The pre-crash system fail-safe function and details are indicated in the table below.
| Cause | Warning Message | Fail-safe Operation | Conditions to Return to Normal Condition |
|---|---|---|---|
| A malfunction exists in part of pre-crash safety system | "CHECK PCS SYSTEM" or "PCS TEMPORARILY NOT AVAILABLE" | Depending on malfunctioning part, pre-crash seat belt, pre-crash brake or brake assist system may stop operating | Repair malfunctioning part |
| Radiator grille or millimeter wave radar sensor assembly is dirty | "PCS TEMPORARILY NOT AVAILABLE" | Depending on dirty part, pre-crash seat belt, pre-crash brake or brake assist system may stop operating | Clean radiator grille or millimeter wave radar sensor assembly |
| Millimeter wave radar sensor assembly cannot detect possible collision object because of bad weather, such as snow | "PCS TEMPORARILY NOT AVAILABLE" | Depending on weather, pre-crash seat belt, pre-crash brake or brake assist system may stop operating | The weather becomes better |
| Overheating prevention function of seat belt control ECU operates*1 | "PCS TEMPORARILY NOT AVAILABLE" | Pre-crash seat belt may stop operating | Temperature of seat belt motor goes down, and seat belt control ECU becomes operative |
*1: The overheating prevention function operates when the seat belt control ECU detects a rise in seat belt temperature because of excessive seat belt operation.