According to Wikipedia, 2009 to 2013 are the same transmissions
In its first year of production, the Enclave was often criticized for its 6-speed transmission, which was "hesitant to downshift."
[7] For 2009, though, the powertrain is regarded as more competent with more abundant torque. For its entire production, it has been regarded as too heavy, weighing nearly 5,000 pounds (2,300 kg) with all-wheel-drive. Buick's
VentiPorts have reappeared at the Enclave's introduction, a styling feature unique to Buick dating back to 1949.
Initial sales of the Enclave have been very strong, with demand far exceeding production capacity, forcing GM to add a third shift to the Delta Township plant.
With the arrival of the
Buick Envision (which is slotted between the Enclave and
Buick Encore) to North America in 2016 (for the 2017 model year), the Enclave will be bigger after Envision's debut, and the 2017 model year Enclave will be the last under the first generation platform.
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