Air Conditioning System: Precaution

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

DO NOT HANDLE REFRIGERANT IN AN ENCLOSED AREA OR NEAR AN OPEN FLAME
ALWAYS WEAR EYE PROTECTION

Fig 1: Precaution For Charging Cylinder
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
BE CAREFUL NOT TO GET LIQUID REFRIGERANT IN YOUR EYES OR ON YOUR SKIN
If liquid refrigerant gets in your eyes or on your skin:
1. Wash the area with lots of cold water.
  CAUTION: Do not rub your eyes or skin.
2. Apply clean petroleum jelly to the skin.
3. Go immediately to a hospital or see a physician for professional treatment.
NEVER HEAT CONTAINER OR EXPOSE THE CONTAINER TO OPEN FLAME

Fig 2: Precaution For Liquid Refrigerant Eyes On Skin
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
BE CAREFUL NOT TO DROP CONTAINER OR APPLY PHYSICAL SHOCKS TO IT
DO NOT OPERATE COMPRESSOR WITHOUT ENOUGH REFRIGERANT IN REFRIGERANT SYSTEM
If there is not enough refrigerant in the A/C system, oil lubrication will be insufficient and the compressor may be damaged. Necessary care should be taken to avoid this.
DO NOT OPEN HIGH PRESSURE MANIFOLD VALVE WHILE COMPRESSOR IS OPERATING
Open and close only the low pressure valve. If the high pressure valve is opened, refrigerant flows in the reverse direction causing the charging cylinder to rupture.

Fig 3: Identifying Correct And Incorrect Connection Of Valves
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
BE CAREFUL NOT TO OVERCHARGE SYSTEM WITH REFRIGERANT
If the system is overcharged with refrigerant, it causes problems such as insufficient cooling, poor fuel economy, engine overheating, etc.

NOTICE FOR INITIALIZATION:

When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.

REFERENCE CHART

System Name	See procedure
Lighting System	INITIALIZATION
Power Door Lock Control System	INITIALIZATION
Power Window Control System	INITIALIZATION
Power Back Door System	INITIALIZATION
Sliding Roof System (for Multi-panel Moon Roof)	INITIALIZATION
Sliding Roof System (for Standard)	INITIALIZATION
Back Door Closer System	INITIALIZATION
Electrical Back Door Outside Handle System	INITIALIZATION

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
1. This vehicle is equipped with a SRS (Supplemental Restraint System) such as the driver, front passenger, side, and curtain shield air bags. Failure to carry out service operation in the correct sequence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including removal or installation of parts, inspection or replacement), be sure to read the precautionary notices (See PRECAUTION ).
GENERAL PRECAUTION
1. While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.