VCLEFT_a592 — Vehicle Load Shed

Full alert identifier: VCLEFT_a592_vehicleLoadShed

Alert description

The low voltage (LV) battery is no longer supported by the power conversion system (PCS) due to a condition affecting the LV system. The vehicle low voltage electrical system needs to shed electrical loads by cutting power to some systems / electronic control units (ECUs)

Potential impact

All nonessential features / components will no longer be available, with support reserved for critical functions like operating doors, windows, exterior lights, and front trunk (frunk).

Set condition

Low voltage (LV) battery is not supported by the power conversion system (PCS)

Clear condition

Low voltage (LV) battery is supported by the power conversion system (PCS).

Signals to check

These diagnostic fields are associated with VCLEFT_a592. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
DI Gear `VCLEFT_a592_DI_gear` 0 INVALID 1 P 2 R 3 N 4 D 7 SNA	—
Lvbmssoc `VCLEFT_a592_LVBMSSOC`	%
Vcleft vcrightmia `VCLEFT_a592_VCLEFT_VCRIGHTMIA`	—
VCLEFT Bridge Off `VCLEFT_a592_VCLEFT_bridgeOff`	—
VCLEFT Energy Active Decel `VCLEFT_a592_VCLEFT_energyActiveDecel`	—
VCLEFT Energy Critical Pullover `VCLEFT_a592_VCLEFT_energyCriticalPullover`	—
VCRIGHT Instant Bridge Off `VCLEFT_a592_VCRIGHT_instantBridgeOff`	—
VCRIGHT Instant Pcs Efuse Off `VCLEFT_a592_VCRIGHT_instantPcsEfuseOff`	—

Show 17 more fields

Signal	Unit
VCRIGHT Instant Pcs Not Active `VCLEFT_a592_VCRIGHT_instantPcsNotActive`	—
VCRIGHT Instant Rear Efuse Off `VCLEFT_a592_VCRIGHT_instantRearEfuseOff`	—
VCRIGHT Slow Bridge Off `VCLEFT_a592_VCRIGHT_slowBridgeOff`	—
VCRIGHT Slow Pcs Efuse Off `VCLEFT_a592_VCRIGHT_slowPcsEfuseOff`	—
VCRIGHT Slow Pcs Mia `VCLEFT_a592_VCRIGHT_slowPcsMia`	—
VCRIGHT Slow Pcs Not Active `VCLEFT_a592_VCRIGHT_slowPcsNotActive`	—
VCRIGHT Slow Pcs Power Insufficient `VCLEFT_a592_VCRIGHT_slowPcsPowerInsufficient`	—
VCRIGHT Slow Rear Efuse Off `VCLEFT_a592_VCRIGHT_slowRearEfuseOff`	—
VCRIGHT Slow Vcrear Mia `VCLEFT_a592_VCRIGHT_slowVcrearMia`	—
Amp Hour Bucket Count `VCLEFT_a592_ampHourBucketCount`	Ah
Backstop Bucket Count `VCLEFT_a592_backstopBucketCount`	Ah
Backstop Hit `VCLEFT_a592_backstopHit`	—
Crash Detected `VCLEFT_a592_crashDetected`	—
Frunk Open `VCLEFT_a592_frunkOpen`	—
Jump Post Active `VCLEFT_a592_jumpPostActive`	—
Vehicle Power State `VCLEFT_a592_vehiclePowerState` 0 OFF 1 CONDITIONING 2 ACCESSORY 3 DRIVE	—
Vehicle Speed `VCLEFT_a592_vehicleSpeed`	kph

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCLEFT_a592.