Installed new battery on Saturday due to ABS light comes on then the brake like comes on and I don’t know why.
Battery should not affect ABS system. You may need to take it to a shop that can scan ABS codes. You can try an Auto Parts store to have codes read but their readers may not have the software for ABS.
The ABS and brake light could have come on because your brake fluid is low, or you have a problem with the brake system. A new battery will not fix this problem. first check your brake fluid level to see if it is low. If it is full, then you need to have your vehicle scanned for codes and then post the codes back here and we can probably help you further. most auto parts stores will scan your vehicle for free and give you the codes
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