Why is my ABC light on and it says drive carefully?

my 2002 cl500 abc light is on,start the car put it in reverse car raised up then go down to right height,then when you start driving car raise up in the rear,

Car raising up while performing is normal. Car raising up while reversing is still normal, but depends. If I were you I would change my Hydraulic Fluids with new pressurized hydraulic fluids. That ABC light up even on good working cars.