handbrake warning

[tcpnul]

After starting the car while front jacked up,warnimg message came on and stays on.

I believe this is common.Any solution please

[alan333]

Check your brake fluid level first

[tcpnul]

Thanks,but it's the handbrake warning message

[Konrad C]

What is the message displayed? Can you take a picture and upload, because it will be easier. Take another photo to show any other warning lights whilst the engine is idling. 

I would not say it is common. I only had the message come on due a mechanic not properly securing a connector to a gearbox sensor, after the clutch was replaced. 

Another poster had a problem which turned out to be caliper pins - 

Before going down the route of replacing the actuator costs a lot of money, check the brake calipers to make sure nothing has seized. 
The actuator does not like moisture, so wading fords or jet washing is certain areas is a big no no.