Disconnect and Reconnect the Battery

Disconnecting the 12 V battery on your Jaguar F-Pace (2016–present) is a job most owners can do on the driveway, whether you are fitting a fresh battery, laying the car up for the winter, or working near the airbags and seat-belt pretensioners. The one thing that makes the F-Pace a little different from an older car is its battery monitoring system (BMS), which keeps track of the battery’s age and condition so the charging system and stop/start can work efficiently. None of that stops you doing the job by hand — it just explains a few quirks you may notice afterwards. Follow the right order and the car relearns everything cleanly.

Where the 12 V Battery Is

The 12 V battery on the F-Pace sits under the bonnet in the engine bay, behind a cover. Lift the cover or trim panel and you will see the two terminals: the negative (−) post, usually with a black lead, and the positive (+), usually red and often under a hinged plastic cap. On the negative clamp you will also find the small battery monitoring sensor (BMS) connector — the module that reports current in and out of the battery. Make a mental note of how it clips on so you can refit it exactly as it was.

Getting Ready

• Switch the ignition fully off, take the smart key well away from the car, and close the doors so the electrics settle.
• Turn off the lights, climate, and anything else that draws power, and make sure the boot and interior lamps are not left on.
• Note down anything held in memory — radio presets, saved seat and mirror positions, and the clock — so you can restore them.
• Wait a couple of minutes after switching off for the modules to power down before you touch a terminal.
• Have the right spanner ready (typically a 10 mm), plus gloves and eye protection; remove any metal watch or bracelet.

Disconnecting

1. Confirm the ignition is off and the key is away from the car.
2. Slacken the clamp on the negative (−) terminal first and lift it off the post, easing the BMS connector clear with it.
3. Tuck the negative lead aside so it cannot spring back onto the post.
4. Only then loosen and remove the positive (+) lead if you are taking the battery out.

Working near airbags or pretensioners? Leave a minute or two after the negative comes off before you start, so any stored energy in those circuits has dissipated.

Reconnecting

1. Fit the positive (+) terminal first and tighten its clamp.
2. Refit the negative (−) lead last, making sure the BMS connector clicks back onto the sensor exactly as it came off, then tighten.
3. Check both clamps are snug — a loose terminal causes odd electrical faults — then switch the ignition on.

What You’ll Need to Reset Afterwards

Because the F-Pace loses its short-term memory when the battery is off, a few things need your attention once power is back:

• Clock and radio presets — re-enter the time and your saved stations.
• Power windows — one-touch and anti-pinch drop out; run the window re-initialisation on each glass so auto up/down works again.
• Panoramic roof — if the car has one and the auto function feels off, re-initialise it as the handbook describes.
• Seat and mirror memory — re-save your positions if they were stored.
• Stop/start and the BMS — on a new battery the BMS ideally needs registering with Jaguar diagnostic equipment so it charges the correct battery profile; after a like-for-like swap it usually settles over a few drives, which is why stop/start can stay inactive for a while.
• A few dashboard warnings may light briefly and self-clear once the car has been driven a short distance.

If a Warning Light Stays On or the Car Feels Off

• Recheck that both clamps — and the BMS connector — are fully seated and tight.
• Take the car for a short drive with a few gentle turns so the windows, steering and stability systems relearn.
• Re-run the window re-initialisation if the glass won’t auto-close or bounces back.
• If stop/start refuses to work for a long time, the battery may genuinely be old or low on charge rather than the BMS still learning.
• Anything that won’t clear stores a fault code — you can decode it on autodtcs.com.

Frequently Asked Questions

Where is the battery on a Jaguar F-Pace?

It is under the bonnet in the engine bay, behind a cover. Lift the cover to reach the negative and positive terminals; the battery monitoring sensor clips onto the negative clamp.

Which terminal do I disconnect first?

Always the negative (−) first when disconnecting, and reconnect it last. On reassembly the positive (+) goes on first, then the negative with its BMS connector.

Does a new battery need coding on the F-Pace?

Ideally yes — the BMS should be registered with Jaguar equipment so it charges the new battery to the right profile. A like-for-like swap will usually run fine and settle after a few drives, though stop/start may stay off in the meantime.

What do I have to reset after disconnecting?

The power windows re-initialise, and you re-enter the clock, radio presets and any saved seat or mirror positions. The BMS relearns the battery state as you drive.

Will disconnecting the battery clear fault codes or the service light?

It may clear some temporary codes, but it does not reset the service interval, and any fault with a live cause will simply log again. Fix the underlying issue rather than relying on a battery pull.

Can I jump-start it instead of disconnecting?

If the aim is just to get going after a flat battery, yes — use the under-bonnet jump points and there is no need to disconnect anything. Disconnecting is only for renewal, storage or working near the airbags.

If a warning light stays on after reconnecting the battery, look up the stored code on autodtcs.com.