L-TT-0242-18_Rev
Service Bulletin Details
Public Details for: L-TT-0242-18_Rev
Tt: in some cases, customers may report the engine coolant temperature gauge on the combination meter intermittently reading max hot, or ?In the red zone,? (fig.1) on a vehicle with no other symptoms of overheating.
Models from 2018
| 2018 LEXUS ES HYBRID |
| 2018 LEXUS ES300H |
| 2018 LEXUS ES350 |
| 2018 LEXUS RX HYBRID |
| 2018 LEXUS RX350 |
| 2018 LEXUS RX450H |
Models from 2017
| 2017 LEXUS ES HYBRID |
| 2017 LEXUS ES300H |
| 2017 LEXUS ES350 |
| 2017 LEXUS RX HYBRID |
| 2017 LEXUS RX350 |
| 2017 LEXUS RX450H |
Models from 2016
| 2016 LEXUS ES HYBRID |
| 2016 LEXUS ES300H |
| 2016 LEXUS ES350 |
| 2016 LEXUS RX HYBRID |
| 2016 LEXUS RX350 |
| 2016 LEXUS RX450H |
Tech Tip L-TT-0242-18 Subject November 20, 2019 Market Engine Coolant Temperature Gauge Diagnosis Service Category Section Vehicle Interior Meter/Gauge/Display USA Applicability Applicable Models Models APPLICABLE VEHICLES 2016-2018 2016-2018 RX450H RX350 2016-2018 2016-2018 ES300H ES350 CONDITION In some cases, customers may report the engine coolant temperature gauge on the combination meter intermittently reading max hot, or “in the red zone,” (Fig.1) on a vehicle with no other symptoms of overheating. RECOMMENDATIONS If the condition of your vehicle matches the condition described on this document: 1. Keep IG ON and a. Take video and pictures showing the engine coolant temperature gauge position and any warning messages on the Multi Information Display b. Confirm engine coolant temperature in Techstream combination meter data list (Fig.2) and engine data list (Fig.3) and take snapshot c. Measure engine coolant temperature at upper radiator hose and take picture with visual infrared thermometer (if available) d. Turn IG Off 2. Create a TAS case and contact TAS and provide details prior to the repair. If it’s a weekend or holiday continue with diagnosis and repair, save all parts and details, contact TAS on the next available work day and review details with TAS engineer. a. When creating a TAS case: i. Use the following case coding to ensure it is directed to the Electrical group: Vehicle Interior + Meter/Gauge/Display + Temp Gauge + Abnormal Operation ii. Attach Pictures, Videos, and Techstream File to TAS Case Expires on Ver. 2.9 01/01/2018 L 11/20/2020 Rev2 © 2018, Lexus, a Division of Toyota Motor Sales, USA Page 1 of 2 Tech Tip L-TT-0242-18 November 20, 2019 Subject Market Engine Coolant Temperature Gauge Diagnosis USA Applicability Applicable Models Models RECOMMENDATIONS Fig. 2 Fig. 3 LINK REFERENCES This Tech Tip does not contain any link references Expires on Ver. 2.9 01/01/2018 L 11/20/2020 Rev2 © 2018, Lexus, a Division of Toyota Motor Sales, USA Page 2 of 2