Montreal will feature just one DRS detection zone this weekend, instead of the two it had for the 2011 event won by Jenson Button.
The zone will become active after Turn 10 and will begin 600 metres before the braking zone for Turn 13. It has also been shortened by 50 meters since last year and is now a total of 600m long. It was reduced in length because it was determined to have made it too easy to overtake through the section in last year's race.
The second DRS zone on the start-finish line has been dropped for this year.