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Service bulletins for the 2016 Cadillac ELR

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.

1052 on file from NHTSA, as of 2026-10-19.

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By component

By trouble code

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
1308116001F2020-12-07. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. The intent of this technical 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.
PIP5632C2020-09-14. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
PIC5650H2020-08-10. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
PIT5698A2020-08-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.
20NA1322020-08-10. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
070849020Q2020-06-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
060089029T2020-06-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
060089029S2020-06-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
19NA2422020-06-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. This informational bulletin announces the availability of a High Voltage battery pack refurbish kit when the battery pack assembly needs to be replaced and information on how dealers can obtain the refurbish kit.
PIP5202C2020-06-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have Check Engine Light illuminated with an "Engine Unavailable" and "Reduced Propulsion" messages on the Driver Information Center. Technician may find Diagnostic Trouble Codes a P0AB9 and P0AC4. Technician should not clear any Diagnostic Trouble Codes and ensure Global Diagnostic System 2 is up to date. Technician will need to use Global Diagnostic System 2 and check all modules for Diagnostic Trouble Codes. Now use Global Diagnostic System 2 to create freeze frame data from Hybrid Powertrain Control Module and the Engine Control Module and save a report. Technician will need to verify that the vehicle had not been run very low or out of fuel. Also verify the customer did not press the Power Button causing the vehicle to turn off while driving. Verify that the Internal Combustion Engine runs properly and no other engine related or communication related Diagnostic Trouble Codes are present. Technician should inquire if the remote star was used on the last two drive cycles before the Diagnostic Trouble Code set. Technician should update the Engine Control Module if so. Technician should inspect the ground locations G106 (engine block) and G113 (drive unit case) have been cleaned and are secure making sure the ground eyelets do not spin. Technician should also check for past service history for prior mechanical engine or wiring harness repairs. Inspect the cam timing connector and repair any damage.
20NA0932020-05-26. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. This informational bulletin provides information on Normal Radio Display Operation ? Display Does Not Remain Off at Times After Being Turned Off in Settings and no parts should be replaced due to this condition.
18NA1802020-05-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
PIP4723D2020-02-10. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
PIT5074M2019-12-09. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel.
PI0798A2019-11-25. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This preliminary information bulletin provides a procedure to correct a condition of a Check Engine Light with DTC P0C4A that Sets immediately after a repair to the High Voltage battery cooling system that involves draining/refilling of coolant.
PIP5601A2019-11-12. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.
19NA0792019-10-28. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY. This technical bulletin provides repair information to correct a customer concern of a Propulsion Power is Reduced message displayed in the DIC and without DTCs set on higher mileage vehicles by reprogramming the HPCM 2.
N172130462 022019-10-21. Service bulletin. ELECTRICAL SYSTEM. N172130462 02 - Customer Satisfaction Program - Certain 2012 - 2015 model year Chevrolet Volt vehicles and 2014 ? 2016 model year Cadillac ELR vehicles equipped with a high voltage battery, may have a condition where it could gradually lose the ability to maintain voltage. If battery concerns are not addressed, over time the vehicle could enter a reduced propulsion mode while driving, or lose propulsion, or it may not start. Dealers are to update the Hybrid Powertrain Control Module 2 (HPCM2). This software update is intended to increase the amount of warning time provided.
PIP4670H2019-10-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
PIP5632B2019-10-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
PI0592E2019-09-23. Service bulletin. ELECTRICAL SYSTEM. This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes E4398, E4399, E4403, M4404, M4413, E4414, E4423, E4491 or E6961).
16NA0422019-09-23. Service bulletin. ELECTRICAL SYSTEM. This Technical Bulletin provides procedures to upgrade a vehicle with the Android Auto feature for 2016 and 2017 Model Year vehicles.
PIP5267A2019-09-16. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that may have a Check Engine Lamp or Service Vehicle Soon lamp on after charging. If the technician finds Diagnostic Trouble Codes P16C4 or P16C5 set in history, the Hybrid Powertrain Control Module will need to be reprogrammed. If the Diagnostic Trouble Codes are current or return and the Hybrid Powertrain Control Module and the Battery Charger Control Module have the current calibrations then processed to follow published Service Information diagnostics. This may lead to Battery Charger Control Module replacement.
PIP4905E2019-08-12. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a no charge condition when using either the stationary 240V or the 120V charger. Technician may find Diagnostic Trouble Code P0D26 set in the Hybrid Powertrain Control Module 2. Technician will need to check the last 8 digits of the (VIN) Vehicle Identification Number. If the Vehicle Identification Number number is less than Vehicle Identification Number BU100954, perform the latest version of PIP4875 to program the Hybrid Powertrain Control Module 2. If the vehicle is a return or built after Vehicle Identification Number BU100954 Plug in the 120V charger and note the behavior of the charge indicator light on the Instrument Panel and the lights on the charge cord set Electric Vehicle Supply Equipment. If the light on the Instrument Panel is not steady green during a charging event, and the two upper charge cord set lights are steady green, record a GDS 2 snapshot from the Battery Charger Control Module Data. While monitoring the data in Global Diagnostic System 2, manipulate the charge cord coupler for proximity voltage changes. If the data has an erratic signal inspect the charge port receptacle connector for signs of water intrusion or corrosion in both the vehicle harness side and charge port side.
PIC5920J2019-08-12. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that will not charge and Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0AA6 and/ or a P1F0E set on 2011-2013 Volt or a P0DAA on 2014 Volt or Cadillac ELR in the Hybrid Powertrain Control Module 2.

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