Electrical System Related Problems of the 2021 Tesla Model Y

Table 1 shows six common electrical system related problems of the 2021 Tesla Model Y. The number one most common problem is related to the electrical system (130 problems). The second most common problem is related to the adas autonomous/self driving (four problems).

Table 1. Electrical System related problems of Tesla Model Y


Recently reported Electrical System problems of the 2021 Tesla Model Y

The Electrical System problem

On August 27, 2026, the 12v/low-voltage battery in my Tesla completely failed without any prior low-voltage warning displayed on the screen or sent to the mobile app. After placing my infant/toddler in their car seat in the rear and closing the door, the vehicle's electronic systems shut down   Read details...

The Adas Autonomous/self Driving problem

The contact's client owns a 2021 Tesla Model Y. The contact stated while they were driving approximately 50-55 mph with the vehicle in self-drive mode, the vehicle veered to the left and crashed into a guard rail. There were no warning indicator lights illuminated.   Read details...

The 12v/24v/48v Battery problem

On August 20th, 2025 at 2:50pm, my eight-month-old infant was trapped inside my Tesla Model Y for approximately 30 minutes due to a critical systems failure. The vehicle experienced an error with the 12v battery that rendered the doors, windows, and trunk completely inoperable, preventing any means   Read details...


Electrical System related problems in other Tesla Model Y model year vehicles:



Model Y Service Bulletins
Model Y Defect Investigations