ENGINEERING REQUEST FOR INVESTIGATION OF THE HANDSFREELINK (HFL) NOT WORKING OR THE BATTERY BEING TOO LOW TO START THE ENGINE.
full bulletin at NHTSA ↗2005 Acura TL engine problems
moderate Owners of the 2005 Acura TL have filed 7 NHTSA complaints about the engine at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
| Model year | engine complaints |
|---|---|
| 2005 TL (this page) | 7 |
| 2007 TL | 5 |
| 2008 TL | 7 |
Among the 6 model years of Acura TL in our records for engine problems, this one ranks #3 by owner-complaint volume.
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.
DEALER MESSAGE - REQUEST FOR PARTS TO INVESTIGATETHE HANDSFREELINK (HFL) NOT WORKING OR THE BATTERY BEING TOO LOW TO START THE ENGINE.
full bulletin at NHTSA ↗SUMMARY TO BE PROVIDED ON A FUTURE DATE.
full bulletin at NHTSA ↗ACURA: THE MALFUNCTION INDICATOR LAMP (MIL) IS ON, WITH DTC P2138 (ACCELERATOR PEDAL POSITION SENSOR A/B INCORRECT VOLTAGE CORRELATION), AND HAVE POOR PERFORMANCE IN ENGINE. MODEL 2004-2008 TL, TSX.
full bulletin at NHTSA ↗Dealer message - American Honda (AHM) is investigating certain 2004-2008 TLs & TSXs with a complaint of the Malfunction Indicator Lamp (MIL) on with the DTC P2138 (Accelerator Pedal Position Sensor A/B Incorrect Voltage Correlation) stored and poor engine performance. To fully understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting any further repair of any kind.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 0 most recent
Common questions
How serious is the engine problem on the 2005 Acura TL?
It's a documented issue but not catastrophic. 7 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 7 complaints filed, engine issues most often appear around 64,693 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.