Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
to be able to fix both of those issues a scan tool will be needed to pull the codes in the ABS system to see what is triggering the ABS light to come on which can usually be one of the wheel speed sensors
as for the service tire monitor being on you would need to be sure all 4 tires are set to the correct pressure then drive it and see if it goes out if not a shop will need to try to perform a relearn with the tire scan tool if it still stays on or if one of the sensors will not learn usually it will need a tire sensor which is part of the tire valve stem inside each rim / wheel
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