The transmission fluid dipstick for a 1989 Buick LeSabre is located
on the passenger side of the engine compartment. It's usually a long, slender dipstick with markings for the "Add" and "Full" levels. It might be close to other dipsticks (like the engine oil dipstick), but it will have markings indicating it's the transmission dipstick. If you have trouble finding it, consult your owner's manual for a diagram.
Important Note: The location of the dipstick *may* vary slightly depending on whether your LeSabre has a 3.8L V6 or a different engine. Checking your owner's manual is strongly advised for definitive placement. If you can't find your manual, a quick online search for "1989 Buick LeSabre transmission fluid dipstick location" with your engine size may yield helpful images or videos.
