Alco Green light

Hi All,

On purchasing our first caravan a 2012 Bailey Pegasus 2 Milan I was fortunate to receive an Alco stabiliser as standard. The Alco system has a green light mounted on the A frame to indicate if the system is working, and illuminates green when in working order. Our first tow car was a Ford AWD Kuga which kept the green light constantly illuminated. I have now changed our tow car to a 2008 Range Rover Vogue with a factory fitted tow bar and electrics. Which causes the green light to blink on and off like an indicator on a car. The mechanical noise of the Alco system engages as normal but the bulb continues to blink on and off. I can’t find any information to identify if different car manufacturers systems alter the appearance of the green light on the A frame do you think this is normal.