Lexus LS 600hL 2007, Emergency Response Manual

Page: 28 / 38

– 23 –
EMERGENCY RESPONSE
Overhaul
(Continued)
Procedure #2 (Alternate if power button is inaccessible)
1. Remove the engine compartment and fuse box covers.
2. Remove the IG2 relay in the engine compartment fuse box
as illustrated on page 17. If the correct relay cannot be
recognised, pull both relays in the fuse box.
3. Disconnect the 12 Volt auxiliary battery in the luggage
compartment.
•
Stabilise Vehicle
If not already done, properly chock the vehicle to prevent the
vehicle body from dropping.
Recovery/Recycling of NiMH HV Battery Pack
Clean up of the HV battery pack can be accomplished by the vehicle
recovery crew without further concern of runoff or spillage. For
information regarding recycling of the HV battery pack, contact the
nearest Lexus dealer or Lexus Australia.
Spills
The LS 600hL contains the same common automotive fluids used in
other non-hybrid Lexus vehicles, with the exception of NiMH
electrolyte used in the HV battery pack. The NiMH battery electrolyte is
a caustic alkaline (pH 13.5) that is damaging to human tissues.
The electrolyte, however, is absorbed in the cell plates and will not
normally spill or leak out even if a battery module is cracked.
A catastrophic crash that would breach both the metal battery pack
case and a metal battery module would be a rare occurrence.
Similar to the use of baking soda to neutralise a lead-acid battery
electrolyte spill, a dilute boric acid solution or vinegar can be used to
neutralise a NiMH battery electrolyte spill.
NOTE:
Electrolyte leakage from the HV battery pack is unlikely due to its
construction and the amount of available electrolyte contained within
the NiMH modules. Any spillage would not warrant a declaration as a
hazardous material incident. Responders should follow the
recommendations as outlined in this emergency response guide.
In an emergency, check the Material Safety Data Sheets (MSDS) on
page 29.