Bleach was spilled on the back seat of my car and I'm worried it will bleach it white. Can clorax bleach be cleaned out of car fabric seat?

if the bleach is still fresh, try to do what ever is possible not to let it dry, time is the enemy. if at all possible try to flush it off with clean cold water. the more water you are able to flush it with the less bleaching action it may have, it will probably leave a bleach mark but this method may help it to be minimal. this happend to my wifes 2008 Jeep, a gallon of bleach leaked onto the floor mat on the way home from the grocery store and we took it to the car wash and rinsed ,rinsed ,rinsed, the stain was minimal and it was a black floor mat. good luck.