NOTE
Some indicator lamps may not be on all models.
Check Engine Lamp
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The check engine lamp indicates the condition of the engine/engine management system.
The check engine lamp normally comes on when the ignition is first turned on and remains on for approximately 4 seconds. During this time, the engine management system runs a series of self-diagnostics.
If the engine lamp comes on at any other time, see a Harley-Davidson dealer.
Low Fuel Lamp
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The low fuel warning lamp indicates when the gasoline in the tank reaches the low fuel level (approximate). Refer to Specifications → Specifications → Capacities for the low fuel level. See Controls and Indicators → Odometer Functions for fuel range features.
Flashing: If the low fuel lamp flashes continuously or remains on after filling the fuel tank, see a Harley-Davidson dealer.
Battery Discharge Lamp
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The battery discharge lamp indicates overcharging or undercharging of the battery. Refer to Maintenance and Lubrication → Battery Maintenance.
Security Lamp
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The security lamp displays the status of the security system and electrical self-diagnostics for the motorcycle. Refer to SECURITY SYSTEM → Security System for security system operation.
Flashing: The security system is armed.
Solid (security system armed): The alarm has been activated.
Solid (security system disarmed): If lamp remains on, see a Harley-Davidson dealer.
Turn Signal Indicator Lamps
Flashing: A turn signal is activated. When the 4-way hazard flashers are operating, both turn indicators flash simultaneously.
Rapid flashing: A turn signal bulb is not operating. Exercise caution and use hand signals. Replace inoperative components at earliest opportunity.
Headlamp High Beam Lamp
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The headlamp high beam lamp is on when the high beam or flash to pass switch is activated.
Neutral Lamp
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The neutral lamp is on when the transmission is in neutral and reverse is not enabled. The neutral lamp turns off when the reverse lamp turns on.
Cruise Control Lamp
Off: Cruise control is not enabled.
Orange: Cruise control is enabled. Cruising speed is not set or has been disengaged.
Green: Cruising speed is set.
Auxiliary/Fog Lamp Indicator Lamp: FLHTCUTG DOMESTIC
The auxiliary/fog lamp indicator is on when the auxiliary/fog lamps are turned on.
Gear Indicator: FLHTCUTG
See Controls and Indicators → Instruments → Instruments: FLHTCUTG. On equipped models, the currently selected gear (1-6) is displayed in the odometer window. The gear indicator is calculated from the vehicle speed and engine speed. The gear indicator remains blank when the transmission is in neutral, the clutch lever is pulled in or the vehicle is not moving.
The gear indicator may be momentarily inaccurate depending on rider clutch use characteristics and clutch wear. This can occur if the clutch is allowed to slip either due to excessive wear, misadjusted clutch or if the operator rides the clutch.
Reverse Lamp
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The reverse lamp indicates that reverse is enabled. See Controls and Indicators → Reverse Operation for reverse operation.
Parking Brake Lamp
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The parking brake indicator lamp turns on when the parking brake is applied. See Controls and Indicators → Parking Brake for parking brake operation.
Engine Coolant Temperature Lamp: FLHTCUTG
NOTICE
If the engine coolant temperature indicator lamp remains lit, always check the coolant level. If the coolant level is normal and the lamp is still lit, stop the engine at once and do not ride further until the trouble is located and the necessary repairs are made. Failure to do so may result in engine damage. (00158a)
WARNINGDo not loosen or remove pressure cap when cooling system is hot. The cooling system is under pressure and hot coolant and steam can escape from pressure cap, which could cause severe burns. Allow motorcycle to cool before servicing the cooling system. (00091c)
On Twin-Cooled vehicles, the engine coolant temperature lamp is on when the coolant has exceeded threshold temperature.
Check and add coolant as necessary. See Maintenance and Lubrication → Cooling System: FLHTCUTG. For other possible coolant system issues, see Troubleshooting → Cooling System: Twin-Cooled Models.
If coolant level is sufficient and the lamp remains on, stop the engine immediately and see a Harley-Davidson dealer for service.
Oil Pressure Lamp
NOTICE
If the oil pressure indicator lamp remains lit, always check the oil supply first. If the oil supply is normal and the lamp is still lit, stop the engine at once and do not ride further until the trouble is located and the necessary repairs are made. Failure to do so may result in engine damage. (00157a)
See Controls and Indicators → Instruments → Instruments: FLHTCUTG and Controls and Indicators → Instruments → Instruments: FLRT. The oil pressure lamp turns on when the ignition is turned on. The lamp remains on until the engine is started.
If the lamp is on while the engine is running, sufficient oil is not circulating through the engine.
Check and add engine oil as necessary. See Maintenance and Lubrication → Engine Oil Level. For other possible causes, see Troubleshooting → Engine.
If the engine oil level is sufficient and the lamp remains on, stop the engine immediately and see a Harley-Davidson dealer for service.