Service News - The navigation clock and date are incorrect. This is due to a limited GPS receiver capacity resulting in rollover of internal chip memory. The rollover occurred on January 1, 2022 at 12:00AM local time
full bulletin at NHTSA ↗2008 Acura TL electrical problems
severe 13 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
13
Recalls
0
Avg fix
$850
1fire
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical 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.
ServiceNews Article - The clock shows the incorrect time. This issue is due to a limited GPS receiver capacity resulting in "rollover" of the internal chip memory; the "rollover" will occur on January 1, 2022, at 12:00AM local time. As a result, the navigation date and time will be incorrect.
full bulletin at NHTSA ↗DEALER MESSAGE - AHM IS INVESTIGATING CLIENT COMPLAINT OF HANDSFREELINK NOT WORKING OR BATTERY BEING TOO LOW TO START THE ENGINE. PRIOR TO PERFORMING ANY REPAIR, PLEASE SEND SUSPECT PARTS BACK TO AHM.
full bulletin at NHTSA ↗AHM IS INVESTIGATING CUSTOMER COMPLAINT OF THE HANDSFREELINK NOT WORKING OR THE BATTERY BEING TOO LOW TO START THE ENGINE. PLEASE SEND SPECIFIC PARTS TO AHM PRIOR TO ATTEMPING ANY REPAIRS.
full bulletin at NHTSA ↗ENGINEERING REQUEST FOR INVESTIGATION OF THE HANDSFREELINK (HFL) NOT WORKING OR THE BATTERY BEING TOO LOW TO START THE ENGINE.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners report multiple electrical failures across the 2008 Acura TL. The most frequent complaint is rapid battery drain, with some vehicles dead after just one to three days of sitting. Several owners replaced the battery multiple times (six to eight replacements) before discovering the Hands-Free Link module was the culprit—a known issue documented in Acura owner forums. One owner paid $1,000 at a dealership for HFL module replacement, which finally solved the drain.
The main computer has failed due to moisture from AC pipes positioned above it, causing sudden engine shutdown. One vehicle experienced this failure twice—initially repaired, then recurring three years later at 55,000 miles.
Other reported failures include uncontrolled throttle deceleration on the highway (no warning lights), power door locks requiring manual key activation, electric mirror motors moving on their own, engine stalling during acceleration, and one parked vehicle catching fire under the hood. A dealer inspection blamed ignition switch wear from excessive keys rather than investigating deeper electrical issues. No manufacturer recalls or TSBs are mentioned in these narratives.
Same Acura TL electrical reports on nearby years: 2005 · 2006 · 2007
Failure modes owners describe
Main computer short circuit from AC moisture
Engine control module shorted due to moisture from air conditioning pipes positioned directly above the computer, causing sudden stalling. Failure occurred twice on same vehicle—once repaired, then recurred three years and 25,000 miles later.
When: First failure around 30,000 miles; recurrence approximately 55,000 miles
Symptoms owners cite: Vehicle shuts off suddenly while driving; No warning indicator
Repairs/costs cited: Computer replacement; moisture drainage not addressed in either repair
Loss of throttle control during highway driving
Engine decelerated uncontrollably despite accelerator input, reducing speed to under 5 mph on highway without warning. Dangerous condition nearly caused multiple-vehicle collision. No diagnostic codes or warning lights displayed. Mechanic restarted vehicle as temporary fix; root cause not stated in narrative.
When: Unknown mileage
Symptoms owners cite: Speed deceleration uncontrolled despite pedal input; Loss of ability to control vehicle speed; No warning light indicator; No navigation panel messages
Repairs/costs cited: Independent mechanic diagnosis and repair; specific parts/costs not stated
Persistent battery drain
Battery drained completely during idle periods (2–4 days without driving) causing repeated no-start conditions. Battery replaced six times by owner and again by dealer without resolving the underlying drain. No warning lights. Owners report this is a known issue linked to the Hands-Free Link module in 2008 Acura forums.
When: Starting around 20,000 miles; continues across vehicle lifespan
Symptoms owners cite: Battery fails to hold charge during idle periods; Vehicle fails to start after sitting; Battery dead after 1–3 days without driving; No warning light illuminated
Repairs/costs cited: Battery replacement (6–8 replacements across narratives); HFL module replacement ($1,000 parts at dealer in one case)
Recalls/TSBs owners mention: Manufacturer notified in narrative #3; replaced battery instead of diagnosing root cause
Hands-Free Link module failure causing battery drain
Hands-Free Link (HFL) unit failure directly caused battery drain. Module stopped functioning (Bluetooth/cellular system inoperative), and simultaneously caused vehicle battery to discharge rapidly. One owner paid $1,000 for HFL module replacement at dealer. Owners report this is a known systemic issue discussed in Acura owner forums.
When: Starts around 2016 (8 years into vehicle ownership); ongoing
Symptoms owners cite: Hands-Free Link/Bluetooth stops working; Battery drains within 24–48 hours of non-use; Cellular hands-free function inoperative; Module stuck in 'booting up' mode
Repairs/costs cited: HFL module replacement (dealer repair, $1,000 parts mentioned); multiple battery replacements as band-aid
Engine fire under hood
Parked vehicle ignited into flames underneath the hood. Fire department extinguished fire; vehicle completely destroyed. Root cause not identified.
When: Approximately 60,000 miles
Symptoms owners cite: Vehicle caught fire while parked
Repairs/costs cited: Vehicle destroyed; independent mechanic evaluated but no repair details given
Power door lock failure
Door lock system failed, requiring manual key-fob activation to open doors. Failure occurred without warning.
When: Approximately 120,000 miles
Symptoms owners cite: Doors must be opened manually with key fob; Power lock failure
Repairs/costs cited: Not diagnosed or repaired
Engine stall during acceleration
Engine stalled without warning while accelerator was depressed. Engine restarted normally. Dealer inspection found electronic system operating normally and suggested ignition switch failure from excessive keys.
When: Approximately 67,000 miles
Symptoms owners cite: Engine stalls during acceleration; Stall occurs without warning
Repairs/costs cited: Corrected by dealer (specific repair not stated)
Recalls/TSBs owners mention: Dealer suggested ignition switch failure from key wear
Electric mirror motor failure
Both side mirror motors failed, causing mirrors to move and click freely at will without operator input. Occurred simultaneously with HFL battery-drain issue. Dealer replaced both mirror motors as part of $1,000 repair bill.
When: Unknown; occurred with HFL failure
Symptoms owners cite: Mirror motors move and click freely without input; Loss of mirror control
Repairs/costs cited: Both mirror motors replaced by dealer ($1,000 total with HFL module)
Synthesized from 13 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 0 most recent
Had electrical trouble with your 2008 Acura TL?
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 electrical problem on the 2008 Acura TL?
It's a meaningful issue. 13 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Across the 9 complaints that reported odometer mileage, most electrical failures cluster between 45,000 and 80,000 miles, with the median around 70,000. A quarter of owners report trouble before 45,000; a quarter make it past 80,000. 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 $850 for electrical 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 electrical?
No active recalls currently cover electrical 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/2008/Acura/TL.
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.