Lexus IS250 IS220d GSE20 ALE20 - PRE-CRASH SAFETY
PRE-CRASH SAFETY SYSTEM - FAIL-SAFE CHART
- HINT:
- The pre-crash safety 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-collision safety system | "CHECK PCS SYSTEM " to "PCS NOT AVAILABLE NOW" | Depending on malfunction part, pre-crash safety seat belt or brake assist system may stop operating*2 | Repair malfunctioning part |
| Radiator grille or millimeter wave radar sensor is dirty | "PCS NOT AVAILABLE NOW" | Depending on dirty part, pre-collision seat belt or brake assist system may stop operating*2 | Clean radiator grille or millimeter wave radar sensor |
| Pre-crash safety sensor cannot detect possible crash object because of bad weather, such as snow | "PCS NOT AVAILABLE NOW" | Depending on dirty part, pre-crash safety seat belt or brake assist system may stop operating*2 | Sensor can detect an object |
| Overheating prevention function of seat belt control ECU operates*1 | "PCS NOT AVAILABLE NOW" | Pre-crash safety seat belts | Temperature of seat belt 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.
*2: The pre-crash safety seat belts operate only with sudden braking.
LEXUS IS250, IS220d / GSE20 ALE20