Key Fob Battery Low
Early warning that the coin battery in your key fob is dying — replace it within days.
What it means
The car noticed the fob's signal weakening and is warning you before you're locked out. Fob batteries typically last 2–4 years. After this warning you have days to weeks, not months.
Can you keep driving?
Yes — but buy a CR2032/CR2025 coin cell soon. When the battery dies completely, you'll need the emergency key blade and the backup start procedure.
What to do now
- 1
Buy the coin cell listed in your owner's manual (commonly CR2032).
- 2
Pry the fob open at its seam, swap the cell noting orientation, and snap it shut.
- 3
Know your backup: where the physical key blade hides and where the emergency start reader is.
Likely causes
- • Fob battery at end of life
Typical fix cost
$3–$10 for a coin cell; most fobs open with a small flathead screwdriver
Ranges reflect mainstream US parts-and-labor pricing; your vehicle and region will vary.