These cars come with a transaxle fluid life indicator light or message on the instrument panel which illuminates when the fluid needs a change, depending on a number of factors that deem the fluid tired or worn out, this, in most cases is longer than the usual 30,000-mile interval, although frequent changes of the fluids are advised as insurance to the transaxle. If, therefore, the decision is made not to change the fluid at least every 30,000 miles and instead use the fluid life indicator, then ensure that the fluid and filter have been changed before the car hits 100,000 miles, irrespective of what the indicator says. Do not do this on the run, but you can do this if all the parts of your car are cold, including the transaxle: drain and refill it with the same type of fluid at the recommended intervals. Before starting the procedure, acquire the exact type of transaxle fluid and a new filter, other materials that may include, jack stands, drain pan, newspapers, and clean rags. Jack up and securely block the vehicle, and then go ahead and pull the front and side transaxle pan mounting bolts, and turn the rear pan bolts a little. Lever the transaxle pan off very gently to let the fluid drain while remove the rest of the bolts, the pan and gasket and ensure that the gasket surface of the transaxle is clean. Remove the pan underneath the transaxle, siphon out the fluid and wash with fresh solvent, make sure you do not misplace the magnet. Take out the filter, looking for a rubber o-ring on the filter tube and pulling out the latter, if present. Remove the used full filter, clean and replace the transaxle case drain plug, and install a new filter seal, and a new filter. Make sure that gasket surface on the transaxle pan is clean, place the magnet and new gasket in place and fix the pan using the bolts; tighten them in an increasing order up to the recommended torque. Lower the vehicle and add the specified type and amount of automatic transmission fluid, then run the engine at 'fast idle' with the shift lever in Park and parking brake applied. Selector lever through each gear and back to Park, inspecting the fluid level and adding if necessary at the first few driving cycles, check for leaks beneath the car.
Posted by GMPartsGiant Specialist