general problems of the 2018 Tesla Model 3 - part 2

146 problems related to electrical system have been reported for the 2018 Tesla Model 3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Tesla Model 3 based on all problems reported for the 2018 Model 3.

36 Electrical System problem

Failure Date: 01/08/2024

The steering wheel horn stopped working about a month or so ago. I can use the Tesla app to make the horn sound but not by pressing the steering wheel. Fortunately, no safety of others or myself have been experienced. No one else has inspected it yet, though I am due to have my state inspection tomorrow and I don't think that it will pass. There were no warning lamps for messages prior to the failure. I think I first noticed that it wasn't working about a month or so ago. I reported the bug on the car texting service but have not heard from Tesla nor received a software update to fix the problem.

37 Electrical System problem

Failure Date: 01/05/2024

We intermittantly received alerts on the screen showing "front safety restraint system fault (service is required). " after many hours of research, we found that other owners also have the same issue and they found that a wire from a electrical connector that connected to the seatbelt pretentension was broken from the seat being moved up and down.

38 Electrical System problem

Failure Date: 01/01/2024

My car went out of warranty for seat related issues in December of this past year 2023. I don't even have 26k miles on my car therefore not a heavy driver. This week I experienced an error rcm_a021, front left safety restraint system fault, which I've researched has affected many others and appears to clearly be a safety flaw. The service team mentioned this isn't covered. My airbag light doesn't go off and is constantly on, my seats no longer save the seat setting (which occurred a couple of months ago but I didn't think about it). This is a safety hazard should I get into an accident. There were no previous warning issues prior to this warning error which occurred this week. According to Tesla, if the airbag light remains lit, schedule a service appointment immediately and do not drive. The service team mentioned the seat harness is faulty remotely and according to what they can see. I have not had them look visually yet though. They do not cover the repair for this as it's out of warranty. There's even a bulletin posted on this issue/repair by NHTSA therefore is known problem. Https://static. Nhtsa. Gov/odi/tsbs/2019/mc-10169819-9999. Pdf I'm unable to upload any files.

39 Electrical System problem

Failure Date: 12/30/2023

Touchscreen went entirely blank. A few days prior to this, radio cut on and out. Rebooting procedures did not work. Tesla repaired, stating it was the cars computer. I asked for the old computer board but was told it was proprietary. The symptoms are very similar to those of the older memory issues.

40 Electrical System problem

Failure Date: 12/27/2023

Got into car after update, screen blacked out, could not to hard reboots. App could no longer see car. Tech support couldn't remote into vehicle or get in touch with it. Had to have it towed to service center. It's been sitting there for 6 days with no diagnosis just an estimate for $530 to troubleshoot the car. This update caused my car to completely be unresponsive and undrivable. I also had a carseat in the car.

41 Electrical System problem

Failure Date: 12/24/2023

While in fsd the car swerved to the left and hit a tree. Youtube of the crash. . Https://youtu. Be/as9evo5vztu.

42 Electrical System problem

Failure Date: 12/13/2023

Low coolant alert while in the hidden service mode only. Happens to all my 3 cars. Went to service to fill up the coolant and the warning didn’t go off. They said is a sensor gone bad and it’s $1000 to repair. What are the chances that all my 3 cars have that issue and all not actually having low coolant.

43 Electrical System problem

Failure Date: 11/27/2023

The only cabin heating and defrosting mechanism in early Model 3s, a ptc heater, is prone to failure leaving the vehicle without the ability to maintain clear vision through the front and side windows. This occurred on my Model 3 in November of 2023 and Tesla was unable to source parts for several weeks, with a cost of $900. This failure is extremely common among Model 3 in cold weather environments and is well documented online.

44 Electrical System problem

Failure Date: 11/23/2023

The power conversion system (pcs) failed during driving, disabling the rear motor and regenerative braking. This severely affected the driving characteristics of the vehicle, including top speed, braking profile and handling.

45 Electrical System problem

Failure Date: 11/20/2023

Vehicle touch screen will shut off while driving and take 5 minutes to reboot. I have taken it to Tesla multiple times since November and they said it’s a firmware issue and nothing is being done to resolve.

46 Electrical System problem

Failure Date: 11/15/2023

The contact owns a 2018 Tesla Model 3. The contact was made aware of NHTSA campaign number: 21v00d000 (electrical system, visibility, back over prevention). The contact attempted to schedule an appointment for a recall repair on the Tesla app however, the app displayed an error “unnecessary to schedule an appointment; you will be notified when parts are available" since June of 2023. The local dealer was contacted but confirmed that the recall repair needed to be scheduled via the Tesla app. The contact attempted to reach out to the manufacturer but was unable to reach a representative. The contact had not experienced a failure. Parts distribution disconnect.

47 Electrical System problem

Failure Date: 10/19/2023

I received a warning message that displayed, “front left safety restraint system fault. ” this is an engineering problem as the cables associated easily detach under the driver’s seat. Tesla has been long aware of this problem. They came out to my home and replaced the wire connection by installing sturdier connectors. I was subsequently was charged $329. 40.

