1. Introduction
This is generic alert and there could be many reasons for this alert. In this free guide, you will get information about how to diagnose the exact cause of this alert, what could be the reasons for this alert, how to fix it, How much it cost to fix, How to get online support, Find and compare best affordable workshop in your region and book an online appointment to fix alert, Information about spare part number and name and buy new and used spare parts with best price etc.
2. How to Diagnose
This alert could come because of one or more system/feature is disabled/faulty. It need to check additional alerts to find out the cause of this alert.
2.1 How to check additional alert
It could be possible to find out exact cause via Remote Diagnosis, Service Mode.
2.2 Remote Diagnosis
Please read more details about Remote Diagnosis in another guide (How to do, Cost etc.) Link If you need support. Please Contact Us Phone/Whats App +49(0)15226242038
2.3 Service Mode
It could be possible to do self diagnose via Service Mode. It could be diagnosed with the help of active service alerts and Thermal Test.
Service Alerts
How to read service alerts in Service Mode
- On the touchscreen, click Controls > Software
- Touch and hold the large word "MODEL" for 4 seconds and then release.
- Enter "service" as access code.
- After clicking on Service Alerts. You can read service alerts. If there is anything wrong with car. It will show in active alerts.
Thermal Test
How to perform Thermal Test?
Service Mode > Thermal > Test > HVAC Performance
Please read more details in another guide (How to do diagnosis) Link
In case, If you need support for diagnosis. Please Connect Us.
If you need support. Please send us Service Alert Screenshot via Contact or Whats App +49 (0) 15226242038. We will be happy to help you to explain alert and how could be fixed, cost, support for fixing if possible online support or to organize an appointment with independent affordable workshop.
Depend on alert/fault code, car might need to be repaired/serviced.
3. How to Fix it
Some of alert could come because of software bugs. Some of alert could resolve after restarting the system, software update/reinstall. To fix some of alerts, car might need hardware repair.
3.1 Restart System
Some of alert could resolve after restarting the touchscreen or power of the car.
Restart Touchscreen
Firstly, you could try with soft reset (restart touchscreen)
How to restart soft reset (restart touchscreen)
- Please shift car into park.
- Hold down both scroll buttons on the steering wheel until the touchscreen turns black.
- Please wait approximately 30 seconds for the touchscreen to restart.
Please read more details in another guide (how to do). Link
Powering Off the Car
If soft reset (restart touchscreen) have not resolved the alert/issue. You could try hard reset (Powering Off the car).
- Please shift car into park
- On the touchscreen please touch Controls > Safety > Power Off
- Please wait for at least for two minutes without interacting with the car. Please do not open the doors, touch the brake pedal, touch the touchscreen etc.
- After 2 minutes, please press the brake pedal or open the door to wake the car (Source Tesla)
3.2 Software issue
Some of alert could be related to software issue.
Software Bug and Glitches
One of reason could be problem with software bug and glitches. Did you get this alert after updating recent software version? If yes, it could be related with software bug and could resolve with future software update. Please send us Service Alert screenshot. So we will inform you if it could be related to software bug. Link
Firmware not updated
One of main reasons could be that firmware is not updated. Have you checked recent update and updated to recent version? If not, we recommend you to do that. Please make sure that the car latest software version. Please read more details in another guide. Link
Hardware Issue
There could be some hardware issue/faulty. Some of common hardware issues could be followings:
Recent Repair/Service
Did this alert pop up after recent repair/service? If yes, please let us know which repair/service was done recently. Some alerts could pop up if repair/service is not done in proper way. If system/alert has not be reset. Did you use aftermarket/used part?
3.3 Thermal System Test
You can put car in Service Mode and run Thermal System Test. Test will give some data/info if there is anything wrong with the car.
Please send us fault Screenshot via Contact or Whats App +49 (0) 15226242038. We will be happy to help you to explain fault and how could be fixed, cost, support for fixing if possible online support or to organize an appointment with independent affordable workshop.
3.4 Unplugged Cables
In case, if you have recently repaired dash or Glove-box. Please make sure that Airflow Sensor wire are plugged in back.
3.5 Derbies Radiator
In case, if your car is couple of years old and have already drove couple of thousands kilometers. One of reason could be that there could be derbies, leaf block and might need to remove/clean it.
3.6 Refrigerant Pressure/Temperature Sensor
One of reason could be issue with sensor.
Model 3 and Y: Certain model 3 and Y (2020-2021) equipped with Refrigerant Pressure/Temperature sensor in the heat pump that could fault over time. If you are having Model 3 or Y. Please check if your vehicle has affected with Service Recall Service Bulletin
Guide to remove and replace Pressure and Temperature Sensor link
Possible alert: You could get THC_d0011_presSnsDis alert code in Service Mode.
- Sensor could cost around 45 dollars.
- Sensor could from sensata, bridgeport company.
3.7 Leakage
Check if there is any leakage. There could be some hose leakage. Please read more details in another guide. Link
3.8 Coolant Level
It might need to check coolant level, Freon pressure.
3.9 Receiver Dryer and Desiccant
3.10 Compressor
One of reason could be issue with AC Compressor. Please read more details in another guide (How to diagnose, cost, how to remove and replace etc). Link
3.11 PTC Heater
Please read more details in another guide (How to fix, cost etc.) Link
Possible alert code
- THC_d0015_cabinPTCHeater
- THC_w0112_PTCTempRange
- THC_w0220_PTC_PtcFault
- VCRIGHT_a262_PTCFaulted
3.12 Temperature and Humidity Sensor
One of most common reasons could be issue with temperature and humidity sensor. Sensor could be faulty/damaged, disconnected, malfunctioning etc.
