Ametek Instrument Panel

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The following information describes the various warning and indicator lamps found in the Ametek instrument panel. See Fig. for an example of the gauges and Fig. for an example of the warning and indicator lamps. See General Description for additional information and instructions regarding the Ametek instrument panel. Some instrument panel menus and sub-menus are not available on the electric vehicle.

  1. Battery Charge Gauge

  2. Speedometer

  3. Battery Temperature Gauge

  4. Primary Air Pressure Gauge

  5. Secondary Air Pressure Gauge

  6. Motor Temperature Gauge

  7. Driver Display Screen

  8. Toggle Button, Down

  9. Toggle Button, Right

Fig. 1, Ametek Instrument Panel, Electric Vehicle (gauges)

  1. Maintenance Warning Lamp

  2. Left-Turn Indicator

  3. Charger Connected Indicator

  4. Motor Warning Lamp

  5. Motor Failure Indicator

  6. Performance Derate Indicator

  7. Motion Enabled Indicator

  8. Battery Warning Lamp

  9. ABS Warning

  10. Tire Pressure Monitoring System Indicator

  11. High Voltage Interlock Loop Indicator

  12. Right-Turn Indicator

  13. Battery Failure Lamp

  14. Low Air Brake Pressure Warning

  15. Traction Control Indicator

  16. Fasten Seat Belt Warning

  17. Headlight High-Beam Indicator

  18. Parking Brake On Warning

  19. Low State of Charge Indicator

  20. Cruise Control Indicator

Fig. 2,  Ametek Instrument Panel, Electric Vehicle (warning lamps)

The instrument cluster has an emergency buzzer that sounds when serious conditions that require immediate attention occur.

A description of the standard warning and indicator lamps are listed below alphabetically.

ABS Warning

The ABS indicator illuminates when there is a malfunction in the vehicle antilock brake system (ABS).

Note:  For more information about this lamp and the ABS system, see Dual Air Brake System.

Battery Failure Lamp

The battery failure lamp illuminates when the battery pack and/or the charging/discharging management system has a failure and needs immediate attention. Vehicle motor derate will occur.

Battery Warning Lamp

The battery warning lamp notifies the driver that there is an issue with diagnostics.

Charger Connected Indicator

The charger connected indicator notifies the driver that the vehicle batteries are being charged.

Cruise Control Indicator

The cruise control indicator illuminates when the cruise control is activated.

Emergency Buzzer

The emergency buzzer sounds during the ignition sequence and whenever one of the following conditions exists:

  • The air pressure falls below the preset level, which is 65 psi (448 kPa).

  • The parking brake is set with the vehicle moving at a speed greater than 2 mph (3 km/h).

Fasten Seat Belt Warning

The fasten seat belt warning indicator (seat belt icon) illuminates for 3 seconds after the ignition switch is turned on.

When the motor is operating, if the driver's seat belt is unfastened and the park brake is not set, the seat belt warning indicator illuminates and a warning chime activates. The warning chime will remain active for 10 seconds. The warning indicator remains illuminated until the driver's seat belt is fastened.

Headlight High-Beam Indicator

The high-beam indicator (sideways beam icon) illuminates when the headlight high beams are on.

High Voltage Interlock Loop Indicator

The high voltage interlock loop indicator illuminates when an open circuit (when a high voltage cable is disconnected from its component, or a high voltage component enclosure is open) is detected on the high voltage interlock loop. Take the vehicle to an authorized Freightliner dealer for service.

Left-Turn Indicator

The left-turn indicator flashes on and off when the left-turn signal lights are flashing.

Both turn signal indicators flash when the hazard warning flasher is turned on.

Low Air Brake Pressure Warning

The low air brake pressure warning indicator and emergency buzzer activate when the motor is turned on if air pressure in the primary or secondary air reservoir is below 65 to 75 psi (448 to 517 kPa), and remain on until air pressure rises above that level in both reservoirs.

Low Coolant Warning

Notice: The electric vehicle does not have a low coolant warning indicator. If the coolant level becomes low, a Check Primary Coolant Level or Check Secondary Coolant Level message appears in the instrument panel driver display screen. To avoid damaging vehicle components, the driver should immediately find a safe place to park the vehicle and call for assistance.

Low State of Charge Indicator

The low state of charge indicator notifies the driver that the vehicle batteries need to be charged.

Maintenance Warning Lamp

When the maintenance warning lamp illuminates, the message display center will alert the driver as follows:

  • Air Filter Reminder—the air filter requires checking or replacement.

Motion Enabled Indicator

The motion enabled indicator blinks when the vehicle is started. When the vehicle is ready to drive, the indicator stops blinking and remains solid.

Motor Failure Indicator

The motor failure indicator notifies the driver when the motor and/or powertrain management system has failed and needs immediate attention. Vehicle motor derate will occur. Take the vehicle to an authorized Freightliner dealer immediately for service.

Motor Warning Lamp

The motor warning lamp notifies the driver that there is an issue with diagnostics. The vehicle will need service soon.

Parking Brake On Warning

The parking brake on indicator activates when the parking brake is engaged.

If the vehicle is moving at a speed of 2 mph (3 km/h) or more, the emergency buzzer will sound until the parking brake is released.

Performance Derate Indicator

The performance derate indicator notifies the driver of a regenerative braking derate or a powertrain motor derate. If the indicator activates, the driver should safely pull off to the side of the road and have the vehicle serviced as soon as possible.

Right-Turn Indicator

The right-turn indicator flashes on and off when the right-turn signal lights are flashing.

Both turn signal indicators flash when the hazard warning flasher is turned on.

Tire Pressure Monitoring System Indicator

The tire pressure monitoring system indicator illuminates when the system detects an issue with one or more tires such as under or over pressure or over temperature. A warning message also appears in the driver display screen.

Traction Control Indicator

The traction control indicator illuminates when the wheels lose traction.

Note:
Document Number: 0000107436
Manual Publication Date: 2024-05-07
Topic Publication Date: 2024-07-29