Paul's Travel Pictures

Chrysler Pacifica 12V Battery Replacement Guide
How to change a weak or dead 12 volt car battery in the engine bay of a 2017, 2018 and 2019 Chrysler Pacifica.

Main Menu            Home           Digital Cameras

Misc. Pictures            Articles            My Blog

2017 Pacifica Engine Bay
Pull Out Front of Intake
Front Air Intake Removed

This automotive maintenance tutorial was specifically written to assist owners of the first generation (2017, 2018, 2019 and probably also the 2020 and 2021 model years) Chrysler Pacifica minivan in checking, removing and replacing a weak or dead 12 volt car battery for the Pentastar 3.6L V6 engine.

Owners of other FCA (Fiat Chrysler America) vehicles from Chrysler, Dodge, Jeep, RAM or Fiat such as the Town & Country, 300, 200, Charger, Challenger, Durango, Journey, Grand Caravan, Wrangler, Grand Cherokee, Compass, Renegade, Patriot, RAM 1500, RAM ProMaster City, Fiat 500 and Fiat 124 may also find these DIY instructions to be helpful.

A few symptoms of a weak or dead 12V battery include slow starting, headlights that dim when you turn on other features such as the A/C or power window motors and a check engine / SES light or battery light illuminated on the gauge cluster.

If you have a digital multimeter tool, check to see if the voltage of the battery is above 12 volts.

The OEM battery's group size number is "H7". You could also use very similarly sized 94R battery.

A few compatible replacement H7 or  94R 12V batteries with their part numbers are as follows: ACDelco 94RAGM, NorthStar NSB-AGM94R, Exide Edge FP-AGML4/94R and the EverStart MAXX-H7 (at Walmart).

(If you have a Pacifica Hybrid or a newer model year, please consult your owner's manual or your dealership before purchasing a new battery.)

The tools needed to remove and replace the 12V battery include a 10mm socket, a short extension bar, a long 6" or 9" extension bar, a 1/4" or 3/8" drive ratchet.


Air "Snorkel" Removed
Old 12 Volt Battery
Loosen Negative Terminal
The first two steps are to open the hood and then move to the right (driver) side of the Pentastar 3.6L V6 engine bay.

In order to access the 12V car battery, you will need to remove the black plastic air intake tube (also known as the "snorkel") that covers the top of the battery.

Gently lift out the front part of the air intake assembly from the radiator cover.

Then pull the rear opening of the air intake out of the engine air filter box.

Set the air intake aside in a safe place.

Loosen the nut on the "-" negative terminal on the right side of the battery by turning it in the counterclockwise direction with a 10mm socket and a 1/4" drive ratchet.

Pull Off Negative Terminal
Cover & Tuck Away
Power Distribution Board
Carefully pull the negative terminal off the "-" battery post.

Wrap the terminal in a small towel and tuck it away on the side of the battery to help prevent accidental electrical contact.

Swing open the red plastic cover on the positive "+" terminal.

Loosen Counterclockwise
Remove Nuts
Removing Other Nuts
In order to remove the positive terminal, you will first have to disconnect a few wires and electrical connectors from the power distribution board.

Loosen the nut for the positive terminal by turning it in the counterclockwise direction with the 10mm socket and a 1/4" drive ratchet.

Then remove the two nuts on the "B" and "C" terminals to disconnect the two ring electrical connectors.

Set the two nuts aside in a safe place.

"A" "B" & "C" Terminals
Push In Release Tabs
Slide Out Power Plugs
There are three plastic electrical connectors on the power distribution board.

They have white, pink and black plastic power plugs.

White, Pink & Black
Pull Off Positive Terminal
Hold Down Clamp Bolt
Gently push in the release tabs on the top of the electrical connectors before sliding them straight out of their sockets.

Carefully pull the power distribution board and positive terminal off the top of the "+" battery post.

Move the PDB and "+" terminal off to the left side.

