Land Rover SOS Limited Functionality
If you are looking for a solution for the SOS limited functionality in your Land Rover, this is the right place. There are several reasons behind this problem.
So, what causes Land Rover SOS Limited Functionality?
Land Rover SOS shows limited functionality if there is faulty wiring and a weak cellular signal. Apart from that, if the telematics module goes bad then there will be a disruption in the SOS signal. Even a weak telematics battery means that the SOS signal from Land Rover will have limited functionality.
To get a detailed idea to solve this problem, let’s get started.
Why Does Land Rover SOS Have Limited Functionality?
Just like wanting a recovery point, you don’t want to lose access to the SOS signal. The Land Rover SOS functionality can face problems for a lot of reasons.
The table below shows some of the common reasons why you might face difficulty in having proper SOS functions. Check them out.
| Reasons | Solutions |
| Weak Cellular Signal | Try Better Cellular Signal |
| Bad Telematics Module | Replace Telematics Module |
| Weak Telematics Battery | Replace Battery |
So, the problem with the telematics module is the main reason why the SOS will have limited functionality. However, some users have reported that once the car is restarted, the “SOS limited functionality” error message disappears.
Although it’s a probable firsthand solution, it’s not a guarantee. So, let’s go through the most probable reasons in detail.
Reason 1: Weak Cellular Signal
Your Land Rover’s SOS system relies on a strong cellular signal to communicate with the Land Rover server. If the signal strength is weak or completely absent, it can hinder the proper functioning of the SOS system.
Ensuring a reliable cellular signal is crucial for the system to work effectively in emergency situations.
Solution: Try Somewhere with A Better Cellular Signal
Just try somewhere with a better cellular signal. You may use your mobile phone to check for the signal. If you find any network, then send the SOS again.
Reason 2: Bad Telematics Module
The telematics module plays a critical role in the operation of the SOS system in your Land Rover. This hub relies on an intricate network of wiring and electrical components for receiving and transmitting data.
If any of these components become damaged, it can disrupt the electrical flow, causing the telematics module to malfunction. This, in turn, can impact the overall SOS functionality of your Land Rover. But don’t worry, this will not hamper the engine performance of Land Rover.
Solution: Replace Telematics Module
You can get the Land Rover SOS back to functioning by replacing the telematics module. Following are the steps for replacing the telematics module.
Step 1: Locate the module behind the rear seat, typically bolted to the side of the vehicle.
Step 2: Disconnect the negative battery cable to prevent electrical damage.
Step 3: Remove the trim panel covering the module, releasing any metal clips.
Step 4: Disconnect the wiring harness and other connections, noting their positions.
Step 5: Remove the old module and install the new one in the same location.
Step 6: Reconnect the wiring harness and other connections.
Step 7: Secure the trim panel with metal clips.
Step 8: Reconnect the negative battery cable.
Step 9: Test the SOS system to ensure proper functionality.
If the test shows proper SOS functionality and the error message goes away, then you’re good to go. But if the message still shows, it’s better to use Land Rover diagnostic software to resolve the issue.
Get a JLR SDD software for additional diagnosis. It is diagnostic software that needs to be connected to the vehicle through an authorized JLR VCI. Thus, the diagnosis will show you what you’ll have to do. But it’s better to take professional assistance for this.
Reason 3: Weak Telematics Battery
The telematics module, within the vehicle, plays a crucial role in processing data and facilitating communication with other systems. To operate effectively, it depends on a reliable power source, such as the TCU battery.
However, if the TCU battery is depleted or experiencing issues, it leads to the malfunctioning of the telematics module. This further results in error messages, ultimately impacting the functionality of the SOS system.
Solution: Replace The TCU Battery
Get the TCU Battery replaced to make the Land Rover SOS function properly. The steps are quite simple. Just follow the steps to remove the TCU as discussed above.
After removing the TCU, you will find the TCU battery. It is a lithium-ion battery and you need to replace it. After replacing the battery reassemble the TCU unit as discussed above and test the SOS system for proper functionality.
For a visual demonstration check this
Frequently Asked Questions (FAQs):
Does “SOS Limited Functionality” Alter the Car’s Safety?
No, the SOS system’s limited functionality does not alter the car’s safety laws. However, since 2018 the EU has mandated that every vehicle be equipped with an eCall system. This will automatically contact the emergency service in case of an accident. If the SOS system does not work, then the EU’s safety laws might be breached.
Is There Land Rover Telematics Module Extended Warranty?
Yes, Land Rover offers extended warranty coverage for the telematics module and related components. This also includes unexpected mechanical and electrical component failure. Additionally, Land Rover offers Limited Warranty on every new Land Rover vehicle for 4 years or 50,000 miles.
How to Turn Off SOS in Land Rover?
To turn off SOS In Land Rover, press and hold the overhead console’s SOS button for five seconds. This is to activate the manual SOS Emergency Call. To reset SOS, disconnect the negative terminal of the battery under the hood for a few minutes.
Conclusion
In conclusion, understanding the causes and solutions for Land Rover SOS Limited Functionality is crucial.
Identifying the culprits can help owners resolve this issue promptly, whether it’s telematics module failure or other underlying factors. But if you are not comfortable fixing the problem yourself then always seek professional help.
