Service Bulletin - American Honda is extending the warranty coverage on the Piston Rings and Pistons for 2009-11 TSX L4 to 8 years from the original date of purchase or 125,000 miles, whichever comes first. The warranty extension does not apply to any vehicle that has ever been declared a total loss or sold for salvage by a financial institution or insurer, or has a branded, or similar tittle under any state's law.
full bulletin at NHTSA ↗2010 Acura TSX engine problems
moderate 3 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
When does it fail?
Of the 3 engine complaints filed for the 2010 Acura TSX, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
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.
Of the 5 model years of Acura TSX we track for engine problems, this one has the fewest owner complaints on file (3).
No new NHTSA engine complaint has been filed on this vehicle in over 10 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 engine 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.
"Service bulletin - American Honda is extending the warranty coverage on the Piston Rings and Pistons for 2009-11 TSX L4 to 8 years from the original date of purchase or 125,000 miles, whichever comes first. The warranty extension does not apply to any vehicle that has ever been declared a total loss or sold for salvage by a financial institution or insurer, or has a branded, or similar tittle under any stateâÂÂs law."
full bulletin at NHTSA ↗Service bulletin - American Honda is extending the warranty coverage on the Piston Rings and Pistons for 2009-11 TSX L4 to 8 years from the original date of purchase or 125,000 miles, whichever comes first. Under certain specific circumstances the engine may create deposits on the oil control rings, which may lead to increased oil consumption.
full bulletin at NHTSA ↗SERVICE BULLETIN - AMERICAN HONDA IS EXTENDING THE WARRANTY COVERAGE ON THE PISTON RINGS AND PISTONS FOR 2009-11 TSX L4 TO 8 YEARS FROM THE ORIGINAL DATE OF PURCHASE OR 125,000 MILES, WHICHEVER COMES FIRST. UNDER CERTAIN SPECIFIC CIRCUMSTANCES THE ENGINE MAY CREATE DEPOSITS ON THE OIL CONTROL RINGS, WHICH MAY LEAD TO INCREASED OIL CONSUMPTION.
full bulletin at NHTSA ↗"SERVICE BULLETIN - AMERICAN HONDA IS EXTENDING THE WARRANTY COVERAGE ON THE PISTON RINGS AND PISTONS FOR 2009-11 TSX L4 TO 8 YEARS FROM THE ORIGINAL DATE OF PURCHASE OR 125,000 MILES, WHICHEVER COMES FIRST. THE WARRANTY EXTENSION DOES NOT APPLY TO ANY VEHICLE THAT HAS EVER BEEN DECLARED A TOTAL LOSS OR SOLD FOR SALVAGE BY A FINANCIAL INSTITUTION OR INSURER, OR HAS A BRANDED, OR SIMILAR TITTLE UNDER ANY STATES LAW. TO CHECK FOR VEHICLE ELIGIBILITY, YOU MUST DO A VIN STATUS INQUIRY."
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 1 most recent
Tl* the contact owns a 2010 Acura tsx. While driving at any speed, the oil pressure warning light illuminated. The contact mentioned that the vehicle consumed approximately one half quart of oil every thousand miles. There was a manufacturer's recall related to the failure; however, the vehicle was not included. The approximate failure mileage was 25,000.
Common questions
How serious is the engine problem on the 2010 Acura TSX?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 3 complaints filed, engine issues most often appear around 15,203 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine 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 engine?
No active recalls currently cover engine 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.