The location of the battery on the 2017 Buick LaCrosse is in the trunk, to the left and under a plastic cover. To get the cover off, there is a little switch/knob that You pull back on and then You simply take the cover off. After doing that, remove the bottom floor panel, remove the panel underneath that and then remove the other plastic panel behind that. After doing all of that You will need to remove the fasteners on the left side. Pull back the trunk lining on the left side of the trunk and then You can see the full battery. Slide the cover on it to remove it and then remove the bolts on the sway bar and remove the sway bar and then You have access to the battery.
The 2017 Buick Lacrosse battery is in the trunk on the driver's side
Phylis D
July 16, 2020
A battery is located under the hood of the 2017 buick lacrosse, look for the large black box that has a red and black connector on the top.
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