🔧 Canyon - Automatic Transmission Fluid and Filter Change

I’d service your Canyon with a pan drop, filter replacement, and DEXRON-VI refill. This changes the serviceable fluid without the risks of a pressurized flush. The transmission has no dipstick, so the final level must be checked through the level plug while the engine runs.

Assumption: These instructions apply to the factory six-speed automatic used with the 2.8L diesel. Verify the transmission identification before opening any plugs.

Difficulty Level: Advanced | Estimated Time: 3-4 hours

---

⚠️ Safety & Precautions

• ⚠️ Keep your Canyon perfectly level on four jack stands. A tilted truck produces an incorrect fluid level.
• ⚠️ Never work beneath a vehicle supported only by a floor jack.
• ⚠️ The final check requires a running engine and warm fluid. Keep clothing and tools clear of the exhaust and rotating parts.
• ⚠️ Automatic transmission fluid can cause serious burns. Wear gloves and safety glasses.
• ⚠️ Remove the fill plug before draining anything. If the fill plug won’t open, stop while the transmission still contains fluid.
• ⚠️ Don’t substitute universal fluid or add transmission additives. Use licensed DEXRON-VI automatic transmission fluid.
• ⚠️ Don’t perform a machine flush on a transmission with unknown service history or existing shift problems.
• ⚠️ Battery disconnection isn’t required for this service.

---

🔧 Required Tools

You'll need the following tools for this repair:

• 3-ton floor jack
• 3-ton jack stands - Qty: 4
• Wheel chocks
• Metric socket set, 8mm-18mm
• Metric combination wrench set, 8mm-18mm
• 3/8-inch drive ratchet
• 3/8-inch drive extension set
• 3/8-inch drive torque wrench, 10-80 ft-lbs
• 1/4-inch drive inch-pound torque wrench
• Plastic trim scraper
• Fluid transfer pump with flexible hose
• OBD-II scan tool with transmission temperature display (specialty)
• 10-quart drain pan
• Graduated fluid measuring container
• Digital level
• Brake-cleaner spray nozzle
• Shop towels
• Nitrile gloves
• Safety glasses

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• VAICO automatic transmission fluid kit - Qty: 1
• DEXRON-VI automatic transmission fluid - Qty: approximately 6-8 quarts for service
• Automatic transmission filter - Qty: 1
• Transmission pan gasket - Qty: 1
• Transmission filter seal - Qty: 1
• Transmission drain-plug seal - Qty: 1 if equipped
• Transmission-safe brake cleaner - Qty: 2 cans

The kit shown in the parts list packages the fluid, filter, and pan gasket together. Confirm its six-speed transmission qualifier before ordering.

---

📋 Before You Begin

• 📋 Drive your Canyon for about 10 minutes, then park it on a firm, level surface.
• 📋 Apply the parking brake, place the selector in Park, and chock the wheels.
• 📋 Raise all four corners with the 3-ton floor jack and support them with four 3-ton jack stands.
• 📋 Use the digital level on the frame to make sure the truck is level front-to-rear and side-to-side.
• 📋 Connect the OBD-II scan tool and locate the transmission-fluid-temperature reading. This tool reads temperature data reported by the vehicle.
• 📋 Clean around every transmission plug before removal. Dirt inside an automatic transmission gets expensive quickly.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Identify the transmission plugs

• Use safety glasses and a flashlight to locate the transmission pan, fill plug, and level-check plug.
• Don’t confuse a transmission plug with a transfer-case or engine-oil plug.
• Clean the fill-plug area with brake cleaner and shop towels.

Step 2: Loosen the fill plug first

• Use the correctly fitting metric socket and 3/8-inch ratchet to loosen the upper fill plug.
• Leave the plug loosely installed until you’re ready to refill.
• Stop if the plug is damaged, seized, or cannot be positively identified.
• Never drain what you can’t refill.

Step 3: Drain the old fluid

• Position the 10-quart drain pan beneath the transmission pan.
• If the pan has a drain plug, use the correctly fitting metric socket to remove it slowly.
• If there’s no drain plug, use the metric socket set to loosen the pan bolts gradually, starting at one corner.
• Leave several bolts loosely installed on the opposite side. Carefully lower one edge so the fluid drains in a controlled stream.
• Measure the removed fluid with the graduated container and record the amount.

