Checking the fluid level – GMC 2010 Sierra User Manual
Page 486

Checking the Fluid Level
Prepare the vehicle as follows:
1. Park the vehicle on a level place. Keep the engine
running.
2. With the parking brake applied, place the shift
lever in P (Park).
3. With your foot on the brake pedal, move the shift
lever through each gear range, pausing for about
three seconds in each range. Then, position the
shift lever in P (Park).
4. Let the engine run at idle for three minutes
or more.
Then, without shutting off the engine, follow these
steps:
1. Locate the
transmission dipstick
handle with this
graphic which is
located at the
rear of the engine
compartment, on the
passenger side of the
vehicle.
See Engine Compartment Overview on page 6‑16
for more information on location.
2. Flip the handle up and then pull out the dipstick
and wipe it with a clean rag or paper towel.
3. Push it back in all the way, wait three seconds and
then pull it back out again.
6-26