New 2022 Limited Check Engine Light w/ Failed Thermal Mgmt Module

5968 Views 26 Replies 11 Participants Last post by ckcraib, 18 d ago

mmccullo777

Discussion Starter · Dec 27, 2021

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.

1 - 20 of 27 Posts

1fastKona

· #2 · Dec 28, 2021

mmccullo777 said:
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.

mmccullo777

Discussion Starter · #3 · Dec 28, 2021

1fastKona said:
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.

Thanks for the response - my Limited is not a hybrid/EV but an AWD

1fastKona

· #4 · Dec 28, 2021

mmccullo777 said:
Thanks for the response - my Limited is not a hybrid/EV but an AWD

The gas models don't have an electric water pump, and only hybrids/EV's use thermal management module, to cool the inverters. And AWD doesn't matter in the case, as that just means All-Wheel-Drive.

insideevs.com

Hyundai Kona Electric Thermal Management System Explained

Despite the lack of a dedicated battery heater, the US version of the Kona does have the ability to scavenge heat from the electric motor and power electronics.

insideevs.com

electricrevs.com

Exclusive: details on Hyundai’s new battery thermal management design

Hyundai’s new 2019 Kona Electric, with its 64 kWh battery and an EPA-rated 258 miles of range, has gotten many positive initial reviews but until now we haven’t known much about some im…

electricrevs.com

electricrevs.com

Control for Electrical Coolant Valve in Engine Thermal Management Module

Hyundai-Kia Motor Company recently developed a multi-way, electrical coolant valve for engine thermal management module (TMM). The main purposes of the TMM are to boost fuel economy by accelerating engine warm-up and also to enhance engine thermal efficiency by actively controlling the operating tem

www.sae.org

mmccullo777

Discussion Starter · #5 · Dec 28, 2021

1fastKona said:
The gas models don't have an electric water pump, and only hybrids/EV's use thermal management module, to cool the inverters. And AWD doesn't matter in the case, as that just means All-Wheel-Drive.

Hyundai Kona Electric Thermal Management System Explained

Despite the lack of a dedicated battery heater, the US version of the Kona does have the ability to scavenge heat from the electric motor and power electronics.

insideevs.com

Exclusive: details on Hyundai’s new battery thermal management design

Hyundai’s new 2019 Kona Electric, with its 64 kWh battery and an EPA-rated 258 miles of range, has gotten many positive initial reviews but until now we haven’t known much about some im…

electricrevs.com

Control for Electrical Coolant Valve in Engine Thermal Management Module

Hyundai-Kia Motor Company recently developed a multi-way, electrical coolant valve for engine thermal management module (TMM). The main purposes of the TMM are to boost fuel economy by accelerating engine warm-up and also to enhance engine thermal efficiency by actively controlling the operating tem

www.sae.org

The Kona non-EV models like my Limited AWD do have thermal mgmt modules too - 2022 Hyundai Kona Thermostat. Engine. Coolant. Thermal - 256002M810 | Bel Air Hyundai, Bel Air MD

1fastKona

· #6 · Dec 29, 2021

mmccullo777 said:
The Kona non-EV models like my Limited AWD do have thermal mgmt modules too - 2022 Hyundai Kona Thermostat. Engine. Coolant. Thermal - 256002M810 | Bel Air Hyundai, Bel Air MD

Not sure how accurate that is, because the last year of the Gamma Engine is 2020. You have whats called the
Smartstream G1.6T (G4FP) engine.

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nbwine

· #7 · Dec 30, 2021

mmccullo777 said:
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.

seems these thermal mgmt module where developed by Audi to replace the aging thermostat in cars - What is a 'Thermal Management Module'? PH Explains

Clipse2D

· #8 · Jan 16, 2022

mmccullo777 said:
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.

Just came across your post. Was looking because I have a 2022 limited with 473 miles. My check engine just came on. I’m in PA for the holiday weekend. It’s 10° with a feels like of -3°. The car was taking forever to warm up, and as a I drive the thermostat showed the cars engine getting colder as I drove it. Jeeze my luck!!

mmccullo777

Discussion Starter · #9 · Jan 26, 2022

Clipse2D said:
Just came across your post. Was looking because I have a 2022 limited with 473 miles. My check engine just came on. I’m in PA for the holiday weekend. It’s 10° with a feels like of -3°. The car was taking forever to warm up, and as a I drive the thermostat showed the cars engine getting colder as I drove it. Jeeze my luck!!

Sounds like the same problem. The solid check engine light came on indicating the failed thermal mgmt module. It took Hyundai 4 weeks to get a replacement in. The symptom was slow heating on the car interior. Lots of frustration with Hyundai's car quality coming from their assembly line because of the near-immediate failure, compounded by the poor supply chain availability of the replacement part.

SickofSnow

· #10 · 12 mo ago

I am having the same issue with my 2022 Kona SEL. I got an alert on my screen and then the check engine light came on. I have been waiting 4 weeks for the replacement thermal management module. I was told that there are others ahead of me at my dealership, and one has been waiting since March! I have contacted other dealers in my area and have verified that they are on back order with no ETA. I don't like the idea of having a rejection sticker on my new car!!

Clipse2D

· #11 · 12 mo ago

I’m still waiting since January of this year. I think I’m just going to accept that this will never be fixed. What a drag.

SickofSnow

· #12 · 12 mo ago

Unfortunately, I live in a state that requires yearly emission inspections. I am now the proud recipient of a REJECTED sticker on my 2022 Kona.

SickofSnow

· #13 · 10 mo ago

Are there any updates on this issue? Has anyone received this thermal management module replacement as of yet?

Clipse2D

· #14 · 10 mo ago

As of August 1st I have not received my replacement. Crazy that the dealer ordered this part in January. Thank God the vehicle runs OK with this defective part, if not I would have been so screwed.

Reactions: 1

SickofSnow

· #15 · 8 mo ago

I was just notified that the Thermal Management Module for my Hyundai Kona has finally arrived!!

Clipse2D

· #16 · 8 mo ago

Great. It’s been almost a year for me, I’m actually bringing in my car next month for my 1st oil change and tire rotation. I’ll see if mines came in and if so hopefully they can swap out the faulty one at the same time.

Marteney

· #17 · 5 mo ago

I have a 2022 kona se with 15,000. It never had a check egine light but wouldn't hold heat. I took it in and they just replaced the thermostat.

GarthAT

· #18 · 2 mo ago

I have a 2022 kona se. The thermal mngt mod replaced at 10k and now a second time at 30k. Both times check engine light on and generated code p2181.Please weigh in if you have had TMM replaced, trying to understand how prevalent this issue is. thanks.

Dylan27

· #19 · 2 mo ago

Mine came on at 5000 miles same issue

Clipse2D

· #20 · 2 mo ago

It’s almost 15 months later (maybe more) and the dealer still hasn’t called. The car heats up normally so I’m guessing whatever it was, maybe it fixed itself or the code just reset.

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