A red light next to the SOS button in your Peugeot 2008 means that the emergency call system is no longer working. This regularly occurs in models from 2020 onwards and can lead to MOT failure, with repair costs rising to 800 euros. It is a problem that requires immediate action.
The Peugeot 2008 has a number of technical issues, but the faulty SOS emergency call system stands out because of the safety risks and financial impact. What are the causes, and how should you deal with this?
What is the SOS emergency call system and why does it fail?
The SOS emergency call system, also known as eCall or Peugeot Connect SOS, automatically calls the emergency services in the event of a serious accident. You can also activate it manually using the SOS button near the interior mirror. A red light next to this button means the system is not functioning. Under normal conditions this light is green.
The fault is often reported on the dashboard. Typical messages include “Fault: emergency call function, have the vehicle repaired”. Sometimes this is accompanied by an audible warning. This problem appears suddenly, especially in models from 2020 onwards.
Why doesn’t the SOS button work in the Peugeot 2008?
There are several possible causes of the fault. The most common problems are:
- Software errors in the system software causing communication failures
- Defective hardware, such as a broken antenna or damaged cables
- Loose or corroded plug connections under the dashboard
- A faulty SOS button or related electronics
- Weak mobile network connections causing malfunctions
In the Peugeot 2008, user experiences often point to a defective SOS button or issues with the associated electronics. Loose cable connections also occur regularly and are sometimes relatively easy to fix.

How do you test the eCall system for the MOT?
Since 2018 a working eCall system has been mandatory in new cars. During the MOT it is checked whether the light is green and whether the system responds when activated. A defective system will cause the car to fail the test.
You can test the system yourself by holding down the SOS button for a few seconds. A connection should then be established with Peugeot roadside assistance, who will ask whether you actually need help. If you do not get a connection or the light is red, the system is not working properly.
Check this well before the MOT. Repairs can take anywhere from a few days to a week, depending on parts availability at the workshop.
Repair costs for the SOS system
The cost of repairing the SOS emergency call system in the Peugeot 2008 averages between 700 and 800 euros. This amount consists of several elements:
- Diagnosis at the dealer, often between 75 and 150 euros
- Replacement of the SOS module or antenna, including parts
- Labour costs for removing and refitting interior trim
- Software updates if required
The actual costs depend on the cause. A loose plug costs little or nothing, whereas replacement of the complete SOS module significantly increases the bill. With a software update, the repair may be limited to the diagnostic fee plus a small hourly rate.
‘ Note: always switch off the ignition before touching any electrical components. ’
What to do if a fault occurs
Does the red light appear or do you get a dashboard warning? Then schedule a workshop visit straight away. The car remains safe to drive, but the automatic emergency assistance in the event of an accident is no longer available. Always carry a mobile phone with you for emergencies.
First check for loose connections yourself before going to the dealer. Look under the dashboard near the SOS button for cables and plugs. Sometimes a connector has come loose. You can easily fix this by clicking the connector back into place. Note: always switch off the ignition before touching any electrical components.
Persistent problems require specialist equipment. Peugeot dealers have the right diagnostic tools. Independent garages with VAG-compatible equipment (VAG stands for Volkswagen Group and covers diagnostic systems for various brands) can also help. This is often cheaper because their hourly rates are lower.

Fixing the fault yourself
Some owners try to clear the fault code with an OBD scanner (On-Board Diagnostics, a port for reading fault codes) via apps. This can temporarily switch off the warning light, but does not solve the underlying problem. If the SOS light is red, a professional diagnosis is advisable.
Do not carry out software updates yourself. This requires access to the Peugeot network. Dealers remotely check whether updates are available for your vehicle. In many cases an update solves the problem if the fault is software-related.
Impact on safety and warranty
A non-functioning SOS system is above all a safety risk in the event of an accident. The car would normally detect a heavy impact and automatically call the emergency services with location data. Without a working system the automatic emergency call will not be made.
If the fault occurs within the warranty period, Peugeot will cover the costs. Check your purchase invoice and warranty conditions. The eCall system is often covered by the electronics warranty, which for new cars is usually two to three years. With used cars, there may sometimes still be remaining warranty.
‘ Early detection prevents unpleasant surprises at the MOT. ’
Prevention and maintenance
Regularly checking the instrument panel helps to detect faults at an early stage. Watch out for red lights and warnings that appear when the car is started. Early detection prevents unpleasant surprises at the MOT.
The system does not require specific maintenance, but operates via the mobile network. Make sure the SIM card in the car remains valid. Peugeot Connect SOS is free as standard. Check with your dealer whether the service is active. Also ask about the contract term.
Also keep an eye out for software updates. Dealers sometimes issue recalls or service campaigns for updates to fix known issues. Respond in good time to avoid later costs.

