2016 Tesla Model S problems

VEHICLE SPEED CONTROL

This complaint covers a 13-month continuous chain of severe electrical system failures stemming from a deficient federal safety recall remedy on my vehicle's Media Control Unit (MCU) architecture. Tesla's corporate policy has been to replace only the isolated center screen explicitly tracked by the recall while leaving connected legacy components intact on mismatched architecture. This creates an uneven electrical strain loop that has systematically destroyed my vehicle’s electronics over the last year.In July 2025, the initial recall failure required a VCM processor card swap. In September 2025, the resulting voltage strain forced a center navigation screen upgrade, during which the facility held my car for two full weeks. In December 2025, this continuous parasitic power drain burned out my 12V auxiliary system, forcing me to pay out of pocket for a replacement battery. Now, in August 2026, the 2016 dashboard instrument cluster has completely blacked out while traveling at highway speeds (70 MPH), leaving the vehicle completely illegal and unsafe to drive with zero speedometer visibility.The service facility is actively attempting to evade its 12-month workmanship and parts warranty obligations. Their official technician notes confirm the dashboard screen arrived completely black, yet their recorded remedy was to execute a temporary software reboot and officially instruct me in writing to 'perform scroll wheel resets as needed' while actively operating the vehicle on public highways. Following my official written rejection of the vehicle due to this safety hazard, the local facility even attempted an unauthorized forced delivery transport of the vehicle to my house to hide their failed repair before turning back. They are using temporary software patches to run down the remaining days on my parts warranty and dodge an incomplete federal recall remedy. I am requesting a formal federal investigation into this facility.

NHTSA complaint #11757143 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

This complaint covers a 13-month continuous chain of severe electrical system failures stemming from a deficient federal safety recall remedy on my vehicle's Media Control Unit (MCU) architecture. Tesla's corporate policy has been to replace only the isolated center screen explicitly tracked by the recall while leaving connected legacy components intact on mismatched architecture. This creates an uneven electrical strain loop that has systematically destroyed my vehicle’s electronics over the last year.In July 2025, the initial recall failure required a VCM processor card swap. In September 2025, the resulting voltage strain forced a center navigation screen upgrade, during which the facility held my car for two full weeks. In December 2025, this continuous parasitic power drain burned out my 12V auxiliary system, forcing me to pay out of pocket for a replacement battery. Now, in August 2026, the 2016 dashboard instrument cluster has completely blacked out while traveling at highway speeds (70 MPH), leaving the vehicle completely illegal and unsafe to drive with zero speedometer visibility.The service facility is actively attempting to evade its 12-month workmanship and parts warranty obligations. Their official technician notes confirm the dashboard screen arrived completely black, yet their recorded remedy was to execute a temporary software reboot and officially instruct me in writing to 'perform scroll wheel resets as needed' while actively operating the vehicle on public highways. Following my official written rejection of the vehicle due to this safety hazard, the local facility even attempted an unauthorized forced delivery transport of the vehicle to my house to hide their failed repair before turning back. They are using temporary software patches to run down the remaining days on my parts warranty and dodge an incomplete federal recall remedy. I am requesting a formal federal investigation into this facility.

NHTSA complaint #11757143 — an unverified report by a vehicle owner.

LATCHES/LOCKS/LINKAGES

The contact owns a 2016 Tesla Model S. The contact stated that while driving approximately 55 MPH, the hood inadvertently opened and blocked the windshield. The vehicle was pulled over to the side of the road while the windshield was blocked. The hood was securely closed after several attempts. Upon inspection, the contact became aware that the hood was bent, and the hood arms were bent. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 131,700.

NHTSA complaint #11755932 — an unverified report by a vehicle owner.

