Help needed automatic transmission oil
 

Hi everyone I shall be thankfull if somebody could help me regarding the automatic transmission gear oil change for my land cruiser GXR 2003 i just bought it and the guy before me didnt change the gear oil and filter since he bought the car in 2003 the cars odometer is almost 2 lakh and 18000(218000km).Could you please tell me what should i do now is there any chances for gear to become out of order if I change the gear oil and filter now at present there is no problem with the transmission.