Dashboard lights malfunction, oil change and AC warm air
When you take it in for the oil change, have the other issues diagnosed and repaired.
Ask your shop to check the voltages from the battery and charging system. This is the diy’er test I use: Before the first start of the day, battery should measure about 12.6 volts; then immediately after starting the engine, 13.5 - 15.5 volts.