48 Electrical System problem

Failure Date: 10/19/2023

Tesla Model 3 power conversion system failure which will now limit the car charging to 16 amps (half the normal charge rate). This is a common failure which should be recalled.

49 Electrical System problem

Failure Date: 10/16/2023

"front safety restraint system fault" message comes up sporadically and then regularly. Tesla has address this issue at least four times but it has not been resolved. I was told they ordered a new seat but now they are backtracking on this.

50 Electrical System problem

Failure Date: 09/15/2023

I have had a safety restraint fault on the vehicle once before and Tesla came and replaced something. It never came back. Until I'm a couple thousand miles over the warranty and I "randomly" get another safety restraint fault. I filed the service report for them to tell me it's the seatbelt. I replaced the seatbelt and the error continues. This is a safety issue that needs to be addressed as thousands of people are having the same "fault" codes. This is a known problem Teslas have and they are doing nothing to address it. I'm in shock this is allowed to happen.

51 Electrical System problem

Failure Date: 09/01/2023

My car no longer has ability to use the horn after a software update. I've had two dangerous incidents in the past month where a working horn would have allowed me to make another driver aware of my vehicle.

52 Electrical System problem

Failure Date: 08/29/2023

The passembly power conversion system- 48amp 1phase(1135558-04-a part is part of the powertrain attached to the battery pack. . Without it, the car is unable to charge. This failed at approximately 32,000 miles on 8/29/23 on my 2018 Tesla Model 3. The repair was not covered under the powertrain warrenty despite being a critical component.

53 Electrical System problem

Failure Date: 08/29/2023

The power conversion system is failing in the car and Tesla is not covering it under the battery limited warranty. The car only has about 30,000 miles on it.

54 Electrical System problem

Failure Date: 08/21/2023

Re NHTSA recall 21v00d the rear view back up camera of my Tesla 2018 Model 3 went black on August 21 starting at approx 3pm and remained black for the rest of the day through August 22. I'm planning to check today, August 24 to see if the problem still persists. Lack of the backup camera makes it very difficult to park and to see people in the car's blind spots. I've informed the dealer of the problem but I've decided to have an independent third party repair service take a look to see if the problem could possibly pertain to recall.

55 Electrical System problem

Failure Date: 08/19/2023

Safety restraint system fault rcm_a094.

56 Electrical System problem

Failure Date: 08/15/2023

I was exiting the highway onto a blvd and I slowed down. The car all of a sudden accelerated by itself, went over the exit curb and hit the central median of the blvd. Fortunately, no vehicles on the blvd wer crossing when this happened. I was fortunately not physically hurt in the incident but it could have been afr worse if I had a vehicle in my front or on the lvd when the incident happened.

57 Electrical System problem

Failure Date: 07/25/2023

The center display that houses all of the cars instrumentation including gauges randomly goes out while driving. It will go out for 10 to 15 minutes until it recovers. This leaves me with no gauges at all including loss of backup camera, turn signals, speed and various other functions. I purchased the car two weeks ago and this has happened 5 times already.

58 Electrical System problem

Failure Date: 07/11/2023

Received an error "front left safety restraint system fault. Service is required. " error on my vehicle yesterday (7/11/2023) which disappears when lifting seat to highest position. As soon as seat is lowered more than 1/2" the error reappears and airbag light is illuminating notifying that the airbag is not enabled. This error is clearly an issue with the safety restraint system on the vehicle but Tesla will not honor fixing this under their supplemental restraint system limited warranty. The vehicle is within coverage period (<5 years and <60,000 miles). I am being told this srs limited warranty covers air bags, seat belt, seat belt buckles, sensors, and modules only. I have not taken the vehicle in for service as the quote I received is too expensive ($601). Please see photos for my conversation with Tesla service as well.

59 Electrical System problem

Failure Date: 05/19/2023

My car and every other 2018 or older Tesla doesn't have an audible sound safety system when reversing or driving in low speeds. I work with a blind girl who can't hear me coming. This is dangerous.

60 Electrical System problem

Failure Date: 05/09/2023

Charging power conversion system component fail to take the full capacity the charging station able to give causing very slow charging. Warranty was not covered and costing over $1500 to fix & replace. When asked that this should be battery warranty, I was turned down and was told that it's not 'part of the battery'. This is safety concern and fire hazard.

61 Electrical System problem

Failure Date: 05/01/2023

Tesla vehicle safety concern. Safety may 1, 2023 on rt 95 south from washington DC to richmond va (near richmond va) at about 10:45 pm. (please note the clock time on the vehicle is incorrect—it is about 5 minutes slower and sets to a time I hr. Earlier than the current eastern time). Vehicle: 2018 Model 3 VIN [xxx] the computer system failed in the middle of highway. The computer screen where all system functionality is monitored went bank except for a Tesla icon. Losing control of vehicle including turn signals in the middle of the highway was dangerous and a safety concern. For fear of being stranded on the road I carefully drove the vehicle to home in yorktown va. It was scary! much of the settings on computer and navigation info was lost. This is a vehicle defect I need to report. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

62 Electrical System problem

Failure Date: 05/01/2023

The front passenger seat driver occupancy system started sporadically malfunctioning and showing the "air bags disabled" warning even while the seat was occupied. This would put the passenger at risk in the event of a crash. The manufacturer's technician arrived to inspect the vehicle and upon hearing the description of the problem said it was likely that a cable in the seat's wire harness probably wore out from friction and that "it was a common issue in these vehicles". Upon examining the wire harness the technician confirmed that this was the issue, and the harness had to be replaced.

