operators_manual

Every 15,000 mi / 24,000 km / Monthly
10
Electrical and Lights - Turn, Stop, Reverse Lights and Signals
• Visual check. (Refer to Daily Checks on page 35).
Electrical and Lights - Power Supply Harnesses (engine, Transmission, etc.)
• Check for worn or damaged insulation, corroded terminals, frayed wires, and oil or fluid leaks on the connectors or wiring. (Refer
to Electrical System on page 254 for maintenance instructions.)
Heating and Air Conditioning - Air Conditioner
• Operate the system. (Refer to Heater and Air Conditioner Maintenance on page 276 for maintenance instructions.)
Heating and Air Conditioning - Cabin Fresh Air Filter (ON HIGHWAY)
• Inspect and clean, replace if necessary. (Refer to How to Replace Air Conditioner Filter on page 278 for maintenance
instructions.)
Heating and Air Conditioning - Cabin Fresh Air Filter (OFF-HIGHWAY)
• Inspect and clean, replace if necessary. (Refer to How to Replace Air Conditioner Filter on page 278 for maintenance
instructions.)
Aftertreatment System - System
• Check for leaks and proper support. (Refer to Noise and Emission Control on page 279 for maintenance instructions.)
Every 25,000 mi / 40,000
km / 6 Months
10
Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of
those listed here.
MAINTENANCE - Every 25,000 mi / 40,000 km / 6 Months
208 Y53-6126-1A1 (01/21)
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