: This battery ensures the emergency call system works even if the main car battery is destroyed or disconnected during an accident.
The Peugeot 2008 has an internal backup battery for the emergency call system (eCall / Peugeot Connect SOS). It’s . After 3–5 years, this small 3.7V Li-ion battery dies. You’ll see warnings like: "Emergency call system faulty" or "SOS system service required" – even though everything else works.
Inside, you will see a small circuit board and the battery—often wrapped in foam or glued down.
For many Peugeot models, accessing the telematics unit requires removing the glovebox. This usually involves opening the glovebox, removing any screws or clips holding it in place, and gently pulling it out to gain access to the area behind it. peugeot 2008 sos battery replacement
The SOS battery in the Peugeot 2008 is typically located in the rear of the vehicle and is designed to provide backup power to the emergency response system in the event of a main battery failure. The battery is usually a dedicated, non-standard size, and its replacement requires specific knowledge and precautions.
Replacing this battery is famously more complex than a standard battery swap: Hidden Location
Open the windows (to prevent being locked out) and disconnect the negative terminal of your main car battery in the engine bay. Wait 5 minutes for the car's computers to shut down. : This battery ensures the emergency call system
The Peugeot Connect SOS system is a critical safety feature designed to automatically contact emergency services in the event of a serious accident. It relies on its own backup battery to function independently of the car's main 12V battery, ensuring it can work even if the main battery is destroyed in a crash.
: Snap the access door closed. Reconnect all color-coded aerial plugs and electrical looms back into the primary telematics box. Phase 4: Reconnecting the Car System
Replace the battery
Open the compartment door using a small flathead screwdriver.
Close the telematics unit, reinstall the glovebox, and start the engine. The red flashing light should now be extinguished, indicating a successful replacement. On some models, you may need to drive the vehicle for a few minutes to reset the system.
The SOS (emergency call) system in the Peugeot 2008 is part of the vehicle’s telematics/safety module and uses an internal backup battery to ensure the unit can operate briefly if the vehicle’s main electrical supply is lost. Replacing the SOS/emergency-call battery requires care: incorrect handling can disable the emergency system, trigger fault codes, or violate vehicle warranty/repair policies. Below is a detailed, practical guide covering identification, safety, step-by-step replacement, troubleshooting, and post-replacement checks. After 3–5 years, this small 3
This article provides a comprehensive guide to understanding, detecting, and replacing the SOS battery in your Peugeot 2008. What is the Peugeot 2008 SOS Battery?