Have you recently replaced windshield glass? If yes, please make sure that sensor is put it back in correct way.
Part Details
Temperature and humidity sensors could cost around 70 euro.
How to Remove & Replace Tesla Temperature and Humidity Sensor
Guide to remove & replace. Link
3.13 Windshield Replacement
In case, if you done recently any repair work on windshield glass. There is chip that controls heating, which is located behind the rear view mirror.
You might need to reinstall software after windshield replacement.
3.14 Harness
One of reason could be issue with headliner harness.
3.15 Air Distribution System
There could be some blockage is air distribution system.
Possible alert code: VCFRONT_a156 / VCFRONT_a156_louverBlockage
Some of the other Hardware issue
Please send us your Service Alerts screenshot, video, Model, Year. Please describe issue as much as you can etc. We will be happy to help you. We can not share on our platform (our trade secret).
Please feel free to Contact or Whats App +49 (0) 15226242038. We will be happy to help to fix alert.
4. Cost
Cost could vary depend on issue, type of workshop, location. If you are looking for online support or affordable independent workshop. Please feel to contact us Contact Us or Call/Whats App +49 (0) 15226242038 or have a look in Price List
5. Online Support
In case, if you have any question or need any support/help. Please feel to contact us Contact Us or Whats App +49 (0) 15226242038
Find, compare and Book workshop to Fix it
If are you looking for best workshop who is expert to fix such issue with good price. Please contact us we will be happy to organize an appointment with workshop or find, compare and book best workshop in Workshop Locator
Book an Appointment
If you would like to book an appointment.
Book an appointment to fix alert in an affordable Workshop
Buy New/Used Spare Parts
If you would like to buy spare parts. Please have a look in our catalog or Contact Us Phone/Whats App +49(0)15226242038
Alert Code
Some of most common possible alert code
VCFRONT_a447
- VCFRONT_a447_cabinHVACUnavailable
- Cabin Climate Control System requires service
- Cabin heating/cooling limited or unavailable
- The vehicle controller detects a condition(s) affecting the Thermal Management System that prevents it from
THC_d0010
- THC_d0010_compressor
- This is general alert which suggest issue with compressor.
THC_d0011
- THC_d0011_presSnsDis
- Refrigerant Pressure/Temperature Sensor
THC_d0012
- THC_d0011_PTCTempRange
THC_d0015
- THC_d0015_cabinPTCHeater
- User Text: Cabin Climate Control System requires service
- PTC Heater
THC_d0016
- THC_d0016_chiller
THC_d0018
- THC_d0016_activeAero
THC_d0020
- THC_d0021_RCCMTempSnsAmb
- Ambient Temperature Sensor
THC_d0021
- THC_d0021_RCCMActuator
- User Text: Cabin Climate Control System requires service
THC_w0031
- THC_w0031_compNoFeedback
- could be blown up fuse in DC-DC converter
THC_w0065
- THC_w0065_bcRIsHumiditySNA
THC_w0130
- THC_w0130_radLeftShutrNoFeedbk
THC_w0134
- THC_w0134_radRightShutrNoFeedbk
THC_w0136
- THC_w0136_rfrgDisPress
- Low Refrigerant Pressure
- could be leak (leak could be tested with the help of pressure test) or low refrigerant if car is old. It lose over time.
THC_w0237
- THC_w0237_PTC_LeftCoreTempSensor
VCFRONT_a156
- VCFRONT_a156_louverBlockage
VCFRONT_a159
- VCFRONT_a159_coolantValueFault
"Climate keeper unavailable due to system fault" Guide to fix it
This guide might be interesting for you. This alert is also related to air conditioning. Please read more details. Link
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For Repair Workshop Owner
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There are some car owner who like to buy spare parts from OEM or Aftermarket and prefer to do Mobile Service, DIY or need support. If you would like to offer this services to car owner in your region. Please contact us.
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Frequently Asked Questions (FAQs)
Can I do at Local Workshop, Independent Tesla Workshop?
Yes, you can. However, please make sure that workshop knows how to work to Tesla Cars. If local workshop need any support. Please feel to contact us. We will be happy to provide online shop. You can also find workshop in our Workshop Locator.
Can I do it/repair yourself/myself (DIY)?
Some of repair could be done at DIY. In case, if you needed Tools, Know-How, Time etc. Please feel to contact us. We will be happy to provide you online support.
Note: Please do not work with high voltage components. If you do not need needed/proper Tools, Know-How etc. It could be dangerous.
Mobile repair service?
In some of cases, we could also provide mobile services. Please feel to contact us where are you located and what kind of repair are you looking for.
Car not under warranty, salvage, accident, flood, modified cars?
It is highly recommended to perform repair with independent workshop to save money.
Car under warranty?
In case if your car is under warranty. It is recommended to perform certain repair works (HV Components, ADAS etc) with OEM during warranty period. Wear and Tear Part Repair could be done with independent workshop to save money. Please read more details in another guide. Link
Alert still appearing after repair?
There could be many reasons. Some of reasons could be please make sure that repair was done in correct way, did you restart system after performing repair? did you Reinstall Firmware? Did you use used spare parts? Still appearing alert: Please free to Contact Us. We will be happy to provide you online support. Phone/Whats App +49(0)15226242038
