On a 2019 Honda Ridgeline, the battery sits in the engine bay on the passenger side, secured in a dedicated tray near the firewall. This location is standard for the Ridgeline and is accessible from under the hood. The positive terminal is covered in red, and the negative cable runs to the chassis ground. For most owners, this is the starting point when inspecting electricals or replacing the battery.
Exact placement and how to access
In the engine bay, look to the passenger side (the right side when facing the car). The battery sits in a dedicated tray secured by a hold-down bracket, generally toward the firewall and front-right area of the engine compartment. You may need to move the air intake snorkel or a nearby fuse box slightly to gain clear access. The battery dimensions match typical Honda 12-volt group size, with the red positive terminal cover visible atop the post and a black negative terminal connected to the ground strap.
Before you begin work
To avoid shorts or injury, ensure the vehicle is off, the parking brake is engaged, and you’re wearing safety glasses and gloves. Have the right tools on hand, and dispose of a removed battery at an appropriate recycling facility.
Here is a concise, step-by-step guide to locate and inspect the battery on this model:
- Park the Ridgeline on a level surface, set the parking brake, and turn off the ignition. Remove keys and wait for any stored electronics to power down.
- Open the hood and locate the battery on the passenger side of the engine bay. Look for the red plastic cover over the positive terminal and the black cable to the chassis ground.
- Check for corrosion on terminals and ensure the battery cables are firmly connected and not loose or damaged.
- If you need to replace it, disconnect the negative terminal first, then the positive terminal. Remove the hold-down bracket or clamp with the appropriate wrench or socket.
- Remove the battery from the tray, place the new battery in the same orientation, secure the hold-down, and reconnect the positive terminal first, followed by the negative.
- Close the hood and start the engine to confirm proper operation and reset of any electrical systems if needed.
Access and replacement steps will ensure the battery is handled safely and correctly, with attention to terminal polarity and secure mounting.
Maintenance considerations and safety tips
Regularly inspect battery terminals for corrosion, clean with a baking soda solution if needed, and check the battery's state of charge. If the vehicle experiences slow cranking or electrical dimming, the battery or alternator may need service. Always recycle old batteries according to local regulations and Honda guidelines.
Summary
The 2019 Honda Ridgeline places its 12-volt battery in the engine compartment on the passenger side, secured in a dedicated tray near the firewall. Access requires opening the hood and identifying the red-positive terminal cover and ground strap. With proper safety precautions and the right tools, you can inspect, disconnect, or replace the battery as needed, then verify operation after reassembly.


