Experts please chime in, defective part or not?

The chime system is a class 2 databus. The chime is actually created by the factory radio and plays thru the left front speaker. If the radio is non factory and the appropriate kit was not used ( which has a speaker for the chine) or the front left speaker is blown then you won't have a chime. If you do have a factory radio and the speaker plays the music fine then the problem lies in either the data circuit or the radio. If you have an aftermarket radio and the correct wiring kit was used then either there is a bad connection, blown chime speaker or defective kit.

There is no chime module ,there is a speaker inside the instrument cluster.
Door Ajar Chime
The door ajar chime feature is controlled by the smart junction box (SJB). The driver and passenger door ajar switches, and the liftgate are hardwired to the SJB. If any door or liftgate is sensed as being open, and the ignition switch is in RUN/START position, the SJB will process the input and sends a chime request to the instrument cluster over the controller area network (CAN).
Safety Belt Warning Chime
The safety belt chime feature is controlled by the restraints control module (RCM). The driver safety belt switch is hardwired to the RCM. The RCM communicates with the instrument cluster over a hardwire connection. If at any time during the first 6 seconds after the ignition switch is placed in RUN the driver safety belt is sensed as being unfastened, the RCM will process the input, and in turn, sends a chime request to the instrument cluster.
Have the vehicle checked for DTC'S - diagnostic trouble codes ,not OBD 2 codes , the check engine light has nothing to do with this .
Instrument Cluster Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1342 Instrument Cluster is Defective Instrument Cluster INSTALL a new instrument cluster. REFER to Section 413-01 . B1352 Ignition Key-In Circuit Failure Instrument Cluster Go To Pinpoint Test B . B2477 Module Configuration Failure Instrument Cluster REFER to Section 413-01 .
For a complete list of instrument cluster DTCs, refer to Section 419-10 .


Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1342 SJB is Defective SJB INSTALL a new SJB. REFER to Section 419-10 . B1352 Ignition Key-In Circuit Failure SJB Go To Pinpoint Test B . B1577 Lamp Park Input Circuit Short to Battery SJB Go To Pinpoint Test E . C1167 Park Brake Actuator Assembly Switch Released Circuit Short to Ground SJB Go To Pinpoint Test F . Your best bet is to have a qualified repair shop diagnose this problem ,what ever it is .
Have the vehicle

They didn't get the timing correct. One tooth off will pop a code. Causes rough running. In my case the tensioner didn't put enough tension on the belt. I had to take it back apart and pry on the tensioner to get the pressure up, then lock it down.. Got rid of the codes(both sides).

My 1991 Grand Caravan did that too. It had the 3.3L engine just the the T&C (91-93). The tensioner was the problem, hit a puddle on the right side and you'd feel the power steering go and then right away the engine would start to heat up. I tried making the belt come off, but could never duplicate it, only splashing through puddles of rain or wet slush would do it. I never found a tensioner with shoulders on it, but a new one like the original fixed it.

A little more clarification would be nice, meaning, have you ever serviced the car other than oil changes? Bare minimum, do the timing belt, timing belt tensioner, the two timing belt idler pulleys, water pump, and spark plugs. VERY IMPORTANT NOTE: there are two designs for the water pump. Aftermarket water pumps will be a LOT cheaper, however, are the old design the majority of the time. Problem with the old design is the timing belt rides a bit on one edge of the pulley (not visibly noticeable) and you run the risk of the pulley on the water pump breaking after so many miles which will cause your timing to become out of synch, which results in internal engine damage (either a head job needing to be done or a new engine). A Suzuki dealer will have the undated design of the water pump, however, it is pricey ($302 plus tax).

With that being said, to tell if an aftermarket water pump is the correct design, look at the pulley and if the outer edge of the pulley is thinner than the inner edge, then you have the updated design. Usually aftermarket brands GMB and Gates will be correct.

If this helps, please indicate so! Thanks! :-)

Is this the warninng that you are not wearing your seat belt? The way to make it stop is to wear your seat belt.

check crank/cam sensors. could have been damaged when the tens.was broken.

yes you can get defective auto tenioners.Chage ASAP.

Cadillac recommends it be replaced at 100,000 miles.
You should also consider changing the tensioner (1) and idlers (2) at the same time. A kit is available from the dealer and various aftermarket sources that contains all the parts.
I hope this answers your question.