STEERING

While driving my vehicle straight approaching an intersection, I lost complete steering capability and feedback from the steering wheel. The lower intermediate shaft on the steering column complete separated from the splines on the rack and pinion. If I wasn't already preparing to stop at the stop sign this could have happened while driving on a curve in the road or at high speeds on a highway. The car was taken to a Tesla service center for repair (towed at my expense). I was told by the service representative that this is issue was not a safety issue nor product fault of Tesla's and the repair would need to be out of pocket ($8,500). There were no indicator lights nor warnings of a steering problem prior to the incident. Tesla has a known safety service bulletin for this model which states the u-joint on the intermediate shaft may become corroded and seize due to exposure to wintery conditions forcing binding in the steering wheel, and this issue is not considered a safety risk. It does not state the shaft may come off while driving the car.

NHTSA complaint #11752027 — an unverified report by a vehicle owner.

STEERING

While driving my vehicle straight approaching an intersection, I lost complete steering capability and feedback from the steering wheel. The lower intermediate shaft on the steering column complete separated from the splines on the rack and pinion. If I wasn't already preparing to stop at the stop sign this could have happened while driving on a curve in the road or at high speeds on a highway. The car was taken to a Tesla service center for repair (towed at my expense). I was told by the service representative that this is issue was not a safety issue nor product fault of Tesla's and the repair would need to be out of pocket ($8,500). There were no indicator lights nor warnings of a steering problem prior to the incident. Tesla has a known safety service bulletin for this model which states the u-joint on the intermediate shaft may become corroded and seize due to exposure to wintery conditions forcing binding in the steering wheel, and this issue is not considered a safety risk. It does not state the shaft may come off while driving the car.

NHTSA complaint #11752028 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Instrument cluster and/or infotainment systems frequently freezing or not showing anything. Instrument cluster freezing/blackout This is a daily occurrence making it impossible to to know if you are in drive, reverse, or neutral. Additionally you not know how fast you are going, charge level, nor any status lights (airbag, low tire, etc.). Infotainment systems freezing/blackout This is also a daily occurrence shutting down environmental controls, backup cameras, speakers, charging, etc. While neither of these issues inhibit the operation of the vehicle both make driving a significant risk. I have taken it in for repair and the only option is a $1,500 upgrade to a completely new system.

NHTSA complaint #11748697 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

On 6/11/26, around 2:10 pm, when i was slowly pulling over to park on a road side, the car suddenly rushed forward unexpectedly. It was so powerful, at the time I could only hear the panic reactions from the two passengers and sense the imminent collision with the parked bmw in the front of several car length away. Right before the collision i steered the wheel to the right to avoid the bmw and my car came to violent halt less than a foot next to the bmw. I came out of my car to check the tire position before backing out to park a bit behind. This was on a country road, a Thursday afternoon with not much traffic. There was no distraction. If not were the enough spacing i would have no doubt crashed into the bmw in the front. When the dust settled, I did a "power off" reset to the model S and drove the rest of the day normally without any incidents. I went to Tesla service center near where i live the next morning, 6/12/26, to report it. They asked the precise time the incident occurred. But did not inspect the car. I was told an inner inquiry will be opened and it would take at least a few days. They said i could continue to drive the car normally which i have not because of not knowing what had caused it. I went to the service center today 6/29/26 after more than two weeks of no feedback. I was very disappointed in the answers given. The guy said basically based on the design of the car the incident could not have been caused by the car ,without providing any info as to what had been found from the promised inquiry. There was no written report on this. The person offered to check the brakes but also said he did not think its necessary. Just to made me feel better he said. At last, he provided the tesla web site to request "private data" during time window of the incident. I told him i will seek help from NHTSA now that tesla is not. I was told by AI, tesla has collected data on every car they sold to the details that can reveal how the paddles were pressed.

