Most vehicles start off with higher voltage and ambient temp plays a big role in how fast and how much the volts will drop. Common to see 13.8 - 13.9, on a hot morning down here the Mopar ECU may decide a 13.9 startup and 13.5 after 10 miles of warmup is appropriate. The voltage is always hunting .3 to .4 volts. That's what drove Landyacht nuts. I think the engineers had a hooka in the lunchroom.
When I was rebuilding I kept an assortment of voltage regulators. Most were adjustable with no thermistor in the voltage divider. Unchanging voltage is called FLAT COMPENSATING.
Detroit Engineers now
"Lemmee atit lemme atit"
Bluetooth, houndstooth, it has to have a catchy name and end up as an obstruction, not an aid. The more worthless **** we pack into the car, the more days the POS will spend in our dealer's bays. How can we control the rugs and the glove box by Alexa? The ashtray?
"Ding! Ding! Ding!"
WE HAVE DETECTED DRINKS IN THE CUPHOLDERS FOR THREE HOURS
THE WINDSHIELD HAS DETECTED RAIN, SELECT ONE, LOW, MEDIUM. HIGH?
"DING! DING DING!"
Detector senses right rear power window has detected excessive pressure without full window closure. Check your children.
"DING DING DING"
"Detectors have sensed pedestrian beneath the chassis"
all this **** must be what Americans lust for.
DING DING DING