Wanted to see if anyone else has experienced a failure of the thermal mgmt module in a 22 Kona Limited. Aside from solid check engine light, the car was very slow to heat up. Purchased new Kona on Dec 4. Dec 7 light came on with 300 miles on the car. Took car to dealer on Dec 9. Dealer indicated a Dec 21 date of part replacement receipt, but still waiting for replacement thermal mgmt module. In talking to other Hyundai dealerships, there have been quite a few other 22 Kona's having similar failures. As a first-time Hyundai customer, very disappointed in mfg Q/A and scratching my head on what kind of post-production testing goes on to identify/avert this. Dealer has been a pain to deal with to as they're indicating serious lags in parts due to supply chain challenges.
Im assuming you have a hybrid or EV, so i dont know about your specific issue. However, there is indeed a global shortage on parts by all brands, even aftermarket. I work for an automotive wholesaler, and supplies are low with all of our venders, and now exterior plastic parts are skyrocketing due to the UV additive for those pieces are in short supply.