To check your vehicle's transmission fluid, follow these general steps:
- Warm up the engine : Start your car and let it run for about 5 to 10 minutes until it reaches normal operating temperature. Transmission fluid expands when warm, so checking it at this temperature gives a more accurate reading
- Park on a level surface : Ensure the car is on flat ground and engage the parking brake to prevent movement
- Locate the transmission fluid dipstick : Open the hood and find the dipstick, usually marked with a bright handle (often yellow or red) and labeled "ATF" or similar. Consult your owner’s manual if unsure
- Remove and clean the dipstick : Pull out the dipstick and wipe it clean with a rag or paper towel to remove old fluid and debris
- Check the fluid level : Reinsert the dipstick fully, then pull it out again to observe the fluid level. The dipstick will have markings indicating the proper fluid range for warm or cold conditions. The fluid level should be within the "Full" or "Hot" marks when warm
- Assess fluid condition : Transmission fluid should be bright red and clear. If it appears dark, cloudy, or smells burnt, it may need to be changed
- Repeat for accuracy : Wipe and recheck the fluid level a couple of times to ensure consistent readings
If your vehicle does not have a transmission dipstick (common in modern sealed transmissions), you may need to check fluid levels via fill and inspection plugs on the transmission housing or have a professional service it
. Additional tips:
- Keep the engine running during the check if your owner's manual specifies this, usually with the gear in Park or Neutral and the parking brake engaged
- Use the correct type of transmission fluid if topping up, as specified in your vehicle’s manual
- Wear gloves and eye protection to handle transmission fluid safely
This procedure applies mainly to automatic transmissions; manual transmissions may have different checking methods or require professional service
. By regularly checking your transmission fluid, you help maintain smooth shifting and prolong the life of your transmission system
