The word "equinox" derives from the Latin roots "equi" and "nox," which translates as "equal night." The phrase refers to the two times of the year when the Earth's axis is exactly on level with the level with the sun, causing causing nighttime hours to exactly equal daylight hours. In historical times, equinoxes, like the summer and winter solstice, were used to mark the passage of seasons. General Motors surely must have had this thought in mind when searching for a replacement for the beloved but aging Blazer. With the dark night of high fuel prices on the horizon, this Equinox marked nothing if not the passage of a season of gas-guzzling truck derivatives into a brighter one of smarter, cleaner, more sophisticated and more efficient transportation.
Connect a memory saver device to the Equinox following its manufacturer's instructions. Pop the hood and look to the front-right of the engine bay; you'll see the square, plastic cover over the fuse box. Release the cover's hooks and remove it.
Release the hooks that hold the fuse block to the top of the battery terminal lid, and lift the fuse block out of the way. With the fuse block removed, remove the bolts that secure the battery box lid, and remove the lid. Remove the battery's negative terminal with a ratchet and socket.
Remove the positive terminal, and lift the battery free of the engine bay. Install the new battery in the same orientation. Install the positive and then the negative leads, and tighten them to 13 foot-pounds with a torque wrench.
Install the battery box lid, and tighten its fasteners to 11 foot-pounds. Snap the fuse block back into place on top of the lid, and then snap the fuse block cover in place.