NHTSA complaint #11747285 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

On 6/11/26, around 2:10 pm, when i was slowly pulling over to park on a road side, the car suddenly rushed forward unexpectedly. It was so powerful, at the time I could only hear the panic reactions from the two passengers and sense the imminent collision with the parked bmw in the front of several car length away. Right before the collision i steered the wheel to the right to avoid the bmw and my car came to violent halt less than a foot next to the bmw. I came out of my car to check the tire position before backing out to park a bit behind. This was on a country road, a Thursday afternoon with not much traffic. There was no distraction. If not were the enough spacing i would have no doubt crashed into the bmw in the front. When the dust settled, I did a "power off" reset to the model S and drove the rest of the day normally without any incidents. I went to Tesla service center near where i live the next morning, 6/12/26, to report it. They asked the precise time the incident occurred. But did not inspect the car. I was told an inner inquiry will be opened and it would take at least a few days. They said i could continue to drive the car normally which i have not because of not knowing what had caused it. I went to the service center today 6/29/26 after more than two weeks of no feedback. I was very disappointed in the answers given. The guy said basically based on the design of the car the incident could not have been caused by the car ,without providing any info as to what had been found from the promised inquiry. There was no written report on this. The person offered to check the brakes but also said he did not think its necessary. Just to made me feel better he said. At last, he provided the tesla web site to request "private data" during time window of the incident. I told him i will seek help from NHTSA now that tesla is not. I was told by AI, tesla has collected data on every car they sold to the details that can reveal how the paddles were pressed.

NHTSA complaint #11747285 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

On 6/11/26, around 2:10 pm, when i was slowly pulling over to park on a road side, the car suddenly rushed forward unexpectedly. It was so powerful, at the time I could only hear the panic reactions from the two passengers and sense the imminent collision with the parked bmw in the front of several car length away. Right before the collision i steered the wheel to the right to avoid the bmw and my car came to violent halt less than a foot next to the bmw. I came out of my car to check the tire position before backing out to park a bit behind. This was on a country road, a Thursday afternoon with not much traffic. There was no distraction. If not were the enough spacing i would have no doubt crashed into the bmw in the front. When the dust settled, I did a "power off" reset to the model S and drove the rest of the day normally without any incidents. I went to Tesla service center near where i live the next morning, 6/12/26, to report it. They asked the precise time the incident occurred. But did not inspect the car. I was told an inner inquiry will be opened and it would take at least a few days. They said i could continue to drive the car normally which i have not because of not knowing what had caused it. I went to the service center today 6/29/26 after more than two weeks of no feedback. I was very disappointed in the answers given. The guy said basically based on the design of the car the incident could not have been caused by the car ,without providing any info as to what had been found from the promised inquiry. There was no written report on this. The person offered to check the brakes but also said he did not think its necessary. Just to made me feel better he said. At last, he provided the tesla web site to request "private data" during time window of the incident. I told him i will seek help from NHTSA now that tesla is not. I was told by AI, tesla has collected data on every car they sold to the details that can reveal how the paddles were pressed.

NHTSA complaint #11747285 — an unverified report by a vehicle owner.

STEERING

I was driving straight down a road at 10 mph approaching a stop sign. When I lost complete control of steering, the steering wheel was completely free. Moving with no response to the wheels. There was zero warning lights or check engine notifications. The intermediate shaft in the steering column completely disconnected from the rack and pinion with both the upper and lower bolts still attached to the intermediate shaft. I was able to stop the vehicle but it remained in the middle of the traveling lane of the road due to zero steering capability. I called AAA to have the vehicle moved out of the public street and towed to my residence. Tesla has a service bulletin for this part stating it needs to be replaced with a new upgraded part but it is not a voluntary recall as they stat it is not a safety or life threatening risk.

NHTSA complaint #11745790 — an unverified report by a vehicle owner.

SUSPENSION

The contact owns a 2016 Tesla Model S. The contact stated that approximately six days after purchasing the vehicle, while driving approximately 45 MPH, the vehicle drove over a bump in the road, and a grinding sound was heard coming from the vehicle. The contact stated that after driving over a bump in the road, the vehicle felt different while driving. The vehicle was taken to an independent mechanic, who reportedly observed significant corrosion and rust affecting the suspension system and advised the contact that all suspension components needed to be replaced. The independent mechanic advised the contact not to drive the vehicle due to safety concerns and indicated there might be structural damage to the vehicle. The contact stated that after the suggestion, the contact continued operating the vehicle. The following day, the vehicle was taken to the dealer where the vehicle was purchased, and the contact was advised that the failure was associated with worn brake pads. The dealer replaced the brake pads. The contact believed that additional repairs may have been performed but was not advised of any other work completed. The vehicle had not been modified and had not been inspected by Tesla. The contact believed that the vehicle may have an inaccurate odometer reading; however, no evidence was available to support the concern. The contact remained concerned that the corrosion and possible structural damage might exist within the suspension system even though the brake pad was replaced. The failure mileage was approximately 108,000.

