Toyota Sienna 2010-2026 Owners Manual: If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Toyota dealer as soon as possible.
Visible symptoms
- Fluid leaks under the vehicle (Water dripping from the air conditioning after use is normal.)
- Flat-looking tires or uneven tire wear
- Engine coolant temperature gauge needle continually points higher than normal
Audible symptoms
- Changes in exhaust sound
- Excessive tire squeal when cornering
- Strange noises related to the suspension system
- Pinging or other noises related to the engine
Operational symptoms
- Engine missing, stumbling or running rough
- Appreciable loss of power
- Vehicle pulls heavily to one side when braking
- Vehicle pulls heavily to one side when driving on a level road
- Loss of brake effectiveness, spongy feeling, pedal almost touches the floor
Using a flatbed truck
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be damaged.
WARNINGObserve ...
Fuel pump shut off
system
To minimize the risk of fuel leakage when the engine stalls or
when an airbag inflates upon collision, the fuel pump shut off
system stops the supply of fuel to the engine.
Follow the procedure bel ...
Other materials:
DSP Error
DTC 44-78 DSP Error
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
44-78
An error occurs during the decode process (MP3 /
WMA).
-
INSPECTION PROCEDURE
HINT:
After the inspection is completed, clear the DTCs.
NOTICE:
Th ...
Inspection
1. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR
(a) Using a dial gauge , check the runout of the ring
gear.
Maximum runout:
0.07 mm (0.0028 in.)
If the runout is greater than the maximum, replace
the ring gear with a new one.
2. INSPECT DIFFERENTIAL RING GEAR BACKLASH
(a) Using a dial gauge, ...
Starter Relay Circuit High
DTC P0617 Starter Relay Circuit High
MONITOR DESCRIPTION
While the engine is being cranked, the positive battery voltage is applied to
terminal STA of the ECM.
If the ECM detects the Starter Control (STA) signal while the vehicle is being
driven, it determines that
there is a malfunction i ...
