While GM is busy updating the fuel economy figures for the three Lambda based CUVs, Consumer Reports may have found more to the story. GM will update the fuel economy numbers for the three crossovers, bringing their combined ratings down by 2 MPG for the 2016 model year.
But, the 2015 model year will remain unchanged. For example, a 2016 GMC Acadia now gets 17 MPG combined with all-wheel drive, and 18 MPG with front-wheel drive. The 2015 model year receives 19 MPG no matter AWD or FWD. That’s a little strange.
A GM spokesperson responded to the matter stating, “ [the automaker] has checked and found no other models or model years were affected.”
We seriously doubt the older iterations of crossovers actually receive better fuel economy, and if the suspicion is correct, GM may have a serious problem on its hands.
Hyundai found itself in a similar situation after some models were found to have exaggerated fuel economy claims. The Korean automaker issued cards loaded with the absent fuel savings over their lifespan of owning the vehicle, plus 15-percent.
If GM finds itself in a similar situation, the overstatement could affect two million crossovers over the two generations of Traverse, Enclave, Acadia and Saturn Outlook.