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2003 Lexus GX 470 Owners Manual - Page 61

2003 Lexus GX 470 Manual

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Finish GAUGES, METERS AND SERVICE REMINDER INDICATORS (e) Malfunction Indicator Lamp This lamp comes on when the ignition key is turned to the "ON" position and goes off after the engine starts. This means that the warning light system is operating properly. If the lamp remains on, or the lamp comes on while driving, first check the followings. D Empty fuel tank If the fuel tank is empty, refuel immediately. D Loose fuel tank cap If the fuel tank cap is loose, securely tighten it. These cases are temporary malfunctions. The malfunction indicator lamp will go off after taking several driving trips. If the lamp will not go off even after the several trips, contact your Lexus dealer as soon as possible. If the fuel tank is not empty or the fuel tank cap is not loose ...D There is a problem somewhere in the engine, emission control system, electronic throttle control system, automatic transmission electrical system or warning light system itself. Contact your Lexus dealer as soon as possible to service the vehicle. If the engine speed does not increase with the accelerator pedal depressed down, there may be a problem somewhere in your electronic throttle control system. At this time, vibration may occur. However, if you depress the accelerator pedal more firmly and slowly, you can drive your vehicle at low speeds. Have your vehicle checked by your Lexus dealer as soon as possible. Even if the abnormality of the electronic throttle control system is corrected during low speed driving, the system may not be recovered until the engine is stopped and the ignition key is turned to "ACC" or "LOCK" position. CAUTION Be especially careful to prevent erroneous pedal operation. Emissions inspection and maintenance (I/M) programs Your vehicle may not pass a state emission inspection if the malfunction indicator lamp remains on. Contact your Lexus dealer to check your vehicle's emission control system and OBD (On−Board Diagnostics) system before taking your vehicle for the inspection. For details, see "Emissions inspection and maintenance (I/M) programs" on page 401. 47

Section	Page
Foreword	1
Foreword	2
Introduction	3
How To Use This Manual	5
Pictorial Index	8
Quick Reference	15
Keys and Doors	21
Switches	37
Gauges, Meters and Service Reminder Indicators	53
Interior Equipment	75
Exterior Equipment	96
Comfort Adjustment	108
Theft Deterrent	188
Air Conditioning	192
Audio	208
Starting and Driving	310
Driving Tips	352
In Case of An Emergency	372
Maintenance	408
Introduction	416
Engine	424
Chassis	440
Electrical Components	456
Body	472
Reporting Safety Defects For U.S. Owners	482
Foreword	484
Foreword	485
Introduction	486
How To Use This Manual	488
Pictorial Index	491
Quick Reference	498
Keys and Doors	504
Switches	520
Gauges, Meters and Service Reminder Indicators	536
Interior Equipment	558
Exterior Equipment	579
Comfort Adjustment	591
Theft Deterrent	671
Air Conditioning	675
Audio	691
Starting and Driving	793
Driving Tips	835
In Case of An Emergency	855
Maintenance	891
Introduction	899
Engine	907
Chassis	923
Electrical Components	939
Body	955

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Finish

GAUGES, METERS AND SERVICE REMINDER INDICATORS

(e)

Malfunction Indicator Lamp

This lamp comes on when the ignition key is turned to the

°ON± position and goes off after the engine starts.

This

means that the warning light system is operating properly.

If the lamp remains on, or the lamp comes on while driving,

first check the followings.

Empty fuel tank

If the fuel tank is empty, refuel immediately.

Loose fuel tank cap

If the fuel tank cap is loose, securely tighten it.

These cases are temporary malfunctions.

The malfunction

indicator lamp will go off after taking several driving trips.

If the lamp will not go off even after the several trips, contact

your Lexus dealer as soon as possible.

If the fuel tank is not empty or the fuel tank cap is not

loose ...

There is a problem somewhere in the engine, emission

control system, electronic throttle control system, automatic

transmission electrical system or warning light system itself.

Contact your Lexus dealer as soon as possible to service the

vehicle.

If the engine speed does not increase with the accelerator

pedal depressed down, there may be a problem somewhere

in your electronic throttle control system.

At this time, vibration may occur.

However, if you depress the

accelerator pedal more firmly and slowly, you can drive your

vehicle at low speeds.

Have your vehicle checked by your

Lexus dealer as soon as possible.

Even if the abnormality of the electronic throttle control system

is corrected during low speed driving, the system may not be

recovered until the engine is stopped and the ignition key is

turned to °ACC± or °LOCK± position.

CAUTION

Be especially careful to prevent erroneous pedal

operation.

Emissions inspection and maintenance (I/M) programs

Your vehicle may not pass a state emission inspection if the

malfunction indicator lamp remains on. Contact your Lexus

dealer to check your vehicle²s emission control system and

OBD (On

−

Board Diagnostics) system before taking your

vehicle for the inspection.

For details, see °Emissions inspection and maintenance (I/M)

programs± on page 401.