PEUGEOT 3008 2017 Handbook page 262

In the event of a breakdown
Never try to charge a frozen battery – risk
of explosion!
If the battery has frozen, have it checked
by a PEUGEOT dealer or by a qualified
workshop who will check that the internal
components have not been damaged and
that the container has not cracked, which
would mean a risk of toxic and corrosive
acid leaking.
Some functions, including Stop & Start,
are not available if the battery is not
sufficiently charged.
Disconnecting the battery
In order to maintain an adequate state
of charge for starting the engine, it is
recommended that the battery be disconnected
if the vehicle is taken out of service for a long
period.
Before disconnecting the battery:
F close all openings (doors, tailgate, windows,
sunroof),
F switch off all electrical consumers (audio
system, wipers, lighting, etc.),
F switch off the ignition and wait for four
minutes.
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At the battery, it is only necessary to
disconnect the (+) terminal.
Quick-release terminal clamp
Disconnecting the (+) terminal
F Raise the lever A fully to release the
clamp B.
F Remove the clamp B by lifting it off.
Reconnecting the (+) terminal
F Raise the lever A fully.
F Refit the open clamp B on the (+) terminal.
F Push the clamp B fully down.
F Lower the lever A to lock the clamp B.
Do not force the lever as locking will not
be possible if the clamp is not positioned
correctly; start the procedure again.
Following reconnection of the battery
After reconnecting the battery, turn on the
ignition and wait 1 minute before starting
the engine, in order to enable the electronic
systems to initialise.
For right-hand drive vehicles, when the
total distance recorder has reached
62 miles (100 km), it is necessary to wait
approx. 15 minutes before starting the
engine.
However, if minor problems persist following
this operation, contact a PEUGEOT dealer or a
qualified workshop.
Referring to the corresponding section, you
must yourself reinitialise or reset certain
systems, such as:
- the key with remote control or electronic key
(depending on version),