ES300h_OM_OM33B71U_(U)
5399-1. Specifications
9
Vehicle specifications
Cooling system
Capacity
Gasoline 
engine7.6 qt. (7.2 L, 6.3 Imp.qt.)
Po w e r  
control unit
3.4 qt. (3.2 L, 2.8 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant” 
• Similar high-quality ethylene  glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid  organic acid technology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO FK16HR-A8
Gap0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs.  Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage at 68F
(20 C):12.5 V or higher: Fully charged
12.2 — 12.4 V: Half charged
12.0 V or lower: Discharged
(Voltage is checked 20 minutes after the hybrid system
and all lights are turned off.)
Charging rates5 A max. 
         
        
        586Alphabetical index
ES300h_OM_OM33B71U_(U)
Emergency, in case ofIf a warning buzzer sounds................................................. 499
If a warning light turns on.............. 499
If a warning message  is displayed ....................................... 505
If the 12-volt battery is  discharged .........................................523
If the electronic key  does not operate properly ......... 521
If the hybrid system will  not start ................................................. 518
If the shift lever  cannot be shifted from P ........... 520
If you have a flat tire ......................... 508
If you think something  is wrong.............................................. 498
If your vehicle becomes  stuck ....................................................... 531
If your vehicle has to be  stopped in an emergency ..........493
If your vehicle needs  to be towed .......................................494
If your vehicle overheats ................ 527
Emergency flashers ............................. 492
Energy monitor .........................................97 Engine
Accessory mode ................................. 167
Compartment ..................................... 445
Hood........................................................ 443
How to start the hybrid system ....................................................166
Identification number.......................536
Ignition switch (power switch) ......166
Overheating......................................... 527
Power switch. ........................................166
Engine compartment cover..............446
Engine coolant Capacity.................................................539
Checking .................................................451
Preparing and checking before winter ....................................280
Engine coolant temperature  gauge ........................................................ 86
Engine oil Capacity................................................. 537
Checking ............................................... 447
Preparing and checking before winter ....................................280