VCFRONT-A182
VCFRONT_a182_replace12VBattery
Also written as VCFRONT_A182 / VCFRONT A182 / VCFRONT_a182_replace12VBattery / vcfront_a182_replace12vbattery
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does VCFRONT-A182 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The 12V battery needs to be replaced. info from manualVCFRONT_A182 The battery voltage is below 10.5V for 5 seconds or the 12V battery has been overcharged 10 times or the battery voltage reached 12.2V before the Ah count reached -2.25Ah 10 times or 4 voltage drops were observed when load current on 12V was greater than 20A. The vehicle lost power from the 12V battery and PCS (as would happen during 12V battery replacement). The battery may lack the power to support vehicle 12V auxiliary systems: car may fail to start and potentially high range loss will be experienced.
Original Description
The 12V battery needs to be replaced. info from manualVCFRONT_A182 The battery voltage is below 10.5V for 5 seconds or the 12V battery has been overcharged 10 times or the battery voltage reached 12.2V before the Ah count reached -2.25Ah 10 times or 4 voltage drops were observed when load current on 12V was greater than 20A. The vehicle lost power from the 12V battery and PCS (as would happen during 12V battery replacement). The battery may lack the power to support vehicle 12V auxiliary systems: car may fail to start and potentially high range loss will be experienced.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The 12V battery needs to be replaced. info from manualVCFRONT_A182 The battery voltage is below 10.5V for 5 seconds or t
- Some features (climate, lights, or charging) may be temporarily unavailable
- Alert notification in the Tesla app
How to Diagnose and Resolve
- 1 Perform a soft reboot (hold both scroll wheels)
- 2 Check for pending OTA software updates in Controls > Software
- 3 If multiple features remain non-functional, schedule a service appointment
Severity Notes
VCFRONT-A182 is an Alert in the Vehicle Controller Front system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.