2020 Toyota Highlander Transmission in Murray, UT

Delayed engagement, hard or slipping shifts, shudder, or dark/burnt-smelling fluid are common signs that service is due.

These symptoms point to fluid condition, level, or an underlying mechanical or electronic issue. Symptoms are not a diagnosis, but they are a reason to inspect the vehicle, scan for codes, and check fluid condition and level using the factory method.

• Noticeable delay shifting from Park to Drive or Reverse
• Harsh, slipping, or flare during upshifts
• Leaking fluid or warning lights with stored transmission codes

Identification of the transmission, fluid condition/level check, code scan, and factory-method refill; pan/filter service where the design allows.

The technician confirms the transmission variant from the vehicle, uses the fluid the manufacturer specifies, and follows the temperature-based level procedure as required. If the unit has a pan and serviceable filter, those are removed, cleaned/replaced, and reassembled with proper sealing before refilling and road testing.

• Confirm fitted transmission and correct fluid
• Inspect fluid, leaks, and scan for fault codes
• Fill to spec and road test to verify shift quality

The manufacturer publishes the schedule for this vehicle; most list normal and severe intervals, and fluid condition can be inspected between them.

Towing, heat, mountain grades, and stop-and-go driving place a vehicle on the severe schedule. If usage varies, periodic inspections help decide timing based on actual fluid condition rather than mileage alone.

• Follow the manufacturer’s maintenance schedule for this model
• Severe service includes towing, steep grades, heat, and traffic
• Use inspections to adjust timing between published intervals

The manufacturer specifies a fluid for the exact transmission installed, and it is not interchangeable with universal fluids.

Using the wrong fluid can affect clutch friction and hydraulic pressure, leading to shift issues or damage. The correct fluid is identified from the vehicle’s transmission information—not just the model name—to ensure compatibility.

• Identify the transmission from the specific vehicle
• Use the fluid the manufacturer specifies for that unit
• Avoid “one-size-fits-all” fluids that may not meet requirements

Condition and service history decide: a drain-and-fill replaces pan volume; an exchange addresses more of the total system after inspection.

There is no one answer for every vehicle. The shop inspects fluid condition, checks for codes, and considers prior maintenance before recommending a method that manages risk and supports shift quality.

• Drain-and-fill: lower risk, partial replacement
• Exchange: broader replacement when condition supports it
• Decision follows inspection and vehicle history

Driving on a slipping transmission can turn a service visit into a repair; book a diagnosis as soon as symptoms appear.

Slipping, flare, and harsh shifts can stem from low or degraded fluid, pressure loss, or mechanical wear. Continued driving may overheat the unit and accelerate clutch damage. An inspection and code scan determine the next step.

• Limit driving if engagement or shifts worsen
• Document symptoms and when they occur
• Schedule diagnosis promptly to prevent further damage

Some units lack a dipstick and published routine interval; inspection and a fluid condition check guide service on those designs.

Whether this vehicle’s transmission is one of those designs is confirmed from the vehicle itself. Even without a dipstick, fluid level and condition can be checked using the factory service port and temperature-based procedure.

• Confirm transmission design from the vehicle
• Use the manufacturer’s inspection method
• Service is based on condition, not a universal interval

Independent shops can be cost-effective; the dealer stocks the specified fluid and follows the factory procedure for this transmission.

Choose based on what the job requires. Larry H. Miller Toyota Murray provides the manufacturer-identified fluid, temperature-based fill and verification, and a road test; many independents offer solid value on labor.

• Confirm that the correct fluid and procedure are used
• Ask for a code scan and condition report with the service
• Compare availability, convenience, and included checks

Larry H. Miller Toyota Murray in Murray serves the Greater Salt Lake City area with factory-authorized transmission care.

Schedule online and review service specials before you visit. For questions, call the service department directly.

• Schedule service or schedule appointment online
• Check current service specials before booking
• Call {{rooftop.phone_digits}} for assistance