2014 to 2020 Chevrolet Silverado 1500 battery replacement

Turn the truck off, pull the key, and give the accessories five minutes to fully power down. The GM body control module can stay awake for a while, so waiting matters.

Open the hood and peel back the black plastic top cover on the passenger side to expose the top of the battery. Group and CCA are printed on the label. Confirm it matches what you ordered.

If you are using a memory saver, plug it into the OBD2 port under the driver side dash now. Otherwise skip and expect a five minute relearn afterward.

Loosen the negative clamp bolt with the 10mm socket, spread the clamp with a small screwdriver, and lift the clamp off the post. Tuck the cable behind the airbox so it cannot fall back onto the post. Always negative first.

Slide the red plastic boot down first to expose the positive clamp nut. Lift the clamp off the post and tuck it away. Any dropped wrench across positive and metal will weld itself in place.

On 2017 trucks the hold-down is a single 10mm bolt at the front base of the battery, pinning a J-hook style clamp against the foot. On earlier 2014 to 2016 trucks there is sometimes a cross bar with a 13mm bolt on each end. Same idea either way.

Lift the old battery straight up and out. This is the heavy part, about 55 lbs. Lift with your knees, and watch your knuckles on the fender lip.

Wire brush both terminal clamps until the lead is shiny. Also brush the post clamp face on the truck side. Corrosion here is the number one reason a fresh battery still gives grief.

Set the new AGM in the tray, orienting it so the positive post is on the passenger side to match the cable reach.

Please check your service manual, but the torque spec on the hold down bolt is 11 ft lbs (15 Nm), commonly cited for this battery hold down bracket. Do not overtighten. It only needs to keep the battery from moving.

Slide a felt anti corrosion washer down each post, then install the positive terminal first. Snug the clamp bolt. Please check your service manual, but the torque spec on the terminal clamp is 44 in lbs (5 Nm).

Install the negative terminal, same torque, 44 in lbs (5 Nm).

Spray both terminals with red battery terminal spray, put the red boot back down over the positive, and click the plastic top cover back on.

Start the truck. Crank should be crisp. If you skipped the memory saver, expect the trans to shift a little firm for the first 20 miles while the adaptive learn rebuilds. Also relearn window auto up on each door by holding up on the switch for five seconds after it hits the top.