2018 Tesla Model 3 visibility/wiper problems

“Incident / Safety Defect Summary: A certified Tesla mobile service technician improperly calibrated the low-beam headlights on my 2018 Tesla Model 3, causing a severe reduction in forward night visibility and creating an immediate roadway crash hazard in direct violation of FMVSS 108 illumination standards. Detailed Description of the Safety Failure: Improper Calibration Environment: The technician attempted to perform the headlight alignment procedure inside a closed residential garage with approximately 12 inches of clearance between the front bumper and the garage door. Standard automotive and manufacturer procedures require either a level 25-foot standoff from an aiming target or a dedicated optical aiming tool. At 12 inches, optical beam geometry and cutoff steps cannot be evaluated. Extreme Downward Misadjustment: The technician bypassed standard cutoff alignment and manually adjusted both headlights down to their absolute lowest mechanical limit using the vehicle interface. Safety Impact: The usable beam throw is now restricted to only a few feet in front of the vehicle's bumper. At standard driving speeds, especially during early morning and nighttime…”

“After downloading Tesla’s update (no. 2025.44.25.4) software my heater (with the window defrost functionality) in winter stopped operating. I made my update while at my nearest Tesla service compound (location verifiable per system location log) on 01/25/26 when that same day software began throwing HVAC error codes with blowing cold air, when previously my heat ran well. This is not coincidental; this is system design failure.”

“The front and rear windshields of my Tesla Model 3 developed long cracks requiring full replacement. For over six months, I have been unable to complete these replacements due to repeated failures in the replacement process. The vehicle and damaged glass are available for inspection upon request. My insurance claim was filed with Esurance, and Safelite AutoGlass, Esurance’s designated auto glass provider, has handled all replacement attempts. During this period, three shipments of glass arrived damaged and two shipments were the incorrect glass for my vehicle, resulting in canceled or rescheduled appointments. Safelite has documentation of these failed attempts. Driving with cracked front and rear windshields puts my safety and the safety of others at risk. The damage impairs visibility, especially in rain or low-light conditions, and compromises windshield integrity, which is critical for vehicle structural support and proper airbag deployment. The rear windshield damage also raises concerns about sudden glass failure while driving. The issue has been reproduced and confirmed multiple times by Safelite AutoGlass, an independent service center. While waiting…”

“The center display (Vehicle Pad) on my 2018 Tesla Model 3 went completely blank while driving. This eliminated access to all vital driving information including the speedometer, gear selection, and safety indicators. Safety Concern: Without visible speed data and wipers the vehicle cannot be operated safely or legally. I attempted to reboot the system and power cycle the vehicle but the screen still failed.”

“1. PTC Heater, old part is available for inspection 2. PTC heater failed while driving, experienced loss of power and slow loss of secondary electrical systems (the 12v battery was not able to recharge itself with the PTC heater not functioning). When attempting to restart car after pulling into a parking lot, the entire car died (12V battery was drained so it couldn't start up) and had to get towed to Tesla service center. PTC heater is critical for car to operate as it is closely linked to 12V battery. Additionally, without PTC heater car cannot defog windshield, resulting in potentially poor visibility. 3. Dealer replaced the defective part (PTC heater) and had to replace 12V battery as well. Was not covered under warranty and I had to pay the cost out of pocket. 4. Inspected by manufacturer and replaced. 5. Got warning signs about reduced power available, and secondary electrical features were limited.”

“1. There is an open recall since Dec 2021 (21V-00D) which Tesla has still not fixed! 2. The automatic wiper system on the car is unsafe as it takes a long time to activate when its raining, and sometimes it activates without any rain!”