The pre-crash safety system fail-safe function and details are indicated in the table below.
| Cause | Warning Message | Fail-safe Operation | Conditions to Return to Normal Condition |
|---|---|---|---|
| Malfunction exists in part of pre-crash safety system | "Check PCS System" or "PCS Not available now" |
Depending on the malfunctioning part, the pre-crash safety seat belts or the brake assist system may stop operating.*1 | Repair the malfunctioning part |
| Radiator grille or millimeter wave radar sensor is dirty | "PCS Not available now" | Depending on the amount of dirt on the radiator grille or millimeter wave radar sensor, the pre-crash safety seat belts or the brake assist system may stop operating.*1 | Clean the radiator grille or millimeter wave radar sensor |
| Pre-crash sensor cannot detect possible crash object because of bad weather, such as snow | "PCS Not available now" | Depending on the amount of dirt on the radiator grille, the pre-crash safety seat belts or the brake assist system may stop operating.*1 | Sensor can detect an object |
| Overheating prevention function of seat belt control ECU operates*2 | "PCS Not available now" | The pre-crash safety seat belts may stop operating. | Temperature of the seat belt goes down, and the seat belt control ECU becomes operative |
Tech Tips
*1: The pre-crash safety seat belts operate only with sudden braking.
*2: The overheating prevention function operates when the seat belt control ECU detects a rise in seat belt control ECU temperature because of excessive seat belt operation.