Check the battery as follows:
Battery exterior
Make sure that the battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps.

Brake fluid
Before rechargingLocation
PROBLEM SYMPTOMS TABLE
Symptom
Suspected Area
Rear window defogger does not operate
(Indicator lamp On)
Communication Function
RR DEF 30 A Fuse
Defogger Relay
Rear Window Defogger Wire
Wire Harness
A/C ECU ...