2002 Pontiac Bonneville Owner's Manual - Page 317

Wait at least 30 minutes before checking the transaxle fluid level if you have been driving: Checking the Fluid Level Prepare your vehicle as follows: D D D D 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. D Park your vehicle on a level place. Keep the engine running. in PARK (P). D With the parking brake applied, place the shift lever D 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). 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's colder than 50_F (10_C), you may have to drive longer. D Let the engine run at idle for three to five minutes. 6-22