Buick Lucerne 2007, Owner'S Manual

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How to Check Automatic Transaxle
Fluid (3.8L Engine)
Because this operation can be a little difficult, you
may choose to have this done at the dealership
service department.
If you do it yourself, be sure to follow all the
instructions here, or you could get a false reading
on the dipstick.
Notice: Too much or too little fluid can
damage the transaxle. Too much can mean that
some of the fluid could come out and fall on hot
engine or exhaust system parts, starting a fire.
Too little fluid could cause the transaxle to
overheat. Be sure to get an accurate reading if
you check the transaxle fluid.
Wait at least 30 minutes before checking the
transaxle fluid level if you have been driving:
•
When outside temperatures are above
90°F (32°C).
•
At high speed for quite a while.
•
In heavy traffic — especially in hot weather.
•
While pulling a trailer.
To get the right reading, the fluid should be at
normal operating temperature, which is
180°F to 200°F (82°C to 93°C).
Get the vehicle warmed up by driving about
15 miles (24 km) when outside temperatures are
above 50°F (10°C). If it is colder than 50°F (10°C),
you may have to drive longer.
Checking the Fluid Level
Prepare your vehicle as follows:
1. Park your vehicle on a level place. Keep the
engine running.
2. With the parking brake applied, place the shift
lever in PARK (P).
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 PARK (P).
4. Let the engine run at idle for three to
five minutes.
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