Three problems related to car will not start have been reported for the 2017 Subaru Forester. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 Subaru Forester based on all problems reported for the 2017 Forester.
In Nov 2019 we left the car parked for a week at the cruise terminal while stationed overseas in italy. We we came back, the car wouldn't start and had jumped. Over the next several days the car had difficulty starting and we ended up taking the car to the Subaru dealership in frosinone, italy. The service technician said the battery needed to be replaced and that we were not the first forrester owners to have the battery replaced.
Battery drains so that car won't start. After having a new battery installed, the battery is still so weak that the car will not start, and the electrical power is completely drained. Even the clock has to be reset. This started around 35,000 miles. I stopped for gas after driving for an hour, and the car won't start without a jump.
First time, I was driving in the middle lane on interstate at highway speed, all of sudden the accelerator would not respond, the car panel went black, no lights or info showed. I coasted off to the side of the road, the car was in drive, ignition on. The emergency light wouldn't go on. I shut the car down and into park and waited a couple of minutes and restarted the engine without a problem. Second time, I was driving in the middle lane on interstate at highway speed, all of sudden the accelerator would not respond, the car panel went black, no lights or info showed. I coasted off to the side of the road, the car was in drive, ignition on. The emergency light wouldn't go on. I shut the car down and into park and waited a couple of minutes but car would not restart. I rocked the car side to side and the car started. I took to the dealer, they pressure tested fuel pump and found a slight pressure drop once during the test. Replaced fuel pump at 18,000 miles.