Motormouth: Problem may stem from a weak or dying battery

Q: My 2023 GV80 has a lot of bells and whistles and one of them is the engine turning off at stop lights to save gas. I noticed that the feature had stopped working so I took the vehicle back to the dealership. Two hours after my appointment time, it was returned to me with the statement that there was no error code and there were many things that could affect that feature from operating correctly. I was surprised but they offered nothing more.

Motormouth: $650 to replace a headlamp

Q: I recently took my Jeep in for routine service including the replacement of the driver’s side headlamp. I know that it’s a pain to replace, but $650 to replace the bulb seems to me to be outrageous! The dealership said the HID ballast alone was about $450. I asked if I could switch to LED technology instead and was told no. Is it true that LEDs are not an option? Should I move on to an independent mechanic?