Kenworth Dashboard Lights and Meanings

Your manifold pressure gauge indicates the power your engine is putting out by showing the amount of turbo boost. If the pressure indicated by your manifold pressure gauge goes down, there may be something wrong with your engine. Have it checked by a qualified service person.

The Pusher Axle Air Pressure gauge(s) indicate the air pressure in the pusher axle(s) suspension air bags. This icon may have a numeral above the image of the wheel to indicate which pusher axle if there are multiple pusher axles on the vehicle.

The Tag Axle Air Pressure gauge indicates the amount of air pressure in the tag axle suspension air bags. This icon may have a numeral above the image of the wheel to indicate which pusher axle if there are multiple pusher axles on the vehicle.

This gauge tells you the condition of the fuel filter by indicating the restriction from the fuel filter to the fuel pump. Check the engine manual for proper restriction. Replace the filter with an approved filter only. Do not substitute the wrong micron element.

This gauge indicates the condition of the engine air cleaner and is measured by inches of water (H2O). A clean filter should register 7 in. H2O (may vary with system design) and a filter whose life is over will register approximately 25 in. H2O.

It is important to maintain oil pressure within acceptable limits. If oil pressure drops below the minimum psi a red warning light in the gauge will turn on, the Stop Engine light will come on and an audible alarm tone will sound.

The Engine Oil Temperature gauge indicates the engine oil temperature. If the oil temperature exceeds the maximum limits, a red warning light in the gauge will turn on. Do not exceed maximum engine oil temperature recommended by the engine manufacturer.

Your vehicle may also have a fuel pressure gauge.
Do not carry additional fuel containers in your vehicle. Fuel containers, either full or empty, may leak, explode, and cause or feed a fire, possibly causing death or personal injury. Do not carry extra fuel containers, even empty ones are dangerous.

Your Transmission Temperature Gauge indicates the temperature of the oil in your transmission. Watch this gauge to know when your transmission is overheating. If it is, have it checked by an authorized service representative. Maximum transmission temperature may vary, depending upon the transmission and type of lubricant. Check your transmission’s owner’s manual.

This gauge indicates the temperature of the lubricant in your vehicle’s axle(s). This temperature will vary with the kind of load you are carrying and the driving conditions you encounter. Maximum axle temperature may vary, depending upon the axle and type of lubricant. Very high temperatures signal a need to have your axle(s) lubrication checked. Depending on the vehicle configuration, there may be a drive axle temperature gauge for more than just the forward and rear driver.

This gauge indicates the temperature of the lubricant in your vehicle’s axle(s). This temperature will vary with the kind of load you are carrying and the driving conditions you encounter. Maximum axle temperature may vary, depending upon the axle and type of lubricant. Very high temperatures signal a need to have your axle(s) lubrication checked. Depending on the vehicle configuration, there may be a drive axle temperature gauge for more than just the forward and rear driver.
Driving with very hot temperatures in your rear drive axles can cause serious damage to axle bearings and seals. Have your axle lubrication checked if you notice a sign of overheating.

The Suspension Load Air Pressure gauge indicates the amount of air pressure in the air suspension air bags. When the vehicle is equipped with dual leveling valves, the #1 gauge indicates the air pressure in the driver’s side air bags.

The Suspension Load Air Pressure gauge indicates the amount of air pressure in the air suspension air bags. When the vehicle is equipped with dual leveling valves, the #2 gauge indicates the air pressure in the passenger’s side air bags.

The Tractor Brake Application Air Pressure gauge indicates the amount of air pressure applied to the tractor brakes.

The Trailer Brake Application Air Pressure gauge indicates the amount of air pressure applied to the trailer brakes during brake foot valve and/or hand brake control valve applications.

The Trailer Air Tank Air Pressure gauge indicates the amount of air pressure in the trailer brake air tank.

The Transfer Case Oil Temperature gauge indicates the temperature of the oil in the transfer case. If the oil temperature exceeds maximum limits, a red warning light in the gauge will turn on. Do not exceed maximum oil temperature recommended by the manufacturer.

The Auxiliary Transmission Oil Temperature gauge indicates the temperature of the oil in the auxiliary transmission.
Watch this gauge to know when the transmission is overheating.

The Transmission Retarder Oil Temperature gauge indicates the temperature of the oil in the transmission retarder.
Watch this gauge to know when the transmission is overheating.

Illuminates when the high beams are on. This icon will flash with audible alarm if the headlamps are left on when the door is open. In addition, this icon will flash, but without an audible alarm, if there is a problem with the low beam headlights or the low beam headlight wiring. In such event, the high beam headlights will turn on at 50% normal brightness.