Key for 1992 Plymouth Acclaim

Hi...

How about the trunk lock failed, and was replaced by another from perhaps a junkyard ? Or even the whole trunk lid was replaced?

Why not ask her to visit a locksmith; see if he can't redo the tumblers in the trunk lock to match the ignition key?

Or - the easy way. Pretend it's a GM and carry two keys :)

Ken

I suspect you are correct as this started about 5 years ago. She's had the car since 1992.

Sounds like a plan.

Right. I have one of those. Works okay for me.

*Valet* keys were available for those cars. They fit the doors and ignition, but not the truck or the glove compartment. My dealer accidently made a set for me, when I wanted the regular one. The keys were clearly marked *valet.*

I would suggest taking it to a qualified locksmith, who should be able to make a *regular* set.

If you look at the key and it is the same cut as the other one that works the trunk but a different size it is because its a valet key. But the fact is.. since you have another key that opens only the trunk and not the doors or ignition switch I would guess the trunk lock had been replaced with a different coded key.

Glenn Beasley Chrysler Tech

That is possible. Another possibility is that the trunk lock was replaced at some time in the past, and no longer matches the rest of the locks on the vehicle.

Probably not, but one possibility is to have the door/ignition grind cut on one side of the two-sided key blank, and the trunk grind cut on the other side. Then, use some paint to paint half of the key head and just memorise whether the painted side needs to be up or down to open the trunk.

The key has to be cut on a y154. It is a common mistake. All the keys go on, but only one will work. Y154 works 88-92...Y155 works on 93 only...157 works on 96 and up.

The key has to be cut on a y154. It is a common mistake. All the keys go on, but only one will work. Y154 works 88-92...Y155 works on 93 only...157 works on 96 and up.

The key has to be cut on a y154. It is a common mistake. All the keys go on, but only one will work. Y154 works 88-92...Y155 works on 93 only...157 works on 96 and up. ========================= FASCINATING keys intrigue me so common and yet....... h

What happened was: 5 years ago she took the car into the dealer for regular service and the dealer lost the master key. She could not find the other master key so she had to use the valet key. The valet key would not work in the trunk. The dealer said he could not provide her with a new master key so he gave her a key that would work in the trunk. She says it will not work in the ignition. She said the dealer did not give her a new trunk lock.

I don't know why the dealer could not provide her with a new master key. I suspect that he did in fact put in a new trunk lock and gave her a key that would work in it. How else would you explain the fact that the key that works in the trunk lock does not work in the ignition from day one?

She wants me to call Chrysler, give them the VIN, and see if I can get a new master key. I don't know if Chrysler can provide a new master key but even if they could, I don't know if it would solve the problem in light of the possibility (probability) of 3. above.

The key that works in the ignition is cut on a Y157 blank but according to others in this thread it should have been cut in a Y154.

The key she has that works in the ignition only was cut on a Y157 blank which means 96 and up. If she had the key cut on a Y154, are you saying that it should work in ignition, doors and trunk PROVIDED the trunk lock wasn't changed?

Is it possible that a key could have been cut on a blank that works in the trunk only but not the ignition? If that is true and that is what happened, then having the key cut on a Y154 should work. Right?

Hi...

I'm not a mechanic, and almost brand new to Chrysler after a lifetime of GM's, but from what I've learned so far...

Wouldn't the ultimate test of whether it's the wrong blank, wrong key, or different trunk lock be easily determined by testing which of her keys would lock/unlock the glove compartment?

Take care.

Ken

The dealer could have very well cut her a new key without a problem. I could cut you a master key right now if I had your serial number. If the trunk key does not fit the ignition then one of the locks were changed. and more ten likely it was the trunk lock.

Glenn Beasley Chrysler Tech

The dealer did cut a new master key 5 years ago but apparently used a Y157 instead of a Y154. I learned further today that in addition to the Y157 that works in the ignition, the key that works in trunk but not in the ignition is a Y154. Perhaps when the dealer couldn't get the Y157 to work in the trunk, they changed the trunk lock and then made a key for the trunk on a Y154. Doesn't make a let of sense and pure speculation on my part.

I convinced her to take it to a locksmith and let them fix it because I suspect the locksmith will have to modify the trunk lock.