1998 Chevrolet Blazer Owner's Manual - Page 141

Speedometer and Odometer Your speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (kmh). Your odometer shows how far your vehicle has been driven, in either miles (used inthe United States) or kilometers (used in Canada). You may wonder what happensif your vehicle needsa new odometer installed. If the new one can be set to the mileage total of the old odometer, then it must But if be. it can't, then it's set at zero, and a label must be put on the driver's door to show the old mileage reading when the new odometer was installed. Each tachometer has a different limit depending on the powertrain in your vehicle. The tachometer has three areas: normal operating range, red warning range and red danger range. The normal operating range shows your engine speed during normal driving conditions. For example, when the needle points to 2, it means the engine is running at 2,000 revolutions per minute (rpm).The tachometer needle will vary all the time that the engine is running. The shaded red warning range tells you that yourengine speed is reaching its upper limits. Don't drive very long with the tachometer in the red warning range. If you have a manual transmission, shift to a higher gear as soon aspossible. If you have an automatic transmission, lift yourfoot off the accelerator pedal. The solid red danger range tells you that yourengine speed is at its upper limits. You should immediately shift to ahigher gear,or lift your foot off the accelerator pedal. Wip Odometer The trip odometer can tell you how far your vehicle has been driven since you last setthe trip odometer to zero. To view the trip odometer, press the button near the readout. To reset the trip odometer, hold the button until it resets. Tachometer (If Equipped) The tachometer displays the engine speed in revolutions per minute (rpm). I NOTICE: Do not operate the engine with the tachometer in the red range, or engine damage will occur.