Mercury Mystique key fob battery
1 of the 5 model years listed for the Mercury Mystique have a proven battery. The most common answer is 2 x CR2016. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 1996Remote (separate)
Not confirmed yet
- 1997Remote (separate)
2 x CR2016
FCC ID GQ43VT4TOwner's manual: manualowl.com and uhs-hardware.com (checked Nov 1, 2026)
Manual text: “two coin type three-volt lithium 2016 batteries”
Find CR2016 on Amazon - 1998-2000Remote (separate)
Not confirmed yet
Changing the battery
Separate remote fob
- A separate fob has no key blade inside, so it opens with nothing but a coin or a small screwdriver.
- Look for a screw on the back or a notch on the edge. Remove the screw if present, then twist a coin in the notch to split the case.
- Swap the cell or cells, keeping the same side up as the old ones.
- Reassemble and test from a short distance.
This key takes two CR2016 cells. Change both at the same time and stack them the way the old pair sat; mixing a fresh cell with a tired one shortens the life of the new one.
Keep spare coin cells away from small children. A swallowed coin cell can burn the throat within hours; if it happens, go to an emergency room at once.