Symptoms
- Radio presets are blank or reset to factory defaults
- Clock shows the wrong time or 12:00
- Seat, mirror, or other memory settings also reset
- Happened right after a battery replacement or jump start
Likely causes
- Common12V battery was disconnected or fully drainedMost infotainment and radio settings are stored in memory that relies on constant power from the battery.
- CommonBattery replacement without a memory-saver deviceSwapping the battery without keeping backup power to the electronics clears saved settings.
- PossibleSoftware reset after an updateSome updates reset settings to default as part of the installation process.
What to do
- Reprogram your favorite radio stations by tuning to each one and holding the corresponding preset button until it saves.
- Reset the clock and date through the infotainment settings menu, or confirm it syncs automatically via GPS after a few minutes of driving.
- Reprogram seat, mirror, or steering wheel memory positions if your car has that feature.
- For future battery work, ask your mechanic to use a memory-saver device that keeps power flowing during battery replacement.
- If settings keep resetting on their own without any battery work, that points to a different, ongoing power issue.
When to call a pro
If settings reset repeatedly without any battery disconnection, have a mechanic check for a parasitic drain or loose battery connection.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.