C4 Interlock warning Light

[adeak1]

Dear All

I have the Interlock light comes on for 10 to 15 seconds when I start the car and the car is cold. It drive fine and when the start the car and the car is hot the light never light up. The light only come after the cars is sitting over night

Thanks
Andrew

[Hamptonsam]

Mine does that as well. I believe it is the system just pressurizing. Once it has adequate pressure, the light goes out.

[davisriley]

Normal. Mine comes on when I start it up, just as you described.

[nine11speedster]

Just found this post; adding to the above comments; my 89 C4 does the exact above as well.

[porterdog]

Agreed.