If The Hybrid System Will Not Start - Lexus GS 450h2011 Manual

5-2. Steps to take in an emergency

If the hybrid system will not start

If the hybrid system will not start even though correct starting procedures
are being followed (
■
The hybrid system will not start even if you are carrying the cor-
rect electronic key
One of the following may be the cause of the problem.
● The electronic key battery may be discharged. (P. 575)
● There may not be sufficient fuel in the vehicle' s tank.
Add fuel to the vehicle.
● There may be a malfunction in the steering lock system.
● There may be a malfunction in the immobilizer system. (P. 99)
■
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume
One of the following may be the cause of the problem.
● The 12 volt battery may be discharged. (P. 578)
● The 12 volt battery terminal connections may be loose or cor-
roded.
■ The interior lights and headlights do not turn on, or the horn does
not sound
One of the following may be the cause of the problem.
● One or both of the 12 volt battery terminals may be discon-
nected.
● The 12 volt battery may be discharged. (P. 578)
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.
572
GS_HV_U (OM30C14U)
May 21, 2010 2:41 pm

P. 148), consider each of the following points.