NHTSA complaint #11744540 — an unverified report by a vehicle owner.

SUSPENSION

Driver side rear control arm broke in half propagating along what appears to be a weld seam line for this hollow aluminum suspension part. It is incredible that a critical safety component holding a 5,000 pound curb weight vehicle was allowed on the car. The potential situation of a complete lower control arm break while driving at highway speeds is beyond imagining. Not only would such a situation endanger occupants but all other vehicles in the vicinity. This vehicle has never been in an automobile accident. It has 120,000 miles. It has never been used off road or for commercial usage. My wife and I are the original owners and only drivers.

NHTSA complaint #11736676 — an unverified report by a vehicle owner.

SUSPENSION

On a side street approximately 1/4 mile before we were going to enter a highway the car suddenly resisted motion substantially and I had to immediately pull to the side. I tried reverse and the resistance was higher, I put it back in forward and it released. However, I immediately but slowly headed for my service station 2 miles away. A warning message appeared just as I brought the car to a stop at the station, but I did not notice what it said as I was being directed to move the car to a parking spot. Before I could fully back the car into the spot the rear wheel collapsed. The rear control arm failed and has been replaced. I have retained the failed control arm. Photos attached of the part as well as the rear wheel when it collapsed. If the initial resistance had occurred one minute later, I would have been on the highway and could have lost control of the vehicle. A serious accident would have been likely risking our safety and any others our car would have collided with. Note: This is the second suspension part failure on this car. The first was also reported to NHTSA.

NHTSA complaint #11736109 — an unverified report by a vehicle owner.

POWER TRAIN

I own three 2016 Tesla vehicles with the same known safety defect: two Model S P100D and one Model X P100D, all equipped with the Large Drive Unit (LDU). The component that fails is the rotor coolant seal in the rear drive unit motor. Coolant leaks internally into the motor and inverter, causing bearing wear, corrosion, isolation faults, and eventual complete drive unit failure. The affected drive units are still installed and available for inspection upon request. This defect puts my safety and the safety of others at risk because it can cause sudden loss of propulsion (especially at highway speeds), power reduction, or total drivetrain shutdown, potentially leading to a crash. Coolant in high-voltage areas also raises electrical fault/FIRE risks. The problem is widely reproduced and confirmed: Tesla service centers are familiar with it and replace failed units with updated “-U” revisions that include a coolant bypass. Independent EV shops confirm the exact root cause (rotor seal failure) via encoder inspections showing coolant intrusion and through disassembly. This is a documented pattern failure in all 2012–2020 LDU vehicles. No police or insurance inspections have occurred yet, as no crash or total failure has happened. Tesla is aware of the recurring issue through service records on similar vehicles. Early symptoms before full failure typically include rear motor whining/grinding (especially under load), reduced power warnings, “Rear Drive Unit Fault” messages, and visible coolant on the speed sensor. These can appear gradually. My vehicles have not yet experienced total failure, but the defect is known to be inevitable. I am proactively monitoring encoder sensors. Because this is a systemic design defect affecting thousands of vehicles with clear safety implications, I request NHTSA open an investigation and require Tesla to issue a recall for free repairs/replacements on all affected 2012–2020 LDU vehicles.

NHTSA complaint #11735429 — an unverified report by a vehicle owner.