Step 4: Remove the transmission pan

• Support the pan with one hand and use the metric socket and extension to remove the remaining bolts.
• Lower the pan carefully because it will still contain fluid.
• Check the fluid for a strong burnt smell or visible metal pieces. Fine gray paste on the magnet is normal wear; flakes or chunks are not.

Step 5: Remove the old filter

• Place the drain pan beneath the filter.
• Pull the filter straight down by hand while gently rocking it.
• Remove the old filter-neck seal from the transmission bore using a plastic trim scraper if it stayed behind.
• Don’t scratch the aluminum sealing bore.

Step 6: Clean the pan and magnet

• Use brake cleaner, shop towels, and the plastic trim scraper to clean the pan and gasket surface.
• Remove the magnet, clean away the gray paste, and reinstall it in its original position.
• Don’t use powered abrasive discs or metal scrapers on the aluminum sealing surfaces.
• Allow the pan to dry completely before installation.

Step 7: Install the new filter

• Lightly wet the new filter seal with fresh DEXRON-VI fluid.
• Install the seal squarely into the transmission bore by hand.
• Push the new filter straight upward until fully seated.
• Verify that the filter is secure and level.

Step 8: Reinstall the transmission pan

• Place the new gasket on the clean pan. Don’t apply silicone unless the gasket manufacturer specifically requires it.
• Hold the pan against the transmission and start every bolt by hand.
• Use the metric socket and inch-pound torque wrench to tighten the bolts gradually in a crisscross pattern.
• Torque the pan bolts to 9 Nm (80 in-lbs) unless the installed gasket kit specifies a different value.
• Install the drain plug with its new seal if equipped. Use the torque value supplied for the exact plug and pan rather than guessing.

Step 9: Add the initial fluid

• Remove the fill plug using the correctly fitting metric socket.
• Use the fluid transfer pump to add DEXRON-VI fluid.
• Start with approximately one quart less than the amount measured during draining.
• Install the fill plug finger-tight to prevent fluid loss during the initial circulation.

Step 10: Circulate the new fluid

• Confirm that your Canyon remains firmly supported and level.
• Start the engine and keep your foot firmly on the brake pedal.
• Move the selector slowly through Reverse, Neutral, Drive, and the lower ranges, pausing about three seconds in each position.
• Return the selector to Park and leave the engine idling.
• Inspect the pan, gasket, and plugs for leakage.

Step 11: Set the final fluid level

• Use the OBD-II scan tool to monitor transmission-fluid temperature.
• Keep the engine idling, your Canyon level, and the selector in Park.
• Perform the level check with the fluid within the specified service temperature range, generally about 30-50°C (86-122°F).
• Place the drain pan beneath the level plug and remove the plug using the correctly fitting metric socket.
• If no fluid emerges, use the transfer pump to add DEXRON-VI through the fill opening until fluid begins to leave the level opening.
• Allow the flow to reduce to a thin stream or steady drip.
• Reinstall the level plug and tighten it to the transmission’s plug specification.
• Reinstall and tighten the fill plug to the transmission’s plug specification.
• Don’t set the level with the engine off. Fluid drains back internally and creates a false overfilled reading.

Step 12: Clean and lower the vehicle

• Turn off the engine and clean all residual fluid with brake cleaner and shop towels.
• Use the floor jack to lift your Canyon from the stands.
• Remove all four jack stands and lower the vehicle carefully.
• Remove the wheel chocks after the vehicle is fully on the ground.

---

✅ After Repair

• ✅ Road-test your Canyon for 10-15 minutes using light throttle.
• ✅ Confirm that Reverse and Drive engage normally and that shifts feel consistent.
• ✅ Park on clean pavement and inspect the pan and plugs for leaks.
• ✅ Recheck the fluid level at the correct temperature if shifting changes, fluid leaked, or the amount added differed substantially from the amount removed.
• ✅ Dispose of the used fluid at an approved recycling facility. Never pour it onto the ground or into a drain.
• ✅ If the pan contains metal flakes, the fluid smells badly burnt, or the transmission slips, stop driving and have the transmission diagnosed.

---

💰 DIY vs Shop Cost

Shop Cost: $350-$650 equivalent, depending on local parts and labor pricing

DIY Cost: $180-$350 equivalent for fluid, filter, gasket, and supplies

You Save: Approximately $150-$300 by doing it yourself!

Labor rates vary by region. This service normally takes a shop approximately 1.5-2.5 hours.

---

🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.