2014 Lexus IS250 trailer

2844-5. Using the driving support systems
IS250_EE(OM53C51E)
■The Blind Spot Monitor function is operational when
●The BSM main switch is set to on
●Vehicle speed is greater than approximately 16 km/h (10 mph).
■The Blind Spot Monitor function will detect a vehicle when
●A vehicle in an adjacent lane overtakes your vehicle.
●Another vehicle enters the detection area when it changes lanes.
■Conditions under which the Blind Spot Monitor function will not detect a vehicle
The Blind Spot Monitor function is not designed to detect the following types of vehicles
and/or objects:
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles traveling in the opposite direction
●Guardrails, walls, signs, parked vehicles and similar stationary objects*
●Following vehicles that are in the same lane*
●Vehicles driving 2 lanes across from your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Blind Spot Monitor function may not function correctly
●The Blind Spot Monitor function may not detect vehicles correctly in the following con-
ditions:
• During bad weather such as heavy rain, fog, snow etc.
• When ice or mud etc. is attached to the rear bumper
• When driving on a road surface that is wet due to rain, standing water etc.
• When there is a significant difference in speed between your vehicle and the vehicle
that enters the detection area
• When a vehicle is in the detection area from a stop and remains in the detection
area as your vehicle accelerates
• When driving up or down consecutive steep inclines, such as hills, a dip in the road
etc.
• When multiple vehicles approach with only a small gap between each vehicle
• When vehicle lanes are wide, and the vehicle in the next lane is too far away from
your vehicle
• When the vehicle that enters the detection area is traveling at about the same speed
as your vehicle
• When there is a significant difference in height between your vehicle and the vehicle
that enters the detection area
• Directly after the BSM main switch is set to on
• When your vehicle is towing a trailer
●Instances of the Blind Spot Monitor function unnecessarily detecting a vehicle and/ or
object may increase under the following conditions:
• When there is only a short distance between your vehicle and a guardrail, wall etc.
• When there is only a short distance between your vehicle and a following vehicle
• When vehicle lanes are narrow and a vehicle driving 2 lanes across from your vehi-
cle enters the detection area
• When items such as a bicycle carrier are installed on the rear of the vehicle

2874-5. Using the driving support systems
4
Driving
IS250_EE(OM53C51E)
■Conditions under which the Rear Crossing Traffic Alert function will not detect a vehi-
cle
The Rear Crossing Traffic Alert function is not designed to detect the following types of
vehicles and/or objects.
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles approaching from directly behind
●Guardrails, walls, signs, parked vehicles and similar stationary objects*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking spaces next to your vehicle*
●Vehicles backing up in the parking space next to your vehicle
*: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Rear Crossing Traffic Alert function may not function cor-
rectly
The Rear Crossing Traffic Alert function may not detect vehicles correctly in the follow-
ing conditions:
●During bad weather such as heavy rain, fog, snow etc.
●When ice or mud etc. is attached to the rear bumper
●When multiple vehicles approach continuously
●Shallow angle parking
●When a vehicle is approaching at high speed
●When parking on a steep incline, such as hills, a dip in the road etc.
●Directly after the BSM main switch is set to on
●When your vehicle is towing a trailer
●Directly after the engine is started with the BSM main switch on
●Vehicles that the sensors cannot detect
because of obstacles

547
9 9-1. Specifications
Vehicle specifications
IS250_EE(OM53C51E)
X18-inch tires
*: 5 passengers
XCompact spare tire
■When towing a trailer (vehicles with a towing package)
Add 20.0 kPa (0.2 kgf/cm2 or bar, 3 psi) to the recommended tire inflation pressure and
drive at speeds below 100 km/h (62 mph).
Ti r e s i z e225/40R18 88Y, 255/35R18 90Y
Tire inflation
pressure
(Recommended
cold tire inflation
pressure)Vehicle speedFront wheel
kPa (kgf/cm2 or
bar, psi)Rear wheel
kPa (kgf/cm2 or
bar, psi)
More than 210 km/h
(130 mph)270 (2.7, 39)*250 (2.5, 36)270 (2.7, 39)*250 (2.5, 36)
210 km/h (130 mph)
or less250 (2.5, 36)250 (2.5, 36)
Wheel size18 × 8J (225/40R18), 18 × 8 1 /2J (255/35R18)
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Ti r e s i z eT125/70D17 98M
Tire inflation pressure
(Recommended cold tire
inflation pressure)420 kPa (4.2 kgf/cm2 or bar, 60 psi)
Wheel size17 × 4T
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)

584Alphabetical index
IS250_EE(OM53C51E)
Tire pressure warning system .........428
Function ..................................................428
Initializing................................................428
Installing tire pressure warning
valves and transmitters................428
Registering ID codes ....................... 429
Tire pressure warning reset
switch.................................................... 429
Warning light ....................................... 478
Tires ............................................................ 427
Chains .....................................................289
Checking ............................................... 427
Emergency tire puncture
repair kit ..............................................507
If you have a flat tire ............. 496, 507
Inflation pressure................................546
Replacing ...............................................496
Rotating tires ........................................ 427
Size............................................................546
Snow tires ..............................................290
Spare tire................................................496
Tire pressure warning system ..... 428
Warning light ....................................... 478Tools............................................... 497, 508
Top strap ......................................................72
Towing ...................................................... 468
Emergency towing ........................... 468
Towing capacity................................. 538
Towing eyelet ........................................ 471
Trailer towing ........................................ 184
Traction Control (TRC) ..................... 265
Trailer towing .......................................... 184
Transmission............................................. 197
Automatic transmission.................... 197
Driving mode select switch.......... 263
If the shift lever cannot be
shifted from P................................... 523
M mode.................................................. 200
Paddle shift switches.......................... 199
TRC (Traction Control) ..................... 265
Trip meters ................................................. 95