High Temperature Derate and Shutdown

When the power steering pumps experience temperatures over 203°F (95°C), they start to derate. Steering the vehicle takes more effort. A power steering pump derate caution, as shown in Fig. appears on the driver display.

Fig. 1, High Temperature Derate Notification

If the power steering pumps reach 230°F (110°C), the pumps will shut down, resulting in a loss of power steering. The driver is notified by a caution window as shown in Fig. stating that power steering is not functional.

Fig. 2, High Temperature Shut Down Notification