The battery is behind the passenger seat. To get to it you must remove the floor mat on front of the second row seats; then remove the plastic cover covering the tracks of the right side middle row seat. This will then expose a carpeted cover held down by a torx head screw. Remove the screw and cover and the battery will be exposed.
Under foor at the rear of the front passenger seat
The 2011 Buick Enclave has a V6 engine.
The 2011 Buick Enclave has 24 valves.
The 2011 Buick Enclave is a gas-powered vehicle.
The 2011 Buick Enclave is 16 ft. 9.8 in. (201.8 in.) long.
The 2011 Buick Enclave has a 6-speed shiftable automatic.
The 2011 Buick Enclave has double overhead cam (DOHC).
The maximum payload of the 2011 Buick Enclave is 1631 lbs..
The 2011 Buick Enclave's turning circle is 40.4 ft..
The curb weight of the 2011 Buick Enclave is 4780 lbs..
The 2011 Buick Enclave runs on regular unleaded.
The 2011 Buick Enclave has 57.4 in. of front hip room.
The 2011 Buick Enclave has 39.0 in. of rear head room.