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2015 Acura

TLX

Auto (S9), 6 cyl, 3.5 L

Acura TLX: best and worst years
2015 Acura TLX
2015 photoMr.choppersCC BY-SA 3.0via Wikimedia Commons

Overview

Drivetrain
Front-Wheel DriveEPA, from EPA, last updated 6/22/2026
Transmission
Automatic (S9)EPA, from EPA, last updated 6/22/2026

Engine & performance

HP
290
Power to weight
0.080 hp/lb
Axle ratio
3.52
Aspiration
Naturally aspiratedEPA, from EPA, last updated 6/22/2026

Efficiency

Smog score
5/10
Real-world MPG
33 mpg, reported by 2 driversabout 8 mpg above the EPA combined estimate
SmartWay certified
No

Dimensions & capacity

GVWR class
Class 1C (4,001 to 5,000 lb)NHTSA vPIC, from NHTSA vPIC, last updated 10/13/2026

Safety NHTSA record NHTSA, model year

Overall crash rating
★★★★★
Rollover rating
★★★★★
Stability control (ESC)
Standard
Forward-collision warning
Optional
Lane-departure warning
Optional
Recalls
6
Owner complaints
343 See on NHTSA
Reported injuries
9

Feature availability

Cameras & visibility

  • Backup camera
    Standard

Driver assist

  • Blind-spot monitor
    Standard

Convenience

  • Push-button start
    Standard

Reported problems NHTSA record NHTSA owner complaints, model year

  • POWER TRAIN30%
  • ENGINE15%
  • ELECTRICAL SYSTEM12%
  • UNKNOWN OR OTHER8%
  • SERVICE BRAKES4%
  • VEHICLE SPEED CONTROL4%

Source: NHTSA owner complaints, 534 total.

Acura TLX: best and worst years

Federal investigations NHTSA record NHTSA defect investigations, model year

  • EA25004Openopened Mar 26, 2025ENGINE AND ENGINE COOLING:ENGINE

    No Restart After Auto Start/Stop Engages

  • EA19001opened Apr 19, 2019AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE

    Electrical overstress

Known issues manufacturer service bulletins, model year

280 service bulletins filed with NHTSA for this model year

  • Jul 7, 2025ENGINEB22-009

    Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the client can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button.

  • Feb 19, 2025ENGINEB24-022

    Service Bulletin - The AWD warning light is on with one or more AWD DTCs having been set due to water intrusion into the electric oil pump motor connector area corrodes the terminals.

  • Sep 4, 2024ENGINEB16-008

    Service Bulletin - Drivers may experience a chirping sound coming from the engine area with the engine warmed up due to the high pressure fuel pump is making a chirp.

  • Jul 5, 2023ENGINE AND ENGINE COOLINGONL6AX07052023

    Owner Notification Letter - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Acura is providing a product update with new PGM-FI software update to fix this issue.

  • Apr 20, 2023ENGINE AND ENGINE COOLINGB23-009

    Service Bulletin - The engine will not crank on the initial startup attempt after the vehicle has been exposed to precipitation and then freezing temperatures. Water can enter the starter motor. In cold temperatures the water can freeze, preventing the starter motor from cranking the engine.

  • Jun 15, 2022ELECTRICAL SYSTEMDefect Code 6T6,

    "Customer letter - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. To ensure your confidence in your vehicle. Acura is extending the warranty coverage for starter and starter relays and a valve adjustment related to this condition to 10 years from the original date of purchase with no mileage limitation. This warranty extension provides coverage for the original owner and any subsequent owners. No action is requir

  • Jun 14, 2022ELECTRICAL SYSTEMDefect Code 6AX,

    "Customer letter - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Acura is providing a product update with new PGM-FI software update to fix this issue. In addition, to ensure your confidence in your vehicle, Acura is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation. This warranty extens

  • Apr 8, 2022ELECTRICAL SYSTEMB22-008

    Service bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.

  • and 272 more

Source: NHTSA manufacturer communications (technical service bulletins).

Warranty manufacturer terms, by make

Basic
4 yr / 50k mi
Powertrain
6 yr / 70k mi
Roadside assistance
4 yr / 50k mi
EV battery
8 yr / 100k mi

Source: www.cars.com as of 2026-06

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.