Long Extension Bar
Loosen Counterclockwise
Lift Out Clamp
Locate the black plastic hold down clamp or "block" at the front bottom edge of the battery.

Attach the long 6" or 9" extension bar to a 10mm socket and a 1/4" or 3/8" drive ratchet.

Loosen the single bolt that secures the hold down clamp to the battery tray by turning it in the counterclockwise direction.

Clamp Removed
Black Plastic Block & Bolt
Lift Out Old Battery
Lift out the hold down clamp and set it aside in a safe place.

Raise the two handles on the OEM battery and carefully lift it out of the engine bay.

Gently rest the old battery on the ground and try to avoid tipping it over or dropping it to prevent from having battery acid leak out.

Be sure to take the old battery with you to Walmart or the auto parts store to prevent from having to pay a "core", recycling or an environmental disposal fee.

OEM Part # 56029758AB
Clean Off Battery Tray
Lower In New Battery
The OEM battery in this 2017 Pacifica was part number 56029758AB (or 56029-758-AB).

Clean off any debris on the plastic tray so that the new battery will rest evenly on it.

If you can wait a few days for delivery, I recommend buying the ACDelco 94RAGM battery since it has excellent reviews on Amazon.

Carefully lower the new battery into the engine bay with the "-" negative post on the right side and the "+" positive post on the left side.

Avoid making contact with the battery posts!

Lower Hold Down Clamp
Spin In Bolt Clockwise
Spin With Extension Bar
Lower the black plastic hold down clamp down on to the front edge of the battery tray.

Spin in the bolt a few turns by hand in the clockwise direction to prevent it from becoming cross threaded.

Tighten Clamp Bolt
Push On Positive Terminal
Push In Electrical Connectors
Tighten the bolt on the hold down clamp in the clockwise direction with the 10mm socket, a long extension bar and a 1/4" or 3/8" drive ratchet until it is snug.

Check to see if the new battery can be rocked, moved or slid around on the tray.

If it can be moved, tighten the hold down clamp bolt an extra turn or two.

If you've had a problem with corrosion (white or blue powder) building up on the terminals or the battery posts, consider installing some felt anti-corrosion washers over the battery posts.

Lower the power distribution bracket and the positive terminal over the "+" positive battery post on the left side.

Push the white, pink/purple and black power plugs back into their sockets.

They should "click" securely into place.

Replace A B C Terminals
Tighten Nuts Clockwise
Replace the "B" and "C" ring connectors over their corresponding terminals on the PDB.

Tighten the two nuts in the clockwise direction with the 10mm socket and a 1/4" drive ratchet until they are snug.

Tighten Terminal Nut
Replace Red Plastic Cover
Push On Negative Terminal

Tighten the positive terminal nut in the clockwise direction with the 10mm socket and a 1/4" drive ratchet until it is snug.

Try to avoid over tightening the terminal nut to prevent from damaging the battery post which could lead to an acid leak.

Tighten Nut Clockwise
12V Battery Replaced
Replace Air Intake Tube
Carefully push the negative terminal over the "-" battery post.

Tighten the 10mm terminal nut in the clockwise direction until it is snug.

Lower the rear end of the air intake tube into the opening in the engine air filter box.

Lower the front end of the air intake assembly back into place.

Double check that the air intake is securely in place.

Please remember to adjust the time on the clock and program your favorite radio stations before you start driving.

Be sure to record the 12V battery change in your vehicle's service records.

For more, check out all of my Chrysler Pacifica Minivan DIY Repair & Maintenance Guides.

If you found this guide to be helpful, please consider making a small donation by clicking on the "Donate" button located to the right of this paragraph. Thank you!
(Note: I am not a registered charity. Donations are not tax deductible.)


Main Menu       Home       Digital Cameras

Misc. Pictures       Articles       My Blog


Copyright 2021
 All Rights Reserved

Paul's Travel Pictures is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to

Privacy Policy     About Paul & Author Contact Info