The Toyota Hilux Revo GUN125 with the 2GD-FTV engine and automatic transmission is a popular variant of the Hilux lineup, especially in markets across Asia and the Middle East. Here’s a detailed description of its automatic gearbox usage and functionality:

Toyota Hilux Revo GUN125 – 2GD-FTV with Automatic Gearbox

Engine & Transmission Overview

• Engine: 2GD-FTV
  
• 2.4L, 4-cylinder, turbo-diesel
• Produces around 148–150 hp and 400 Nm torque (varies slightly by market/tune)
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• Transmission: 6-speed automatic (Aisin-built)
  
• Electronically controlled automatic with sequential shift logic
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Gearbox Usage Description

Shift Lever Positions

1. P (Park) – Use when starting the engine or parking. Locks the transmission.
2. R (Reverse) – For backing up. Always come to a complete stop before shifting to/from R.
3. N (Neutral) – Disconnects engine power from the wheels. Used for idling or towing.
4. D (Drive) – Normal driving mode. The gearbox automatically selects the appropriate gear based on speed, throttle input, and load.
5. S or Manual Mode (M) – Enables sequential manual shifting:
   
• Shift up/down using the gear lever or paddle (if equipped).
• Useful for engine braking, off-road control, or overtaking.
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Drive Mode Features

• ECO Mode – Optimizes fuel efficiency by adjusting throttle response and shifting earlier.
• PWR Mode (Power Mode) – Increases throttle response and holds gears longer for better performance.
• Manual Override – In S or M mode, the transmission allows the driver to select gears manually, but may override to protect the engine or transmission.

Automatic Gearbox Tips

• Always fully press the brake pedal before shifting from P or N to D or R.
• Avoid excessive manual gear holding in high RPMs; the system will auto-upshift to prevent damage.
• For steep descents, use manual mode to hold lower gears for engine braking.
• During towing or off-road use, manual gear selection helps maintain control and power delivery.

Let me know if you want a diagram or explanation of maintenance tips, common issues, or off-road gearbox behavior.