1999 s80 2.9 non turbo - MESSAGE ABS SERVICE + STC

[sherry007]

I was checking the transmission oil by stopping the car on hand brake and on Reverse gear same time. Because I was alone.

Once I finished, Reserve the car and moved on, as soon I tried to take right turn while slowing down the car I heard a voice from left front wheel and message is on dash ABS SERVICE REQUIRED AND STC SIGN.

No issue while driving and braking so far. Only the message.

BTW it is first time I watching this message plus my front left axle gives clicking sound due to worn boots. Will appreciate advises on this.