2005 Chevrolet Blazer Owner's Manual - Page 160
2005 Chevrolet Blazer Manual
Page 160 highlights
Highbeam On Light This light will illuminate when the headlamp high beams are in use. The SERVICE 4WD light comes on to indicate that there may be a problem with the four-wheel drive system and service is required. Malfunctions can be indicated by the system before any problem is apparent, which may prevent serious damage to the vehicle. This system is also designed to assist your service technician in correctly diagnosing a malfunction. Tow/Haul Mode Light See Headlamp High/Low-Beam Changer on page 3-8. Service Four-Wheel Drive Warning Light United States Canada This light will come on when the tow/haul mode has been selected. For more information, see "Tow/Haul Mode" under Towing a Trailer on page 4-59. United States Canada If you have this light, it should come on briefly when you turn on the ignition, as a check to show you it is working. 3-34
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