Use a battery maintainer. Every new vehicle has a constant battery drain from multiple systems. Even an AGM will fail earlier if not charged properly. My last FoMoCo battery lasted over 10 years with a maintainer.
Keeping the hood open is ridiculous. I just added a short heavy extension cord and left a few. Inches hanging out of the hood and closed it. I did the same for my onboard battery maintainer on the driver's side. The fit is snug, but the hood shuts fine.
Make sure to re set the Battery Monitor System with the new battery or the problem will persist. The procedure is in the manual. Then use a battery maintainer when parked. New vehicles have a constant battery drain.
A bit off topic, but if you install a cheap battery maintainer and plug it in while parked, your battery will last for years. Modern vehicles have a constant drain on the battery, even when the vehicle is off. That results in the battery often running at partial charge.
All newer vehicles have a constant battery drain from the multiple computer systems Unless you drive long distances regularly, the battery never gets a full charge.
Get a battery maintainer/charger and plug it in when parked. They only draw 1 or 2 amps.
It sounds like the dealer has not reset the BMS properly. It is easy to do. It is in the manual.
It involves having the ignition on but not started.
Within 10 seconds,
Flash the high beams 5 times.
Press and release brake pedal 3 times.
Wait a few seconds and battery warning light flashes 3...
I bought my Bronco from Woodridge Ford in calgary. They wanted 3 weeks to book an oil change. I got same day service from Cam Clark Quick Lane in Airdrie. So long Woodridge.
Cornering lights were added by the Insurance Institutions and safety boards. In order to get the highest ratings, vehicles must have them. Lack of them will drop one star iff the safety rating. And yes, it is the fig lights.
In all likelihood, your battery monitor system has not been reset after the new battery install. The system assumes the old battery is still there. Look up reset BMS in the manual. All new vehicles should have a battery maintainer (charger) plugged in whenever the vehicle is parked.
Does anyone have any suggestions to keep the black plastic exterior trims from looking 10 years old? They are always faded and soiled. I have tried ArmorAll, plastic treatment, waxes and McGuires ceramic wax. They always look so dingy.