2014 Tesla Model S lights problems

Filed May 1, 2026 · Engine, Lights · TX

Motor suddenly failed after a required update while driving, nearly causing a crash with multiple commercial vehicles and pedestrians, leaving brake lights dangerously always on and alarm sounding, killed 12v as well.

Filed Dec 17, 2025 · Electrical, Lights · OR

I am the current owner of a 2014 Tesla Model S equipped with MCU1. While driving, including at freeway speeds, the center touchscreen has rebooted unexpectedly, showing only the Tesla logo before recovering. During these reboots, critical vehicle functions are unavailable, including the rearview camera, HVAC/defrost controls, and other essential features. This failure matches the exact safety defect described in the federal safety agency Recall 21V‑035 related to the MCU/eMMC failure. I reported this safety issue to Tesla Service and provided photo evidence of the screen rebooting while driving. Tesla has refused to address this as a recall or safety repair. Tesla claims the recall was previously completed under a prior owner but refuses to provide any documentation proving that the recall repair was actually performed, citing prior owner privacy. Tesla has further stated that diagnosis of this active safety defect would be customer-paid due to the basic warranty being expired and has indicated that the only path forward is a paid infotainment upgrade. Tesla is effectively requiring payment to diagnose and resolve a known safety defect. As the safety defect is actively occurring while driving and Tesla has marked the recall as complete without providing proof or correcting the issue, I am requesting the federal safety agency review whether Tesla is improperly closing out recalls without ensuring the defect has been remedied and whether charging customers to diagnose known safety defects is appropriate. After entering my VIN into the federal safety agency’s recall lookup, the federal safety agency shows Recall 21V‑035 (MCU/eMMC failure) as Recall Incomplete for my vehicle. This directly contradicts Tesla’s claim that the recall was previously completed. Tesla has refused to provide documentation and is requiring paid diagnosis and a paid infotainment upgrade despite the recall being listed by the federal safety agency as unresolved.

Filed Aug 13, 2025 · Driver assistance, Lights · 100,000 miles · VA

The contact owns a 2014 Tesla Model S. The contact stated while driving at various speeds, the digital screen intermittently blacked out and several safety features were inoperable. No warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed and determined that the resort block remained at 90%, and the same EMMC ID that should have been covered under the federal safety agency Campaign Number: 21V035000 (Back Over Prevention, Visibility, Exterior Lighting); however, the VIN was not included. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 100,000.

Filed Jan 13, 2024 · Lights · TX

Defective brake light seal went bad, brake light is filling with water and broke red LEDs right away, family is now not safe from rear colissions and Tesla wants $1000. Thank you

Filed Jul 25, 2022 · Electrical, Lights · FL

My 2014 Tesla Model S is an unsafe vehicle as my dash goes black constantly and I lose control of the car safety items included in the dash panel such as speed, back up camera, visibility and power train. I have complained many times but Tesla does not respond with results that will make the car safe again.

Filed Feb 14, 2022 · Driver assistance, Lights · CA

The contact owns a 2014 Tesla Model S. The contact received notification of the federal safety agency Campaign Number: 21V035000 (Back Over Prevention, Visibility, Exterior Lighting) however, the part to the recall repair was unavailable. The contact took the vehicle to a local dealer and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated she was unable to start the vehicle and the battery was replaced. The manufacturer had not been made aware of the failure. Parts distribution disconnect. The failure mileage was unknown.

Filed Dec 2, 2020 · Electrical, Lights · 149,000 miles · CA

My suspension is constantly making sounds and after taking to tesla it was 3rd time it has been determined that the fore link, control arm and bushings have gone out. I repaired it and now seems the problem is back

Filed Oct 8, 2020 · Driver assistance, Electrical · CA

Tesla cpu failure is causing car to have issues. Bluetooth will not connect, car will not unlock, lights do not work- either are stuck on or off, blinkers do not work, back up camera does not work, air conditioning is stuck on which drains battery, cannot charge the car when it is not responding as charging port will not unlock. Car has essentially turned into a brick with <60,000 miles. Very disappointed in tesla. These happen both when vehicle is moving and stationary.

Filed Sep 28, 2020 · Lights · 49,000 miles · SC

Large screen stopped responding, turn signals stopped working. Had to pull over and reboot. Next day screen showed a lot of artifacts and I had to reboot again to remedy.

Filed Sep 4, 2020 · Lights, Suspension · 156,000 miles · NC

The center screen turned off, and the climate control system, traction control, steering control, and most others systems could no longer be changed from what appears to be random settings. I believe this is referred to as either the emmc or mcu failure. Tesla's roadside assistance would not tow the car and told me to drive it to the service center. The service center says the repair is not covered by the 8 year unlimited mile warranty because the drive train is not affected however you cannot control the drive train or suspension system without the center screen. Tesla wants $1400 to replace the mcu with one they admit will eventually fail.