check brake fluid level.
If the handbrake is not engaged, and the warning light is coming on, it may mean that there are components in the braking system that require maintanence. Or, it could mean that the master cylinder is low on brake fluid.
handbrake light
it means your handbrake is on
usually a sticky switch on handbrake, had any welding recently ?, worn shoes ?
The handbrake... Low brake fluid warning
Check your master brake cylinder, as the warning light will come on if the fluid level is low. If that is OK, you probably need to change your brake pads.
The handbrake light is also the 'low fluid' warning light. It is connected to the handbrake as that ensures that it is checked every time you use the handbrake. If it remains on all the time, then check the brake fluid and top up if required. If the fluid is ok then it is probably the switch on the lever and is adjustable.
it is your run flat tyre wraning you could hav a puntcher to reset the light there isd abutton under the handbrake
I am assuming you mean the dashboard handbrake warning light. On many modern cars, the handbrake warning light comes on when the brake fluid is low. The early indication of this is when the light comes on when going around a corner and then goes out once you straighten up. If the fluid gets really low the light will stay lit.
Is this not the warning light for the handbrake ? may mean that the handbreak has not been fully disengaged .
handbrake cable needs shortening
it has a sticky handbrake switch