# Service bulletin 22\-NA\-214

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10225711
- Published by NHTSA: 2022\-11\-03
- Manufacturer's number: 22\-NA\-214
- Manufacturer's date: 2022\-10\-25
- NHTSA component: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## NHTSA's summary

This service bulletin provides a procedure to repair a customer concern of Stop/Start System Inhibited / IBS / Battery Monitor with Module Malfunction Indicator Light \(MIL\) Illuminated \- DTC U152D, P15FF, P305D, P305E, U01B0 Set.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10225711-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10225711-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine

## Trouble codes named

P15FF, P305D, P305E, U01B0, U152D

## Vehicles listed

- 2022 BRIGHTDROP EV600
- 2021 to 2022 BUICK ENVISION
- 2020 to 2022 CADILLAC CT4
- 2020 to 2022 CADILLAC CT5
- 2021 to 2023 CADILLAC ESCALADE
- 2021 to 2023 CADILLAC ESCALADE ESV
- 2021 CADILLAC ESCALADE NA
- 2023 CADILLAC redundant LYRIQ
- 2023 CHEVROLET COLORADO
- 2020 to 2023 CHEVROLET CORVETTE
- 2022 to 2023 CHEVROLET SILVERADO 1500
- 2021 to 2023 CHEVROLET SUBURBAN
- 2021 to 2022 CHEVROLET SUBURBAN 1500
- 2021 to 2023 CHEVROLET TAHOE
- 2022 to 2023 GMC HUMMER EV PICKUP
- 2022 to 2023 GMC SIERRA 1500
- 2021 to 2023 GMC YUKON
- 2021 to 2022 GMC YUKON XL

## Recalls for the same vehicles and component

- [26V494000](/recalls/nhtsa/26V494000.md), 2026-07-30: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [2025225](/recalls/tc/2025225.md), 2025-04-24: Engine
- [25V274000](/recalls/nhtsa/25V274000.md), 2025-04-24: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
- [24V133000](/recalls/nhtsa/24V133000.md), 2024-02-22: ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
- [23V367000](/recalls/nhtsa/23V367000.md), 2023-05-25: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [22V771000](/recalls/nhtsa/22V771000.md), 2022-10-13: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [21V421000](/recalls/nhtsa/21V421000.md), 2021-06-10: AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; ELECTRICAL SYSTEM:SOFTWARE
- [20V790000](/recalls/nhtsa/20V790000.md), 2020-12-17: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [20V489000](/recalls/nhtsa/20V489000.md), 2020-08-18: ELECTRICAL SYSTEM:SOFTWARE; STRUCTURE:BODY:TRUNK LID
- [20V461000](/recalls/nhtsa/20V461000.md), 2020-08-06: ELECTRICAL SYSTEM:SOFTWARE; LATCHES/LOCKS/LINKAGES:TRUNK LID:LOCK

## Other bulletins for the same vehicles and component

- [N252514001](/bulletins/11037980.md), 2026-10-05, Service campaign: ELECTRICAL SYSTEM. Service Update. Certain vehicles listed above may enable the new King Crab Feature through OTA programming or programming at the dealer. Dealers will perform a comprehensive software update. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over\-the\-air \(OTA\) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
- [N262546590\-01](/bulletins/11035019.md), 2026-07-15, Service campaign: ENGINE. Certain vehicles listed above, may have a condition where coolant leaks from the radiator hose quick connect at the radiator inlet. This special coverage covers the condition described above for a period of 5 years or 60,000 miles \(100,000 km\), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after July 14, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to July 14, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage \(“Customers”\) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to remove the inlet hose and replace the seal. The repairs will be made at no charge to the customer.
- [N262552620](/bulletins/11032588.md), 2026-05-11, Service campaign: ENGINE. Certain vehicles may have a condition that could cause the cylinder 2 glow plug to fail. If this failure occurs, the Malfunction Indicator Light \(Check Engine Light\) will illuminate and a diagnostic trouble code will set. This special coverage covers the condition described above for a period of 15 years or 150,000 miles \(240,000 km\), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 11, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 11, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage \(“Customers”\) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the cylinder 2 glow plug as necessary. The repairs will be made at no charge to the customer.
- [N252515590](/bulletins/11027795.md), 2026-01-27, Service campaign: ELECTRICAL SYSTEM. Certain vehicles listed above, may have a condition in which the body\-to\-chassis ground strap may be corroded. Dealers will replace the ground strap.
- [N252494003\-02](/bulletins/11027714.md), 2026-01-21, Service campaign: ENGINE. Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 years or 150,000 miles \(240,000 km\), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 23, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 23, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage \(“Customers”\) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the engine. The repairs will be made at no charge to the customer.
- [PIE0815A](/bulletins/11026107.md), 2025-12-04, Service bulletin: ENGINE. This engineering information \(EI\) closure ends the need for gathering further information from technicians/field in regard to the Service Engine Soon \(SES\) Lamp illuminated on DIC, Suspect Non\-OE Catalytic Converters and/or Exhaust Systems w/DTCs P013F, P014A, P014B and/or P013E Set.
- [00\-06\-01\-026R](/bulletins/11026017.md), 2025-12-03, Service bulletin: ENGINE. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
- [25\-NA\-339](/bulletins/11025492.md), 2025-11-12, Service bulletin: ENGINE. Under Field Actions N252494000, N252494001, the service procedure includes performing a PICO test on vehicle engines within the identified suspect VIN population. If the engine passes the PICO test, the engine oil will be changed from 0W20 to Mobil 1 Supercar 0W40 dexosR. From that point forward, the engine must use 0W40 dexosR oil products for all future oil change services.
- [25\-NA\-044](/bulletins/11024498.md), 2025-10-27, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This service bulletin provides information for dealers/technicians on SPS2 Hybrid/EV Battery Data Retrieval for Service High Voltage DTCs.
- [24\-NA\-235](/bulletins/11024497.md), 2025-10-27, Service bulletin: ELECTRICAL SYSTEM; STEERING. This technical bulletin provides a procedure to correct the condition of Steering Column Rattle and Turn Signal Over Cancels.

JSON: [/v1/bulletins/10225711](/v1/bulletins/10225711)

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