Power Steering System
NOTICE
Never steam clean or high-pressure wash the
steering gear. Internal damage to gear seals, and
ultimately the steering gear, can result.
NOTICE
Avoid turning the tires when they are against a
curb, as this places a heavy load on steering
components and could damage them.
The power steering pumps, which are electrically
driven, provide power assist for the steering system.
WARNING
Driving the vehicle without the power-assist
feature of the steering system requires much
greater effort, especially in sharp turns or at low
speeds, which could result in an accident and
possible injury.
Drivers should carefully use the power available with
the adaptive and electro-hydraulic power steering
systems. If the front tires become lodged in a deep
hole or rut, drive the vehicle out instead of using the
steering system to lift the tires out of the hole.
If the power-assist feature does not work due to
hydraulic fluid loss, steering pump damage, or
another cause, bring the vehicle to a safe stop. Do
not drive the vehicle until the cause of the problem
has been corrected.
An error with the adaptive power steering system
results in the red telltale shown in
An error
with the electro-hydraulic power steering system
results in the display of this telltale in yellow as
shown in
Cold Activation
When the ambient air temperature is below 32°F
(0°C), the power steering pumps go into cold
activation mode. The driver is notified by the
cautionary low temperature window shown in
In Cold Activation mode the speed of the power
steering pumps is limited until the motors warm up.
Power steering and adaptive power steering (APS)
are available, but steering requires more effort.
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
appears on the driver display.
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
stating that power
steering is not functional.
f611659a
03/21/2022
Fig. 12.1, Adaptive Power Steering Error Telltale
f612020
03/21/2022
Fig. 12.2, Electro-hydraulic Power Steering Error
Telltale
f612043
03/28/2022
Fig. 12.3, Cold Activation Notification
Steering System
12.1
Summary of Contents for PX113064S T 2016
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