Simplify the following text for a Grade 13 native English-speaking person.
Original: For instance , when an auto warranty is provided through a car dealership , it 's usually a sub-contracted warranty ( often from the retailer with the lowest offer ) , where vehicle repairs are negotiated to a lower rate , often compromising the service , labor and parts to a lower standard .
Simplified: For instance , when an auto warranty is provided through a dealership from the manufacturer , repairs on the vehicle are reimbursed at a lower negotiated rate .