Tesla Model 3 has a cabin overheat protection feature that reduces the cabin temperature when it reaches 40°C. I use this climate control feature during long-distance trips to make driving comfortable.
Tesla Model 3 cabin overheat protection not working can be due to maximum use, low-temperature range, battery drainage, computer and software defects, activation in driving mode, defects of the HVAC system, and recent software updates.
My friend uses the cabin overheat protection mode as a default in his Tesla Model 3 because he is a traveler. You can activate or deactivate it through the display screen and internal settings of your Tesla Model 3.
However, it undergoes several electrical and mechanical defects and does not work for the following reasons.
| Causes | Solutions |
| Maximum use | Turn off the battery and use it below 12 hours |
| Low-temperature range | Do not modify the temperature range |
| Drainage of battery | Recharge the car battery |
| Computer and software defect | Upgrade the software |
| Activation in driving mode | Activate in parking mode |
| Defects of HVAC system | Clean the HVAC fan and air filter |
| Recent software update | Wait for few days before adding new updates |
Maximum use
The Tesla Model 3 cabin overheat protection mode works for 12 hours because of the standard operation. Then, it automatically turns off, and the cabin temperature increases, which makes traveling and driving uncomfortable.
The internal circuit of this feature turns off and does not activate automatically. The system requires the locking and unlocking of the car for the activation of cabin temperature protection mode.
You cannot leave the system working for more than 12 hours because it stops working. It does not reduce the cabin temperature after twelve hours.
As a result, the cabin temperature rises above 105°F (40°C), which makes the travelers uncomfortable. You can turn off the car battery and reduce the performance span of this cabin overheat protection mode from 12 hours.
Avoiding its activation for 12 hours can maintain its performance. It is easy to lock and unlock the vehicle and activate it through the car display settings.
Then, its cycle starts from the first hour and can reduce the temperature of the Tesla Model 3 cabin.
Low-temperature range
The cabin temperature control of the Tesla Model 3 activates and works when the temperature increases above 105°F (40°C).
However, it is the standard range of temperature that triggers the climate control for the optimized heat regulation in the interior of this car.
The low temperature of 85°F (29°C) is a high temperature for free individuals in Tesla Model 3.
However, cabin overheat protection does not activate at 85°F because of the specific identification pattern and performance.
The system is only activated when the cabin temperature reaches 105°F and is specific for these cars and their interior. A few people change the temperature settings of this feature.
As a result, it does not work because it has a specific activation range of 40°C (105°F). You can fix the problem by maintaining its settings at a particular temperature range.
You cannot modify heat level changes, which can optimize its performance. Modifying the mode settings is not advisable because it can reduce its work efficiency.
Drainage of battery
The Tesla Model 3 cabin overheat protection does not work when the battery drains below 20%. It requires continuous power flow for optimized performance and stable efficiency for several hours.
In such circumstances, the mode does not work when the battery power reduces and reaches a range of 20%.
The temperature of the car interior increases to 105°F, but the mode does not activate because the battery has low internal power.
Climate control does not work because the power supply becomes intermittent. Low battery power is not beneficial for activating the climate control mode.
Fixing this problem is less complicated and consumes a few minutes to one hour. You can recharge the battery of your Tesla Model 3. Therefore, you can use a charging wire and a current supplying port for its charging.
Connecting the wide ends with the battery and power source initiates the charging procedure. As a result, the battery recharges, and its power level upgrades from 20%.
Then, it can supply continuous power for climate control and its stable efficiency. It activates when the interior temperature goes to 105°F and reduces the heat level.
Computer and software defects
The computer of the Tesla Model 3 controls its amenities and climate control cabin overheat protection features. A few people turn on the other amenities with the climate control mode, which mixes the signals.
Therefore, the cabin overheats protection feature does not activate because the powertrain control module cannot differentiate the signals.
You should activate the sentry mode on your Tesla car while turning on the climate control amenity.
In these conditions, the overheating protection mode turns off because both features cannot work with the PCM simultaneously.
You can keep other safety features off for the default activation of this cabin overheat protection mode. Sometimes, the software of the car computer requires an upgrade.
It becomes outdated and cannot identify the temperature control feature of the vehicle. You can modify and upgrade the software through various techniques and make the software compatible with this feature.
You should update the software of the new Tesla Model 3 from transport mode to deliver for the activation of this climate control feature.
Activation in driving mode
Sometimes, the cabin overheat protection does not work on the Tesla Model 3 because you activate it in driving mode. It is a default feature of the car settings with a few specifications.
Furthermore, it works when the car is in parking condition because of the characteristics and performance criteria.
A few people reduce the car acceleration for activation, but the feature does not work.
It only identifies the parking conditions of the vehicles and activates within a few seconds. However, it is not an electrical or technical default, and you can fix it by parking the car for a few minutes.
It can automatically activate the climate control feature when the interior temperature is 105°F or higher.
You should avoid its activation during driving mode because it can reduce the performance of the heat control feature.
Defects of HVAC system
Tesla Model 3 has an HVAC (heat ventilation and air conditioning system) that comprises a fan that regulates the cold air inside the car’s interior. It is a ductless system with high performance and optimized efficiency.
The HVAC has filters that can clean the air and optimize its flow. A dirty filter can damage the fan of your car’s HVAC system.
It does not work at the optimized functionality level, and the overheat protection control does not activate. The debris can clog the fan, which leads to its defects, and the climate control feature does not work.
In such circumstances, you should remove the dirt and debris from the clogged fan. Cleaning the air filter and replacing it is better for the optimized performance of the overheating control feature of the car cabin.
You should repair the electrical defects of the power circuit inside your car.
In such circumstances, replacing the non-insulated and malfunctioning wires is essential, which improves the power flow in the HVAC system of the Tesla Model 3.
Recent software update
A few Tesla Model 3 owners upgrade the software of their car computers in 2 to 3 months. In such circumstances, the recent software upgrades do not recognize the old temperature settings of the car computer.
Therefore, the cabin overheat protection feature does not work in your Model 3 when the interior temperature reaches 105°F (40°C).
The recent software has reduced compatibility with the cabin climate control feature. The overheat control mode does not accept the recent software upgrade.
In such circumstances, it does not automatically work or activate, which leads to cabin overheating. However, you cannot install new updates in your Tesla Model 3 by the interior cabin overheat control feature.
It is better to avoid the recent new updates because they can change the old and fixed software settings.
Related Articles: