Jeep steadily gave up a market it had created to rivals, particularly Toyota and Range Rover.
Toyota issued $1.75 billion of green bonds, to help finance customer leases and purchases of hybrids.
One of the biggest single green bond offerings has been from Toyota, which in March sold $1.75 billion in green bonds.
The money raised will be put to use to finance the sale and leases of Toyota and Lexus hybrids.
“I cannot believe Justice will not impose a fine larger than what it did against Toyota,” said Ditlow.