Road trip from Houston to Dallas

How To Access Positive & Negative Terminals (Engine Bay) - Hybrid 4G Tacoma

rustytaco · 2026-02-24T23:54:06+00:00

Thought this might be helpful for those new to hybrids (like myself). If you didn't know already, the starter battery is under the rear seat in a hybrid Tacoma. Good news is, you don't have to remove clips and lift up your rear seat anytime you need access to the battery. In the engine bay, there are two dedicated terminals that are used for jumping the truck if the battery dies. This also applies to attaching something like an air compressor to power with alligator clips. This is ultimately what prompted me to figure this out. We finished off-roading last weekend, and I needed somewhere to hook up my MORRFlate compressor to air back up. Simply put, you need to get access to your passenger's side fuse box and a bracket that grounds out on the motor. Inside the fuse box, there is a terminal with a swiveling red cover on it. This is your positive terminal, essentially the same thing as connecting to the positive post on your starter battery. The negative can literally be anything in the engine bay that's grounded out, but the easiest place to connect your compressor or jumper cables is to a large metal bracket attached to the block (it secures a harness). Pictures for reference below... In the photo above, the red circle on the left is the fuse box, and the one on the right is the ground point. Close up above of the positive connection. Close up above of the ground point.

underground.trd

New member

Jun 12, 2024

Just hit the 5K mile mark and this truck has been a blast =) we most recently did a 600 mile road trip from Houston to Dallas (and back)

Still determined to build the best “Swiss-army knife” of a truck for our lifestyle (check out the MPG we averaged on the way up to Dallas)

Road trip from Houston to Dallas

underground.trd

New member

Attachments

Recent

How To Access Positive & Negative Terminals (Engine Bay) - Hybrid 4G Tacoma

Let's See Your Wheel & Tire Combo!

Backwoods Adventure Mods DRIFTR Roof Rack - Install Overview & First Impressions

New Member, Greater New Orleans

Show Me Your Roof Rack Setups!

Ultimate Bed Setup? Backwoods Adventure Mods Overland Bed Rack + DRIFTR Topper!

Suspension Upgrade Options for Limited Models w/ Adaptive Variable Suspension (AVS)

2025 Underground Sport(Finalizer) Build Thread

Installing Superwinch On C4 Front Bumper - Issues With Small Fan/Sensor Clearance?

Show Me Your Tire Inflation/Deflation (Portable Air) Setups!

New V2 Wire Hider From KC - Hidden Windshield Wiring Harness Routing/Organization

New KClips, Zip Tie Mount For Cable/Harness Management

Similar threads