Here's how to determine which system you have and how to activate it:
1. Check your owner's manual: This is the definitive source for your specific Durango. The manual will clearly outline the 4WD system and its activation procedure.
2. Look for transfer case selector: This is usually a lever or dial located on the center console floor or near the gear shifter.
* Part-time 4WD: This system will have a selector with positions like "2WD," "4HI" (4-wheel high), and "4LO" (4-wheel low). You'll generally only engage 4HI or 4LO on slippery surfaces (snow, ice, mud). Driving in 4HI or 4LO on dry pavement can damage the drivetrain.
* Full-time 4WD: This system might have a selector with fewer options, often just "Auto" or "4WD." The system automatically engages 4WD when needed. You may have some limited control to lock it into 4WD in more demanding conditions. You typically wouldn't have a "4LO" option in a full-time system.
General activation (for part-time systems):
* Bring the vehicle to a complete stop. Activating 4WD while moving can damage the drivetrain.
* Select the appropriate gear. For most part-time systems, you would shift to neutral or park before engaging 4WD.
* Engage 4HI or 4LO: Use the transfer case selector to shift into the desired position. Start with 4HI unless you're stuck or need extra low-speed torque.
Important Considerations:
* Driving in 4WD on dry pavement: Avoid using 4HI or 4LO on dry pavement. This can cause binding in the drivetrain and lead to damage.
* Low range (4LO): Use 4LO only for very low-speed, high-traction situations like rock crawling or being stuck in mud or snow. It significantly reduces speed.
* If you're unsure: Consult your owner's manual! Incorrect usage of the 4WD system can severely damage your vehicle.
Without knowing the specific details of your Durango's drivetrain, these are the most general instructions possible. Your owner's manual is crucial for correct operation.