EPBL-A248
EPBL_a248_csmDynamicApplyFailed
Also written as EPBL_A248 / EPBL A248 / EPBL_a248_csmDynamicApplyFailed / epbl_a248_csmdynamicapplyfailed
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 EPBL-A248 mean?
Tesla alert code in the Electronic Parking Brake Left (EPBL) module. Electronic Parking Brake apply was interrupted during dynamic apply. Apply failed. Electronic Parking Brake faulted while applying and during ESM_DYNAMIC Electronic Parking Brake could not be applied, car may be free rolling Non-nominal termination of external park Motor current was higher than expected. Motor current measurement, with calibration offset subtracted, was higher than 17 amps. Voltage drop on input power is high Electronic Parking Brake is performing dynamic apply One or more of the expected CAN messages from TAS were not received. A message the local ECU expects to receive from the TAS ECU hasn't been received within the expected timeout or the drop rate is too high while the TAS is CAN active. The ECU is considered CAN active when VCFRONT_vehGoToSleep is 0. All messages the local ECU expects to receive from the TAS ECU are being received or the TAS ECU is CAN inactive. Air suspension functionality may be missing. VCLEFT/VCRIGHT: Estimated resistance exceeds 500mOhm when input current is under 15A and exceeds 50mOhm when input current is over 15A. (VC-6540); VCFRONT: Estimated resistance exceeds 100mOhm when input current from PCS is under 10A and exceeds 20mOhm when input current is over 10A. VCLEFT/VCRIGHT: Estimated resistance is less than 500mOhm when input current is under 15A and is less than 50mOhm when input current is over 15A. (VC-6540); VCFRONT: Estimated resistance is less than 100mOhm when input current from PCS is under 10A and is less than 20mOhm when input current is over 10A. May result in vehicle becoming inoperable. Note: Service should ignore this alert on VCFRONT for the time being. Road grade is too steep to secure with Park Brake Car is parked on a road grade too steep to park; car parked on grade >30% or car with brembo Electronic Parking Brake parked on grade >27% and temperature less than -25degC Electronic Parking Brake not parked Car may not be secured by Electronic Parking Brake on the current road grade, may be free rolling One or more of the expected CAN messages required from DI when not in drive mode were not received.
Original Description
Electronic Parking Brake apply was interrupted during dynamic apply. Apply failed. Electronic Parking Brake faulted while applying and during ESM_DYNAMIC Electronic Parking Brake could not be applied, car may be free rolling Non-nominal termination of external park Motor current was higher than expected. Motor current measurement, with calibration offset subtracted, was higher than 17 amps. Voltage drop on input power is high Electronic Parking Brake is performing dynamic apply One or more of the expected CAN messages from TAS were not received. A message the local ECU expects to receive from the TAS ECU hasn't been received within the expected timeout or the drop rate is too high while the TAS is CAN active. The ECU is considered CAN active when VCFRONT_vehGoToSleep is 0. All messages the local ECU expects to receive from the TAS ECU are being received or the TAS ECU is CAN inactive. Air suspension functionality may be missing. VCLEFT/VCRIGHT: Estimated resistance exceeds 500mOhm when input current is under 15A and exceeds 50mOhm when input current is over 15A. (VC-6540); VCFRONT: Estimated resistance exceeds 100mOhm when input current from PCS is under 10A and exceeds 20mOhm when input current is over 10A. VCLEFT/VCRIGHT: Estimated resistance is less than 500mOhm when input current is under 15A and is less than 50mOhm when input current is over 15A. (VC-6540); VCFRONT: Estimated resistance is less than 100mOhm when input current from PCS is under 10A and is less than 20mOhm when input current is over 10A. May result in vehicle becoming inoperable. Note: Service should ignore this alert on VCFRONT for the time being. Road grade is too steep to secure with Park Brake Car is parked on a road grade too steep to park; car parked on grade >30% or car with brembo Electronic Parking Brake parked on grade >27% and temperature less than -25degC Electronic Parking Brake not parked Car may not be secured by Electronic Parking Brake on the current road grade, may be free rolling One or more of the expected CAN messages required from DI when not in drive mode were not received.
Affected Tesla Models
What You May Notice
- Electronic Parking Brake Left alert: Electronic Parking Brake apply was interrupted during dynamic apply. Apply failed. Electronic Parking Brake faulted whil
- Parking brake may not engage or release normally
- Vehicle may not allow Autopilot or auto-hold features
How to Diagnose and Resolve
- 1 Manually engage the parking brake via the touchscreen before exiting
- 2 Reboot the vehicle and check if the alert clears
- 3 Schedule a Tesla Service appointment
- 4 Avoid parking on steep inclines until resolved
Severity Notes
EPBL-A248 is an Alert in the Electronic Parking Brake Left system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.