Technical Service Bulletins (TSB)

CADILLAC — ESCALADE ESV, SUBURBAN, TAHOE, YUKON XL (2021–2023) — 12 vehicle combinations

160000 STRUCTURE

This Preliminary information communicates an issue with high resistance in the glass breakage loop that could cause a dead battery or unwanted theft alarm. Dealers are to inspect the glass breakage loop.

CADILLAC — HUMMER EV, LYRIQ (2022–2023) — 9 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This Preliminary information communicates to the field engineering contacts to assist in the diagnosis of HVAC concerns on the new 2022-2023 HUMMER EV and the 2023 LYRIQ.

CADILLAC — LYRIQ (2023)

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Stop Delivery Order: Reference Number N232404440

CADILLAC — LYRIQ (2023)

280000 BACK OVER PREVENTION

This Preliminary information communicates that a click or tick noise may be heard when adjusting HVAC temperatures.

CADILLAC — ESCALADE ESV, SUBURBAN, TAHOE, YUKON XL (2021–2023) — 12 vehicle combinations

353630 EQUIPMENT:ELECTRICAL:INFOTAINMENT:BLUETOOTH/WIFI

This Preliminary information communicates and issue with customers misunderstanding weather they need to bluetooth pair the factory provided headphones.

CADILLAC — 3500, 4500, 4500HD, 4500XD, 5500HD, 5500XD, 6500HD, C3500, C4500, CANYON, COLORADO, CRUZE, EQUINOX, ESCALADE, ESCALADE ESV, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, EXPRESS CUTAWAY VAN, G VAN BUS, G3500, G4500, LOW CAB 3500, LOW CAB 4500, LOW CAB 5500, LOW CAB FORWARD 6500, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SUBURBAN, SUBURBAN 1500, T SERIES, T7500, TAHOE, TERRAIN, TOPKICK, W-SERIES, W3500, W4500, W5500, YUKON, YUKON XL (2010–2024) — 302 vehicle combinations

080000 FUEL SYSTEM, DIESEL

This service bulletin provides information on availability of Diesel Fuel additives.

CADILLAC — CT6 (2016–2020) — 5 vehicle combinations

181000 VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

This Preliminary information communicates additional diagnostics for shudder related complaints.

CADILLAC — XT4 (2019–2023) — 12 vehicle combinations

120000 EXTERIOR LIGHTING

This service bulletin provides repair information to correct a customer concern of seeing front headlamp protective tape peeling.

CADILLAC — CORVETTE, CT4, CT5 (2022–2023) — 12 vehicle combinations

110000 ELECTRICAL SYSTEM

Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain vehicles built beginning December 2, 2021. The affected vehicle owners should have been made aware of the

CADILLAC — LYRIQ (2023) — 2 vehicle combinations

200000 WHEELS

Customer Satisfaction Program - Certain vehicles may have a condition in which the reverse rim wheel valve clearance has limited space to use standard air chucks when adjusting tire pressure. Dealers will provide customers with Valve Stem

CADILLAC — LYRIQ (2023) — 3 vehicle combinations

110000 ELECTRICAL SYSTEM

Customer Satisfaction Program - Due to an update with the software for the Super Cruise and Surround Vision System, vehicles that are in a??Opena?? status will be temporarily suspended in Investigate Vehicle History (IVH). IVH will be manu

CADILLAC — ACADIA, BLAZER, XT4 (2022–2023) — 12 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Check Engine Lamp illuminated on the Driver Information Center (DIC).

CADILLAC — CT4, CT5, SUBURBAN, TAHOE, XT6 (2022) — 5 vehicle combinations

010000 STEERING

Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain 2022 model year vehicles listed above, built beginning November 17, 2021. The affected veh

CADILLAC — CANYON, COLORADO, CRUZE, EQUINOX, ESCALADE, ESCALADE ESV, EXPRESS, EXPRESS 1500, EXPRESS 2500, EXPRESS 3500, EXPRESS 4500, EXPRESS CUTAWAY, SAVANA, SAVANA 1500, SAVANA 2500, SAVANA 3500, SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD, SUBURBAN, SUBURBAN 1500, T SERIES, T6500, T7500, T8500, TAHOE, TERRAIN, YUKON, YUKON XL (2007–2024) — 201 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.

CADILLAC — LYRIQ (2023) — 2 vehicle combinations

100000 POWER TRAIN

This Preliminary information communicates to the dealer of codes that set not to clear,unhook 12 volt power or program any module until discussing case with GM TAC. Once TAC case is started we will be reqesting the service managers name for

CADILLAC — ESCALADE, ESCALADE ESV (2023) — 2 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This technical bulletin provides a procedure to check the crankshaft damper for a possible wrong rib configuration that may cause the customers concern.

CADILLAC — ATS (2013)

110000 ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician with the steps on enabling afterblow. Technician will need to use Global Diagnostic System 2 and locate the Heater-Vent-Air Conditioning module part number an

CADILLAC — CT4, CT5 (2022–2023) — 4 vehicle combinations

100000 POWER TRAIN

This Preliminary information communicates the direction a technician needs to take when DTC P30EF is set.

CADILLAC — ESCALADE, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, YUKON (2020–2021) — 8 vehicle combinations

100000 POWER TRAIN

This Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308. Upon diagnosis it may be discovered the lifter has come apart. It is recommended to replace the lifter guide an

CADILLAC — CT4, CT5, ESCALADE, ESCALADE ESV, SIERRA 1500, SILVERADO 1500, SUBURBAN, TAHOE, YUKON, YUKON XL (2023) — 10 vehicle combinations

100000 POWER TRAIN

Service Update- Certain vehicles may experience an intermittent loss of communication with the Transmission Control Module (TCM). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software c

CADILLAC — CORVETTE, CT4, CT5 (2022–2023) — 18 vehicle combinations

110000 ELECTRICAL SYSTEM

Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain vehicles built beginning December 2, 2021. The affected vehicle owners should have been made aware of the

CADILLAC — CT4, SUBURBAN, TAHOE, XT6 (2022) — 10 vehicle combinations

010000 STEERING

Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain 2022 model year vehicles listed above, built beginning November 17, 2021. The affected veh

CADILLAC — CT4, SIERRA 1500, SILVERADO 1500 (2023) — 6 vehicle combinations

100000 POWER TRAIN

This technical bulletin provides a procedure to perform a transmission service quick learn if found that the OTA update was done and reset all the values that may cause the customers concern.

CADILLAC — BOLT EUV, BOLT EV, HUMMER EV, LYRIQ (2022–2023) — 14 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides diagnostic information for dealers/technicians on an Amber Light on Dual Level Portable Charge Cord Set.

CADILLAC — ESCALADE, ESCALADE ESV, SUBURBAN, TAHOE, YUKON, YUKON XL (2023) — 6 vehicle combinations

160000 STRUCTURE

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to water leaking around the interior roof/headliner area.