POWER TRAIN

I own a 2016 Model S P100D equipped with the Large Drive Unit (LDU). The component that fails is the rotor coolant seal in the rear drive unit motor. Coolant leaks internally into the motor and inverter, causing bearing wear, corrosion, isolation faults, and eventual complete drive unit failure. The affected drive units are still installed and available for inspection upon request. This defect puts my safety and the safety of others at risk because it can cause sudden loss of propulsion (especially at highway speeds), power reduction, or total drivetrain shutdown, potentially leading to a crash. Coolant in high-voltage areas also raises electrical fault/fire risks. The problem is widely reproduced and confirmed: Tesla service centers are familiar with it and replace failed units with updated “-U” revisions that include a coolant bypass. Independent EV shops confirm the exact root cause (rotor seal failure) via encoder inspections showing coolant intrusion and through disassembly. This is a documented pattern failure in all 2012–2020 LDU vehicles. No police or insurance inspections have occurred yet, as no crash or total failure has happened. Tesla is aware of the recurring issue through service records on similar vehicles. Early symptoms before full failure typically include rear motor whining/grinding (especially under load), reduced power warnings, “Rear Drive Unit Fault” messages, and visible coolant on the speed sensor. These can appear gradually. My vehicles have not yet experienced total failure, but the defect is known to be inevitable. I am proactively monitoring encoder sensors. Because this is a systemic design defect affecting thousands of vehicles with clear safety implications, I request NHTSA open an investigation and require Tesla to issue a recall for free repairs/replacements on all affected 2012–2020 LDU vehicles.

NHTSA complaint #11735433 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I own three 2016 Tesla vehicles with the same known safety defect: two Model S P100D and one Model X P100D, all equipped with the Large Drive Unit (LDU). The component that fails is the rotor coolant seal in the rear drive unit motor. Coolant leaks internally into the motor and inverter, causing bearing wear, corrosion, isolation faults, and eventual complete drive unit failure. The affected drive units are still installed and available for inspection upon request. This defect puts my safety and the safety of others at risk because it can cause sudden loss of propulsion (especially at highway speeds), power reduction, or total drivetrain shutdown, potentially leading to a crash. Coolant in high-voltage areas also raises electrical fault/FIRE risks. The problem is widely reproduced and confirmed: Tesla service centers are familiar with it and replace failed units with updated “-U” revisions that include a coolant bypass. Independent EV shops confirm the exact root cause (rotor seal failure) via encoder inspections showing coolant intrusion and through disassembly. This is a documented pattern failure in all 2012–2020 LDU vehicles. No police or insurance inspections have occurred yet, as no crash or total failure has happened. Tesla is aware of the recurring issue through service records on similar vehicles. Early symptoms before full failure typically include rear motor whining/grinding (especially under load), reduced power warnings, “Rear Drive Unit Fault” messages, and visible coolant on the speed sensor. These can appear gradually. My vehicles have not yet experienced total failure, but the defect is known to be inevitable. I am proactively monitoring encoder sensors. Because this is a systemic design defect affecting thousands of vehicles with clear safety implications, I request NHTSA open an investigation and require Tesla to issue a recall for free repairs/replacements on all affected 2012–2020 LDU vehicles.

NHTSA complaint #11735429 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I own a 2016 Model S P100D equipped with the Large Drive Unit (LDU). The component that fails is the rotor coolant seal in the rear drive unit motor. Coolant leaks internally into the motor and inverter, causing bearing wear, corrosion, isolation faults, and eventual complete drive unit failure. The affected drive units are still installed and available for inspection upon request. This defect puts my safety and the safety of others at risk because it can cause sudden loss of propulsion (especially at highway speeds), power reduction, or total drivetrain shutdown, potentially leading to a crash. Coolant in high-voltage areas also raises electrical fault/fire risks. The problem is widely reproduced and confirmed: Tesla service centers are familiar with it and replace failed units with updated “-U” revisions that include a coolant bypass. Independent EV shops confirm the exact root cause (rotor seal failure) via encoder inspections showing coolant intrusion and through disassembly. This is a documented pattern failure in all 2012–2020 LDU vehicles. No police or insurance inspections have occurred yet, as no crash or total failure has happened. Tesla is aware of the recurring issue through service records on similar vehicles. Early symptoms before full failure typically include rear motor whining/grinding (especially under load), reduced power warnings, “Rear Drive Unit Fault” messages, and visible coolant on the speed sensor. These can appear gradually. My vehicles have not yet experienced total failure, but the defect is known to be inevitable. I am proactively monitoring encoder sensors. Because this is a systemic design defect affecting thousands of vehicles with clear safety implications, I request NHTSA open an investigation and require Tesla to issue a recall for free repairs/replacements on all affected 2012–2020 LDU vehicles.

