1997 Chevrolet Blazer Owner's Manual - Page 128

Speedometer and Odometer Your speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (km/h). Your odometer showshow far your vehicle has been driven, in either miles (used in the United States) or kilometers (used in Canada). on Each tachometer has a different limit depending the three powertrain in your vehicle. The tachometer has areas: normal operating range, red warning range and red danger range. The normal operating range showsyour engine speed during normal driving conditions.For example, when the needle points to 2, it means the engineis 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 teIlsyou that your engine 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, shiftto a higher gear as soon as possible. If you have an automatic transmission, lift your foot off of the accelerator pedal. The solid red danger range tells that your engine speed you is at its upper limits. Your should immediately shift to a higher gear, or lift your foot off of the accelerator pedal. Your odometer is tamper resistant. It will show silver lines between the numbers if someone tries to turn it back. You may wonder what happens if your vehicle needs a new odometer installed. If the new one can be set to the mileage total of the old odometer, then it must be. But if it can't, then it's set at zero, and a label must be put on the driver's door show the old mileage reading when to the new odometer was installed. Trip Odometer The trip odometercan tell you how far your vehicle has been driven since you last set the trip odometer zero. to To set the trip odometer zero, press the button near to the readout . I NOTICE: Do not operate the engine with the tachometer in the red range, or engine damage will occur. Tachometer (If Equipped) The tachometer displays the engine speed in revolutions per minute (rpm). 2-71