Possible alternatives if repair is expensive
Some owners choose to continue driving with the defective system. The car will still function technically as normal. This is not a long-term solution because of the MOT requirement: the system must be working for the test.
A second option is to look for an independent specialist with experience in Peugeot electronics. These workshops sometimes use alternative parts or second-hand modules, which can reduce costs. Always ask for a warranty on the repair.
For older cars with high mileage, the repair may be less attractive financially. In that case, consider the overall value of the car and compare it with the repair costs. Sometimes selling and replacing the car is a more realistic scenario.
User experiences with the SOS issue
On forums, owners of the Peugeot 2008 regularly share their experiences with the SOS system. The fault often appears suddenly, without any clear cause. Many reports come from 2020 and 2021 models.
Some users report that a cable repair or software update solves the problem. Others have a defective SOS module, which explains the higher repair costs. Experiences vary, which shows that the diagnosis differs from case to case.
Strikingly, the fault is rarely accompanied by other electrical problems. It seems to be an isolated defect in the SOS system itself, without a wider impact on the car.
The SOS emergency call system in the Peugeot 2008 requires targeted diagnosis and timely repair when faults occur. Regularly check that it works, especially before the MOT test, and contact a specialised workshop if you have problems to ensure both safety and approval.
Frequently asked questions
The most common causes are software errors in the eCall/connectivity system and hardware issues such as a defective SOS button, antenna or damaged wiring/loose plugs. Network or mobile connection problems can also trigger malfunctions. In the Peugeot 2008 (especially from 2020 onwards), cable or connector problems under the dashboard and occasionally a defective SOS module itself are often reported. In many cases the problem is solved with a software update or repair/replacement of the relevant module or wiring.
Yes, in principle you can continue driving with a faulty SOS emergency call system, because it has no direct effect on driving safety or engine operation. However, it does mean that the automatic emergency call system will not work in the event of an accident, so you must be able to call for help yourself using your phone. Because it is a safety feature and can result in an MOT failure, it is wise to have the problem fixed as soon as possible. Stop immediately and have the car checked if, in addition to the SOS warning, other red warning lights are on.
You can sometimes reset the system by switching the car off completely, locking it, waiting a few minutes and then restarting it to see if the light and the message disappear. Check under the dashboard (if accessible) to make sure there are no loose or damaged plugs and cables around the SOS module and gently push them firmly into place. You can use an OBD diagnostic tool to read and clear fault codes; if the malfunction was temporary or software-related, the warning will sometimes disappear permanently. If the red light or the message “Fault emergency call function” keeps returning, you cannot fix it yourself and a diagnosis/reset or repair at a Peugeot dealer or specialist is required.
The cost of repairing a faulty SOS emergency call system in a Peugeot 2008 is usually around €700, depending on the exact cause (for example the button, antenna, wiring or software). In many cases a simple software update is cheaper or even free of charge. Whether the repair is covered by the warranty depends on the year of manufacture, mileage and whether the factory or extended warranty is still valid. This is assessed on a case-by-case basis by the Peugeot dealer.
There are no large-scale official recalls known specifically for the SOS emergency call system of the Peugeot 2008, but there are reports of malfunctions. In many cases the dealer resolves this with a software update or repair of the wiring or the SOS module. Sometimes this is done under goodwill or warranty, depending on the age and history of the car. If a fault message appears, always have the dealer check which updates or service campaigns are still open for your chassis number.
