayed throttle response requiring hard pedal pressure, and in one case, braking proved insufficient to stop sudden acceleration, resulting in a collision.
Transmission behavior includes unexpected downshifts, violent gear engagement, and a dangerous defect allowing the shift lever to move from Park to Neutral without the key in the ignition or brake pedal depressed.
One owner documented a complete engine failure at low mileage: multiple no-start events, compression testing revealed low compression in 3 of 4 cylinders, and the Hyundai dealer suspected piston ring or cylinder head failure.
Oil leakage from the oil pressure sensing unit appears at mileage under 39,000 miles despite proper maintenance. Highway vibration at 60 mph is also noted.
Same Hyundai Santa Fe powertrain reports on nearby years: 2009 · 2010 · 2011 · 2013 · 2014
Failure modes owners describe
Engine stalls while driving
Complete or near-complete loss of engine power while vehicle is in motion. Engine shuts off without warning at highway and low speeds; restarts after stopping. Multiple reports describe dangerous situations—vehicle coasting to roadside, inability to merge or maintain speed, loss of power steering.
When: Various speeds (15–65 mph); low mileage (17,000) to higher mileage; appears random or intermittent
Symptoms owners cite: Complete power loss or engine stall; Check engine light illuminates; Vehicle coasts to shoulder or stop; Power steering becomes heavy; Restarts normally after shutdown
Codes mentioned: P0223, P0445, P2106, ABS speed sensor codes
Repairs/costs cited: Dealer replaced throttle body assembly (sometimes twice); ECM/computer software updates; dealer unable to replicate or diagnose in some cases
Recalls/TSBs owners mention: TSB issued for throttle position sensor problem; software fix mentioned; Hyundai headquarters refused investigation in at least one case
Unintended acceleration or loss of throttle control
Vehicle accelerates suddenly without driver input, or throttle becomes unresponsive/stuck. Occurs in stop-and-go traffic and during normal driving. Braking may not stop sudden acceleration. Also includes delayed throttle response when starting from stop.
When: Stop-and-go traffic; from traffic lights; low speeds (20 mph); occurs intermittently and increasing in frequency
Symptoms owners cite: Sudden full-throttle acceleration without pedal input; Vehicle lurches forward or surges; No throttle response when gas pedal pressed; Delayed response requiring harder pedal pressure; Brakes insufficient to stop sudden acceleration
Repairs/costs cited: Dealer replaced throttle body; collision damage (radiator) in one case; repairs ineffective or not completed
Recalls/TSBs owners mention: Computer system updates; throttle body replacement
Transmission shift problems or electrical loss affecting drivetrain
Transmission downshifts unexpectedly, fails to respond to throttle, or slams into gear violently. Vehicle loses power and ABS modular activates on its own, misdiagnosed initially as transmission failure. Shift lever allows vehicle to move without key in ignition or brake applied.
When: 79,000 miles; at varying speeds; intermittent
Symptoms owners cite: Downshift into lower gear on its own; Transmission slams violently into gear; Inability to shift out of low gear; Vehicle can shift from Park to Neutral without key or brake; Loss of throttle responsiveness
Codes mentioned: ABS speed sensor codes
Repairs/costs cited: Initial diagnosis: ABS modular activating on its own and electronic stability control electrical failure; estimated $2,900 repair; labor costs partially covered; subsequent repairs ineffective, problem recurred
Recalls/TSBs owners mention: Manufacturer contributed $630 toward repair; warranty denied due to ownership change
Engine no-start or cranks but won't start
Engine fails to turn over or cranks without firing. Occurs intermittently when vehicle is stationary. Multiple diagnostic attempts and component replacements required; compression testing revealed low compression in 3 of 4 cylinders.
When: January 2016, third week onward; repeated episodes; all stationary
Symptoms owners cite: Intermittent no-start condition; Engine cranks but won't fire; Loud noise from valve train when started; Check engine and battery lights not illuminating (initially); Fuel and spark present, compression low
Codes mentioned: P0445, P0261, P0267, P0270, P0264, P0448, P0223
Repairs/costs cited: Battery replaced; crankshaft sensor replaced; Hyundai service found low compression in 3 cylinders and air blowing toward valve cover; suspected piston rings or cylinder head failure
Oil leakage from pressure sensing unit
Oil leaks from the oil pressure sensing unit at very low mileage despite proper maintenance. Requires multiple hours of labor to repair.
When: Under 39,000 miles
Symptoms owners cite: Oil leaking from oil pressure sensing unit
Repairs/costs cited: Multiple hours of labor required; hefty repair cost
Vibration or shaking at highway speeds
Vehicle shakes when reaching cruising speed on highway.
When: At approximately 60 mph
Symptoms owners cite: Shaking at highway speed
Synthesized from 23 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
My 2012 hyundi santa fe stalled on me as I was approaching a traffic light 3 weeks ago.. Last week my check engine oil light came on my dashboard. I took it to a certified mechanic and he said the problem was a rear crankshaft main bearing seal. He has seen this before regarding Hyundai engine problems as well as with the Kia brand. I learned that there will be a recall for my car but it will…
Had powertrain trouble with your 2012 Hyundai Santa Fe?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2012 Hyundai Santa Fe?
It's a meaningful issue. 23 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 21 complaints that reported odometer mileage, most powertrain failures cluster between 9,805 and 56,500 miles, with the median around 21,000. A quarter of owners report trouble before 9,805; a quarter make it past 56,500. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2012/Hyundai/Santa Fe.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.