2012 TOYOTA HIGHLANDER HYBRID fuel pump

36 1-1. Hybrid system
■Hybrid battery air vents
There are air intake vents under
the second seats to cool the
hybrid battery (traction battery).
If the vents become blocked, the
hybrid battery may overheat,
leading to a reduction in hybrid
battery output.
Emergency shut off system
The emergency shut off system blocks off the high voltage current
and stops the fuel pump to minimize the risk of electrocution and fuel
leakage when a certain level of impact is detected by the impact sen-
sor. If the emergency shut off syste m activates, your vehicle will not
restart. To restart the hybrid system, contact your Toyota dealer.
Energy monitor/consumption screen
You can view the status of your
hybrid system on the multi-infor-
mation display (P. 37) and the
navigation system screen ( P.
37, 39). The following images
are examples only, and may vary
slightly from actual conditions.

504 4-3. Do-it-yourself maintenance
37 WIP-S10 A Air conditioning system
38 EFI NO.2 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
39 EFI NO.3 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
40 F/PMP 15 A Fuel pump
41 INJ 15 AStarting system, multiport fuel
injection system/sequential multi-
port fuel injection system
42 DEICER 15 A Windshield wiper de-icer
43 FILTER 10 A Condenser
44 RR DEF 10 A Rear window defogger
45 MIR HTR 10 A Outside rear view mirror defoggers
46 PWR OUTLET 20 A Power outlet
47 DOOR NO.1 25 A Multiplex communication system
48 H-LP RH HI 15 A Right-hand headlight (high beam)
49 H-LP LH HI 15 A Left-hand headlight (high beam)
50 H-LP RH LO 15 A Right-hand headlight (low beam)
51 H-LP LH LO 15 A Left-hand headlight (low beam)
52 HORN 10 A Horn
53 A/F 20 A Air fuel ratio sensor
54 S-HORN 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system
FuseAmpereCircuit

584
6-1. Specifications
Fuel infor mation
■Fuel tank opening fo r unleaded gasoline
To help prevent incorrect fueling, your Toyota has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
■ If your engine knocks
●Consult your Toyota dealer.
● You may occasionally notice light knocking for a short time while acceler-
ating or driving uphill. This is normal and there is no need for concern.
■ Gasoline quality
In very few cases, driveability problems may be caused by the brand of gas-
oline you are using. If driveability problems persist, try changing the brand of
gasoline. If this does not correct the problem, consult your Toyota dealer.
■ Gasoline quality standards
●Automotive manufacturers in the US, Europe and Japan have developed
a specification for fuel quality called World-Wide Fuel Charter (WWFC)
that is expected to be applied worldwide.
● The WWFC consists of four categories that are based on required emis-
sion levels. In the US, category 4 has been adopted.
● The WWFC improves air quality by lowering emissions in vehicle fleets,
and customer satisfaction through better performance.
Your vehicle must use only unleaded gasoline.
Select octane rating 87 (Research Octane Number 91) or higher. Use
of unleaded gasoline with an octane rating lower than 87 may result
in engine knocking. Persistent kno cking can lead to engine damage.
At minimum, the gasoline you use should meet the specifications
of ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

585
6-1. Specifications
6
Vehicle specifications
■
Toyota recommends the use of gaso line containing detergent additives
● Toyota recommends the use of gasoline that contains detergent addi-
tives to avoid build-up of engine deposits.
● All gasoline sold in the US contains detergent additives to clean and/or
keep clean intake systems.
■ Toyota recommends the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy-
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.
■ Toyota does not recommend blended gasoline
●If you use gasohol in your Toyota, be sure that it has an octane rating no
lower than 87.
● Toyota does not recommend the use of gasoline containing methanol.
●Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).DO NOT use gasoline
containing more than 10%
ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)