Operational Range
WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Transmitter is in range when located to either side of vehicle or behind vehicle within 60-100 ft. of vehicle. See Fig 1 . Operational range varies with orientation of transmitter. As useful battery life decreases, so will operational range of transmitter. Replace transmitter battery when operational range has severely decreased.