Cooling System Data; Ignition System (Spark Plug) Data; Electrical System Data - Lexus RX 450H Owner's Manual

Cooling system
*
Capacity
Coolant type
*
: The coolant capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
Ignition system (spark plug)
Make
Gap
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 68°F (20°C):
Charging rates
RX450h_U_OM0E023U
8-1. Specifications
Gasoline engine

10.7 qt. (10.1 L, 8.9 Imp. qt.)
Power control unit

2.0 qt. (1.9 L, 1.7 Imp. qt.)
Use either of the following:
• "Toyota Super Long Life Coolant"
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and non-
borate coolant with long-life hybrid organic
acid technology
Do not use plain water alone.
DENSO FK20HBR8
0.03 in. (0.8 mm)
12.6 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.)
5 A max.
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