These instructions apply to the Isuzu D-Max Mk2 (TF) 2012-2020. For other models, please choose your vehicle here.
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Disconnecting the 12 V battery on your Isuzu D-Max (TF, 2012–2020) — for a new battery, winter storage, or work near the airbags — is a straightforward job. The battery is in the engine compartment.
Find the Battery First
The 12 V battery is in the engine compartment, in the usual front corner. Note your radio security code and preset stations before you start.
Disconnecting Safely
- Turn the ignition off and make sure all electrical consumers are off.
- Disconnect the negative (−) terminal first, then the positive.
- Working near airbags or seat-belt pretensioners? Wait a few minutes after disconnecting.
Reconnecting and Re-initialising
Reconnect positive first, then negative. The D-Max then needs a few items relearned:
- Power windows — re-initialise one-touch (see our window initialisation guide).
- Re-enter the clock and radio presets.
- Warning lights settle after a short drive.
If Something Isn’t Right Afterwards
- Warning lights often clear after a short drive.
- A persistent light stores a code — look it up on autodtcs.com.
- Fit a like-for-like battery of the correct size and rating — the D-Max has a hungry diesel starter.
Frequently Asked Questions
Where is the battery on an Isuzu D-Max?
In the engine compartment, in the usual front corner.
Which terminal first?
Negative (−) off first, reconnect it last.
What needs resetting afterwards?
Power windows may need re-initialising, plus the clock and radio presets.
How long should I wait near the airbags?
Give it a few minutes after disconnecting before working on airbags or pretensioners.
To relearn the windows, see our D-Max power-window initialisation guide. If a warning light stays on, decode it on autodtcs.com.
Disclaimer: The information on this page is provided for general guidance only. Always follow your official service manual and safety precautions when working on your vehicle. We are not responsible for errors, omissions, or any damage resulting from the use of this information.
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