Three problems related to car will not start have been reported for the 2015 Acura TLX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Acura TLX based on all problems reported for the 2015 TLX.
Constant battery draining from unknown issue within the electrical system. I am currently on my third car battery after purchasing my car in January 2016 with 108 miles on the car. I have been using a portable battery jumper for the last month because of this on going issue. The car would not start after parking overnight and have caused a disturbance in my life before commuting to and from work, along with to covid19 vaccination appointments. Another issue is the auto start/stop function when pressing on the brake pedal at a red light where the engine is suppose to turn off and back on in order to be gas efficient. I have been forced to turn of the feature due to the car dying completely in at a red light and causing a traffic jam. It has happened multiple times and have caused additional inconvenience in my daily commute. I believe both issues are related and it is an issue with Acura due to multiple individuals across the country when I have done research within Acura Tlx forums.
Push button start often in cold weather will not start car. However, remote engine start function on the remote will work. If car was running and then turned off for a few minutes in cold, the car will not restart unless done through remote start.
Engine failed to restart during 'auto idle-stop/start' at a traffic light on a busy road. In order to restart I had to press the 'start' button multiple times and return the car to 'park' before being able to resume operation.