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4LHD/4LHDX Application Manual
Powertrain Control Solutions
REV 1.1
5. Inspect the color of the fluid on the dipstick.
6. If the fluid level is below the COLD check line, add only enough fluid as necessary to bring the level
into the COLD line. It does not take much fluid, generally less than one pint (0.5L).
Do not overfill.
7. If the fluid level is in the acceptable range, push the dipstick back in all the way, then flip the handle down to
lock the dipstick in place.
8. Perform a hot check at the first opportunity after the transmission reaches a normal operating temperature
between 82–93°C (180–200°F).
Hot Check Procedure
Use this procedure to check the transmission fluid level when the TFT is between 82–93°C (180–200°F). The hot check
procedure is the most accurate method to check the fluid level. The hot check should be performed at the first opportunity
in order to verify the cold check. The fluid level rises as fluid temperature increases, so it is important to ensure the
transmission temperature is within range.
1. Start the engine and locate the transmission dipstick at the rear of the engine compartment, on the
passenger side of the vehicle.
2. Flip the handle up, and then pull out the dipstick and wipe the dipstick end with a clean rag or paper towel.
3. Install the dipstick by pushing it back in the dipstick tube all the way, wait three seconds and then pull it
back out.
NOTE:
Always check the fluid level at least twice. Consistent readings are important to maintaining proper fluid level. If
inconsistent readings are noted, inspect the transmission vent assembly to ensure it is clean and unclogged.
4. Keep the dipstick tip pointing down and check both sides of the dipstick. Read the lower level. Repeat the
check procedure to verify the reading. Reference Figure 2.3.7-2.
NOTE:
Always check the fluid level at least twice. Consistent readings are important to maintaining proper fluid level. If
inconsistent readings are noted, inspect the transmission vent assembly to ensure it is clean and unclogged.
4. Keep the dipstick pointing down and check both sides of the dipstick, and read the lower level. Repeat the check
procedure to verify the reading.
Reference Figure 2.3.7-1.
Figure 2.3.7-2 Hot Level Check
Figure 2.3.7-1 Cold Fluid Check