how to resolve the check transmission light on my Honda CR-V Sixth Generation (2023-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to ensure safety while working on electrical components.

2. Fluid Change

• Sub-steps:
  1. Locate the transmission fluid drain plug and remove it using a socket set.
  2. Allow old fluid to completely drain into a catch pan.
  3. Replace the drain plug and torque it to the manufacturer's specifications (typically around 20-25 lb-ft).
  4. Remove the transmission fluid fill plug and use a funnel to add new fluid, ensuring it meets Honda specifications (typically Honda ATF-Z1 or DW-1).
  5. Start the engine and allow it to warm up; cycle through the gears to circulate the new fluid.
  6. Recheck the fluid level and add more if necessary.

3. Transmission Range Switch Inspection

• Sub-steps:
  1. Locate the transmission range switch on the transmission assembly.
  2. Disconnect the electrical connector and inspect for corrosion or damage.
  3. Use a multimeter to check continuity within the switch while moving the gear selector through all positions.
  4. If faulty, replace the transmission range switch with a new part.

4. Reset Transmission Control Module

• Sub-steps:
  1. Reconnect the battery terminals.
  2. Use an OBD-II scanner to clear any error codes.
  3. Perform a reset of the transmission control module (TCM) as per the manufacturer’s instructions, if applicable.