Electrical System Related Problems of the 2020 Subaru Ascent

Table 1 shows eight common electrical system related problems of the 2020 Subaru Ascent. The number one most common problem is related to the electrical system (68 problems). The second most common problem is related to the battery dead (23 problems).


Recently reported Electrical System problems of the 2020 Subaru Ascent

The Electrical System problem

The pressure sensor coming out of the transmission has failed, and it's pushed transmission fluid throughout the engine harness, transmission harness, the bull harness in the dash and the 02 sensors. All of those have been damaged. The car is now unsafe to drive due to the pressure sensor failing.   Read details...

The Battery Dead problem

Battery goes dead after a series of short trips. Happened once before. Dealer had the car for 3 days and could not reproduce the problem. Intermittent problem, stranding driver in potentially unsafe areas.   Read details...

The Car Will Not Start problem

After being parked in the garage for several days the car failed to start. Upon inspection found the battery completely dead. Nothing had been left on that would have drained the battery, and have had no previous issues.   Read details...


Electrical System related problems in other Subaru Ascent model year vehicles:



Ascent Service Bulletins