Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2007 Acura TL owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2007 Acura TL. The contact stated that the battery power was drained after driving the vehicle for less than 48-hours. No warning light was illuminated. The vehicle was taken to an independent mechanic, who determined that the Bluetooth in the vehicle was draining the battery. Bluetooth was disabled, but the failure recurred. The contact had since replaced the battery twice within two months, each time with the same brand of battery. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 90,000.
Vehicle was parked in driveway; had not been driven for 2 hours. Heard a pounding, hammering noise from inside my house and when I entered the driveway the vehicle's engine was running, although it was a very rough idle. There was a smell of something burning coming from underneath the hood. I inserted the key into the ignition to turn off the engine but since the ignition was not in the on, or run, position, to begin with, the key had no effect on the engine (that is, I could neither turn the engine off nor on, using the key), and the vehicle continued to roughly run. I then called the fire department but the vehicle had stopped running when they arrived. However, the fan was running and they thought that was natural after the engine had shut off. …
I bought the car yesterday and while I sitting in the car lot, after purchase, I was setting up the radio and hfl link. This took maybe 10 min or less. During this time a relatively new battery was completely drained. The hfl never even hinted at working to connect to blue tooth. I also have a 2005 Acura TL this kept happening to. The dealer recently told me it's a known problem, but not a recall so inqoukd have to pay to have it fixed. Since it was really expensive to fix he suggested I just remove the hfl link. Which I did from the 2005 TL I have. I haven't had a problem with the battery since. Now this same thing is happening to the 2007. I'm just wondering how long it will be before I have to replace this brand new battery from the hfl link draining it. I can't let the car sit for more than 3 days or it will be completely dead. I would like to have both my 2005 and 2007 hfl working. …
My car sat at airport for approximately a week and would not start upon return. Got a jump and was OK for about a week when again it would not start after sitting in the garage for 3 days. I took the battery to the store for a replacement. He tested this 2 year old battery and it was perfect. I went on-line to search for this problem and the years 2004 through 2007 have a large number of incidences exactly like mine. The problem that the on-line audience has found is that over time a partial short circuit in the hfl (hands free link) module appears. This is clearly a latent defect in this module. I wrote to Acura customer service and their response did not address the specific problem. I got a "cook- book" response that I should bring it to the dealer for them to check it out. Is there anything you can do regarding such latent defects for out-of-warranty vehicles?
Owned this car since new 12 years ago. Battery always drains if not driven in 7 days or so. Constant problem through 4 batteries. Just got a new battery and alternator. Car is garaged. Didn't drive it for 10 days. Dead battery again. Blogs tell me this is extremely common with 2004-2008 Acura TL sedan 6-cyl. Blogs say it is the hands free link of Bluetooth that is a chronic drain whether or not the car is running. So I park it in airport parking, take a trip, come back at midnight, a woman in long-term airport parking, totally unsafe for me, waiting for help to jump the car. Totally unacceptable. Not safe. You need to do something! Next block says "when did this happen" and asks for a specific date. I will use today' s date, but it happens anytime I don't drive it for 7 days or so. The bloggers all have the same identical same problem. This is chronic.
Vehicle won't start after not being used for two days or more. It's been noticed since 2015. Battery was replaced 3 times in ten months. It's a safety hazard that Acura should be addressed/recalled. Went to my car mechanic to have it diagnosed and was told it's the vehicle's hands free module (Bluetooth) that's been causing the drain. I checked online and found out it's been a major issue on this vehicle. Honda/Acura needs to recall this unit before it causes major accident. It is a safety issue that should be fixed immediately.
My 2007 accura TL has a battery drain problem. I have a new interstate battery in it. I park it on our driveway and after 3-5 days of it being parked, not driven, the new battery is drained of power and will not start the vehicle. I have to charge the battery. It starts and will continue to start as long as I drive it to re-charge the battery. This occurs very consistently and has for the past year, on and off.
There is a drain on the battery. We replaced the battery. If the car sits for just an hour or sometimes a few days, it May not start because the battery has drained. We have had to jump it and trickle charge it multiple times. From searching the internet, this is not a new problem for Acura owners. Acura should fix this as so many cars are having the same issue.
My passenger side dash cracked around the airbag. This allows for moisture to get into the airbag compartment which degrades the passenger airbag. Acura refuses to replace. The vehicle was stationary and happened overnight.
Parasitic battery drain. Battery (5 mo old)--no Bluetooth. Battery tested by shop-OK. Acura link site said since 2005, Acura hfl (hands free link) module defective, causing a short in system, thus draining the battery. There is also a service bulletin for this issue. To me, this is not only a safety hazard (dead battery) but a recall item (it has been ongoing problem that hasn't been fixed). The module is located in the roof, which sees extreme temperatures. The dealer knows about this problem and charges $700-$900 to replace the module. The module goes from $285 to $200 on-line and the design has not changed (johnson controls). The time it takes to r&r the module (unplug and plug in) is 10min. I ordered the part and installed myself. …
Electrical complaints in other TL years
Frequently asked questions
How common are electrical problems on the 2007 Acura TL?
NHTSA has 25 complaints about the electrical system of the 2007 Acura TL, 20% of the model year's 124 complaints. The component named most often is 12v/24v/48v battery (2 mentions).
Is there a recall for 2007 Acura TL electrical problems?
No. NHTSA lists no electrical system recall for the 2007 Acura TL, though it has 2 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2007 Acura TL electrical problems start?
Half of the complaints with a recorded mileage happened before about 78,000 miles, and 13% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 0 injuries to electrical system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.