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Service bulletins for the 2021 Cadillac CT5

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.

800 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
16-NA-1192024-06-07. Service bulletin. UNKNOWN OR OTHER. This warranty administration bulletin provides policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.
08-07-30-035H2024-06-07. Service bulletin. POWER TRAIN. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
N2424411202024-06-05. Warranty extension. ENGINE. Special Coverage. Certain vehicles, equipped with a 2.0 gasoline engine (RPO LSY), may have a condition that could cause the evaporative emissions purge pump to fail. If this condition were to occur, the Malfunction Indicator Lamp (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 June 5, 2024, 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 June 5, 2024, 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 evaporative emissions purge pump as necessary. The repairs will be made at no charge to the customer.
22-NA-0702024-05-31. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.
18-NA-0672024-05-31. Service bulletin. WHEELS. This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.
09-00-89-008G2024-05-31. Service bulletin. UNKNOWN OR OTHER. This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process.
23-NA-1542024-05-31. Service bulletin. UNKNOWN OR OTHER. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).
22-NA-2442024-05-30. Warranty extension. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; STRUCTURE:BODY; UNKNOWN OR OTHER; SERVICE BRAKES. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
22-NA-1062024-05-30. Service bulletin. WHEELS. This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE) Tires and PDI installed Limited Production Option (LPO) Tires.
23-NA-0642024-05-16. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
21-NA-0432024-05-16. Service bulletin. UNKNOWN OR OTHER. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
13-08-116-001J2024-05-16. Service bulletin. ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
10-08-110-001K2024-05-16. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information on proper use of floor mats.
06-00-89-029V2024-05-16. Service bulletin. SEATS; UNKNOWN OR OTHER. This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
23-NA-1252024-05-16. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Over The Air (OTA) and In Market Enhancement (IME) FAQs.
18-NA-2792024-05-15. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
15-00-89-004G2024-05-15. Service bulletin. ENGINE; SUSPENSION; POWER TRAIN. This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
23-NA-0642024-05-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
00-03-10-006P2024-05-01. Service bulletin. WHEELS. This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
20-NA-1322024-04-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
17-NA-0522024-04-23. Service bulletin. WHEELS; EQUIPMENT. This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.
PIT5832L2024-04-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
PIP5863B2024-04-15. Service bulletin. EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. This Preliminary information communicates to dealers? information related to a Malfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting. Advises the technician to perform Electric Engine Coolant Pump connection inspections. To clear the code to see if it resets current. If the code resets it advises to utilize Strategy Based Diagnosis. If the code does not reset, it advises to release the vehicle to the customer and that GM is aware of this issue.
PIP5596A2024-04-15. Service bulletin. SERVICE BRAKES; FUEL SYSTEM, GASOLINE. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
21-NA-2812024-04-05. Service bulletin. POWER TRAIN. This service bulletin provides diagnostic information for technicians in cases of an ETRS system fault or a no start condition - If the vehicle needs to be moved, it is recommended to use wheel dollies, tire skates or the NEW Manual Park Release tool DT-52910.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.