2014 Chevrolet Express 3500 Cargo Owner Manual - Page 265

Vehicle Care Then, without shutting off the engine, use the steps that follow. 1. Flip the handle up, pull out the dipstick, and wipe it with a clean rag or paper towel. 2. Push it back in all the way, wait three seconds, and pull it back out again. 3. Check both sides of the dipstick, and read the lower level. The fluid level must be in the COLD (1) range for a cold check, transmission temperature 27°C to 32°C (80°F to 90°F); between the COLD (1) and HOT (3) range for a WARM (2) check, 50°C to 60°C (122°F to 140°F); or in the HOT (3) cross-hatched range for a hot check, 71°C to 93°C (160°F to 200°F). Be sure to keep the dipstick pointed down to get an accurate reading. 4. 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. 10-15 How to Add Automatic Transmission Fluid Refer to Recommended Fluids and Lubricants on page 11-12 to determine what kind of transmission fluid to use. The transmission dipstick is near the center of the engine compartment and will be labeled with the graphic shown. See Engine Compartment Overview on page 10-6 for more information on location. 1. WARM Range 2. HOT Range Using a funnel, add fluid down the transmission dipstick tube only after checking the transmission fluid while it is warm or hot. A cold check is used only as a reference. If the fluid level is low, add only enough of the proper fluid to bring the level up to the middle of the WARM (1) or HOT (2) range depending on the ambient temperature and prior driving conditions. Refer to "How to Check Automatic Transmission 1. COLD Range 2. WARM Range 3. HOT Range