The justices ordered a California court to consider whether the damage award was out of line. The high court also told Kentucky judges to decide whether Ford owed £11m to the family of a miner killed when a Ford pickup truck slipped into reverse and crushed him.
The amounts could be reduced under a recent Supreme Court ruling setting limits on punitive damages. The high court did not give a formula for determining what punishment was reasonable but said last month juries should not consider a company's wealth in making the decision.
That ruling is especially important for large companies such as Ford that can face multiple lawsuits over their products.