63 Electrical System problem

Failure Date: 04/21/2023

On April 21st 2023, by pure chance I happened to notice that, after plugging in my Model 3 to recharge at a local charger, the charging rate was lower than normal: instead of its full 32a charge, the rate was only 16a. I kept getting a notification of an issue with charging, error: pcs_a019 "charging slowed - poor grid power quality possible, unplug and retry / try different charging location" I've attempted several charging stations and all the same outcome. I've done research on this issue online and others are having the same issue. Tesla did cover a few from what I read as "battery warranty" that I've reach but most are denied as it wouldn't be part of the "battery warranty". I've reached out to Tesla and was informed my warranty was expired almost 28 days on March 23rd 2023 as it was April 21st when I made the service appointment. The cost to repair was $1,987. 58 and not covered by the battery warranty. I've asked if Tesla would waive the fee as my car was just out of warranty and has a mileage of 30,193. It was declined as she "informed" management at the burbank, CA repair location. I'm very sadden by this issue as Tesla advertises the electric car is "low maintenance" compared to the average gas vehicle, this is false advertisement. Other manufacture do cover this part under their battery warranty. The vehicle isn't operable if not repair to charge at a normal faster speed. I'm now considering to sell my vehicle once repaired and give people my honest opinion about my experience with Tesla. I hope there's a recall for this issue so other don't have to go through this issue.

64 Electrical System problem

Failure Date: 04/11/2023

Power conversion system failure. Only charges 32/48 amps at destination chargers. Unsure how long this has been a problem because I just upgraded my power panel to be able to charge at 48 amps. Being told $1800 to get car to charge at expected amp limit. 90k miles on car.

65 Electrical System problem

Failure Date: 04/07/2023

The Tesla was parked and locked unoccupied with all security features enabled. When I returned to the car the front driver's side was completely crumpled with the bodywork torn , like it was reveresed in to. I was gone about 30 minutes. The car gave no notification on the app, the car alarm didn't activate and the sentry mode did not record the incident. All the things they say the car will do. I called Tesla and was told it works 99% of the time ,(but clearly when you need safety and security it doesn't) they stated that if the car gets hit a certain way it can cause the system to shut down /reboot ,so that none of these systems work. . . Seems wrong that this can be allowed to be the case that not only all the systems fail, that when they do fail there's no backup or way for the car to know something is wrong. That if there is a unexpected forced reboot it doesn't tell you or acknowledge something is wrong in any way . They seem to think that this is ok . I have reported to them and they really didn't seem to care , just said the statement above about it working 99% of the time. . However all the things they say the car can do ,and several reasons you think you are buying the car for with it's increased safety and security, apparently don't work at all. Now I have a 4 figure out of pocket to get the car repaired because I have no way to find the person who hit my car because the none of the cars security or safety warnings worked.

66 Electrical System problem

Failure Date: 04/02/2023

My Tesla Model 3 without any warning stopped working suddenly. I could not put the car in drive and there were error messages about climate control and electrical system. I had to get the car towed to the service center as it was blocking my other car in the driveway. The service center in sunnyvale, CA diagnosed the problem to be a faulty ptc heater and has charged me over $1100 to replace it. I beileve it is quite absurd to have a fault in the hvac system render the whole vehicle completely immobile and useless. This seems like a serious design flaw and it could lead to serious health or safety concerns.

67 Electrical System problem

Failure Date: 03/31/2023

Recommended software update is not available. Tesla app has stopped working for the past 2 months.

68 Electrical System problem

Failure Date: 03/28/2023

The power conversion system (pcs), 1 of the 3 module fails, therefore, it limits the ac charge current to 32a out of the max of 48a the car was never pullged into a 48a ac charging connector, therefore, the pcs module likely to be defective.

69 Electrical System problem

Failure Date: 03/18/2023

I experienced premature failure of all 3 modules is the vehicles pcs (power conversion system) part of the hv battery system. Although a TSB was issued to replace the same part in other cars with "affected" vins Tesla has ignored this faulty part and has declined to replace it under the vehicles hv battery warranty even though the unit is replaced as a single unit when the hv battery requires replacement. This is a well known issue that is being intentionally ignored by Tesla. It could leave a driver stranded in an unsafe condition or situation. I would like to see the part recalled. Https://static. Nhtsa. Gov/odi/tsbs/2018/mc-10148850-9999. Pdf.

70 Electrical System problem

Failure Date: 03/13/2023

The contact owns a 2018 Tesla Model 3. The contact stated that while driving at an undisclosed speed, the display screen intermittently went blank and failed to display the speedometer. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 37,740.



Model 3 Service Bulletins
Model 3 Defect Investigations