NHTSA complaint #11735433 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

I own three 2016 Tesla vehicles with the same known safety defect: two Model S P100D and one Model X P100D, all equipped with the Large Drive Unit (LDU). The component that fails is the rotor coolant seal in the rear drive unit motor. Coolant leaks internally into the motor and inverter, causing bearing wear, corrosion, isolation faults, and eventual complete drive unit failure. The affected drive units are still installed and available for inspection upon request. This defect puts my safety and the safety of others at risk because it can cause sudden loss of propulsion (especially at highway speeds), power reduction, or total drivetrain shutdown, potentially leading to a crash. Coolant in high-voltage areas also raises electrical fault/FIRE risks. The problem is widely reproduced and confirmed: Tesla service centers are familiar with it and replace failed units with updated “-U” revisions that include a coolant bypass. Independent EV shops confirm the exact root cause (rotor seal failure) via encoder inspections showing coolant intrusion and through disassembly. This is a documented pattern failure in all 2012–2020 LDU vehicles. No police or insurance inspections have occurred yet, as no crash or total failure has happened. Tesla is aware of the recurring issue through service records on similar vehicles. Early symptoms before full failure typically include rear motor whining/grinding (especially under load), reduced power warnings, “Rear Drive Unit Fault” messages, and visible coolant on the speed sensor. These can appear gradually. My vehicles have not yet experienced total failure, but the defect is known to be inevitable. I am proactively monitoring encoder sensors. Because this is a systemic design defect affecting thousands of vehicles with clear safety implications, I request NHTSA open an investigation and require Tesla to issue a recall for free repairs/replacements on all affected 2012–2020 LDU vehicles.

NHTSA complaint #11735429 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

I own a 2016 Model S P100D equipped with the Large Drive Unit (LDU). The component that fails is the rotor coolant seal in the rear drive unit motor. Coolant leaks internally into the motor and inverter, causing bearing wear, corrosion, isolation faults, and eventual complete drive unit failure. The affected drive units are still installed and available for inspection upon request. This defect puts my safety and the safety of others at risk because it can cause sudden loss of propulsion (especially at highway speeds), power reduction, or total drivetrain shutdown, potentially leading to a crash. Coolant in high-voltage areas also raises electrical fault/fire risks. The problem is widely reproduced and confirmed: Tesla service centers are familiar with it and replace failed units with updated “-U” revisions that include a coolant bypass. Independent EV shops confirm the exact root cause (rotor seal failure) via encoder inspections showing coolant intrusion and through disassembly. This is a documented pattern failure in all 2012–2020 LDU vehicles. No police or insurance inspections have occurred yet, as no crash or total failure has happened. Tesla is aware of the recurring issue through service records on similar vehicles. Early symptoms before full failure typically include rear motor whining/grinding (especially under load), reduced power warnings, “Rear Drive Unit Fault” messages, and visible coolant on the speed sensor. These can appear gradually. My vehicles have not yet experienced total failure, but the defect is known to be inevitable. I am proactively monitoring encoder sensors. Because this is a systemic design defect affecting thousands of vehicles with clear safety implications, I request NHTSA open an investigation and require Tesla to issue a recall for free repairs/replacements on all affected 2012–2020 LDU vehicles.

NHTSA complaint #11735433 — an unverified report by a vehicle owner.