Technical Service Bulletins (TSB)

CHEVROLET — SIERRA 1500, SILVERADO 1500 (2014–2018) — 10 vehicle combinations

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This Preliminary information communicates a restricted part due to stock limitation.

CHEVROLET — CORVETTE (2023–2024) — 6 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 regard to the Check Engine Lamp illuminated on Driver Information Center (DIC).

CHEVROLET — SUBURBAN, TAHOE, YUKON (2023) — 12 vehicle combinations

110000 ELECTRICAL SYSTEM

This Preliminary information communicates information on to verify if the correct Rear Short Range Radar brackets are heat staked to the rear fascia. If brackets are installed in incorrect location U3000 SYM76 can set.

CHEVROLET — SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO EV (2019–2024) — 165 vehicle combinations

118410 ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SOFTWARE

This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.

CHEVROLET — SIERRA 1500, SILVERADO 1500 (2019–2024) — 12 vehicle combinations

106000 POWER TRAIN:AXLE ASSEMBLY

This Preliminary information communicates how to isolate a tick noise from the rear axle housing.

CHEVROLET — CORVETTE (2023)

060000 ENGINE AND ENGINE COOLING

Customer Satisfaction Program - Certain vehicles may have a condition in which the carbon fiber Back Body Opening Side Filler (closeout panel) was not received. Dealers will install the carbon fiber Back Body Opening Side Filler.

CHEVROLET — COLORADO, SIERRA 1500, SILVERADO 1500 (2023) — 3 vehicle combinations

060000 ENGINE AND ENGINE COOLING

Customer Satisfaction Program - Certain vehicles may have a condition in which the engine block was produced with cracks. Dealers are to replace the engine.

CHEVROLET — 3500, 4500, LOW CAB 3500, LOW CAB 4500, LOW CAB FORWARD 3500, LOW CAB FORWARD 4500, LOW CAB FORWARD 5500 (2016–2024) — 22 vehicle combinations

060000 ENGINE AND ENGINE COOLING

This bulletin advises of a new vacuum pump and pulley and a new way to route and secure the vacuum hose.

CHEVROLET — SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SILVERADO EV (2022–2024) — 19 vehicle combinations

162500 STRUCTURE:BODY:TAILGATE

This Preliminary information communicates that the inner tailgate cannot be disabled if the vehicle is not equipped with passive entry.

CHEVROLET — SILVERADO 1500, TAHOE (2021–2024) — 14 vehicle combinations

116340 ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER

This Preliminary information communicates where to find the back antenna for learning new key fobs.

CHEVROLET — CANYON, COLORADO (2024) — 8 vehicle combinations

340000 COMMUNICATION

Cancellation of Stop Delivery Order - GM Reference Number N242437620

CHEVROLET — SILVERADO 3500, SILVERADO 4500HD, SILVERADO 5500HD, SILVERADO 6500HD (2019–2024) — 16 vehicle combinations

200000 WHEELS

This Preliminary information communicates an issue with an ABS MIL and DTC setting for the wheel speed sensors. Dealership are to inspect the wheel speed sensor air gap, wiring and connections as instructed.

CHEVROLET — TRAX (2024–2025) — 13 vehicle combinations

110000 ELECTRICAL SYSTEM

This service bulletin provides repair information to correct a customer concern of the HVAC Inoperable During Remote Start.

CHEVROLET — SIERRA 1500, SILVERADO 1500 (2022) — 2 vehicle combinations

353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT

This Preliminary information communicates that GM is aware of and working on the audio issue.

CHEVROLET — CORVETTE (2020–2024) — 5 vehicle combinations

121000 EXTERIOR LIGHTING:HEADLIGHTS

This Preliminary Information communicates instructions for a dealership technician to properly diagnose a Service Headlamp System message.

CHEVROLET — BLAZER EV, BOLT EUV, BOLT EV, HUMMER EV, SILVERADO EV (2022–2024) — 8 vehicle combinations

356000 EQUIPMENT ADAPTIVE/MOBILITY

This service bulletin provides information for dealers/technicians on Grunt Noise with Adaptive Cruise or One-Pedal Drive.

CHEVROLET — BLAZER EV (2024)

160000 STRUCTURE

This technical bulletin provides a procedure to correct the condition of Poor Fitting Charge Port Door and/or Charge Port Door Sticks Out at Bottom.

CHEVROLET — CORVETTE (2023–2024) — 2 vehicle combinations

100000 POWER TRAIN

This engineering information (EI) closure ends the need for gathering further information from technicians in regard to a noise heard coming from the transmission area.

CHEVROLET — CORVETTE (2020–2024) — 5 vehicle combinations

030000 SERVICE BRAKES, HYDRAULIC

This service bulletin provides information for dealers/technicians on Brake Pulsation, Noise and/or Visible Pitting Condition to Brake Rotor Surface.

CHEVROLET — SILVERADO 1500 (2022)

353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT

This Preliminary information communicates a normal condition with the animation screen for the 2022 Silverado with the ZR2 package.

CHEVROLET — SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500 (2024) — 12 vehicle combinations

118510 ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE

This Preliminary information communicates on a software anomaly that causes a Rear Auto Brake and Park Assist Unavailable message on start up that is temporary and how to address that concern.

CHEVROLET — EXPRESS 3500, SAVANA (2023) — 4 vehicle combinations

353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT

This Preliminary information communicates an engineering investigation the concern with Bluetooth missing from vehicles that show as built with Bluetooth.

CHEVROLET — SILVERADO EV (2024)

010000 STEERING

This Preliminary information communicates a software anomaly that causes a power steering message to appear due to a software anomaly and to clear DTC until updated software is released

CHEVROLET — SIERRA 1500, SIERRA 2500, SIERRA 3500, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500 (2022–2024) — 18 vehicle combinations

162500 STRUCTURE:BODY:TAILGATE

This Preliminary information communicates a new tailgate feature which allows the customer to enable or disable the inner tailgate.

CHEVROLET — CAMARO (2024)

350000 EQUIPMENT

Customer Satisfaction Program - certain vehicles may have been double charged for the Black Center Stripe. Dealers will provide the customer with a reimbursement check in the amount of $470.00 USD