Negative Battery Cable Disconnection/Connection: Notes

WARNING: This page is about a different car, the 2016 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Before removing the SRS air bag system-related parts, always disconnect the negative battery cable terminal and wait for 1 min. or more to allow the back-up power supply to deplete its stored power. (See AIR BAG SYSTEM SERVICE WARNINGS [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .) (See AIR BAG SYSTEM SERVICE WARNINGS [STANDARD DEPLOYMENT CONTROL SYSTEM] .)
Contact with the positive battery cable terminal could cause electrocution due to a short circuit and result in serious injury or death, or damage to vehicle parts. Do not contact the positive battery terminal when performing the procedure.

CAUTION:

With the battery connected and the ignition switched ON, or if servicing is performed for a long period (10 min or more) with the ignition switched off.
If a door is opened/closed after disconnecting the negative battery cable, the door interlock open/close may not function and the door glass may be damaged. Always disconnect the negative battery cable with the doors on both sides opened.