2008 Lexus RX 400h Service and Repair Manual

Built around the 2008 RX 400h as Lexus actually configured it, this service and repair manual is matched to the year, the 3.3L V6 hybrid (3MZ-FE) and the driveline your RX left the assembly line with, so the clearances, torque figures and diagnostic trees you work from are the ones written for this car rather than a close approximation carried over from an adjacent model year.

Engines

• 3.3L V6 HYBRID Naturally Aspirated

Trims

• AWD
• FWD

Known issues on the 2008 RX 400h. One recall is on federal record for this model year, and it covers the hybrid propulsion system inverter on certain RX 400h vehicles manufactured through December 2, 2008: the Intelligent Power Module inside the inverter module may contain transistors that have higher operating temperatures than the solder can support, and those transistors may be heat damaged. The vehicle may then enter a fail-safe/limp-home mode that limits drivability, and it is possible for the hybrid system to shut down while the vehicle is being driven, causing it to stall unexpectedly and increasing the risk of a crash. Owners have filed 127 complaints for the year. The diagnostic and repair procedures behind the hybrid system and its inverter are here.

Whether you are tracing a fault in the hybrid system, testing the inverter, or working through a scheduled service interval, it keeps you on the OEM procedure and the specification Lexus set for this 2008 RX 400h.