General Motors. LLC (GM) is recalling certain 2019-2023 Chevrolet 4500HD, 5500HD, and 6500HD Medium-Duty trucks. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause an electrical short-circuit.
Risk and remedy
Risk
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Remedy
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the master cylinder pressure sensor and inspect the wire harness, replacing it, if necessary, free of charge. Owner notification letters were mailed July 11, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222375270.
Water line for engine craked and water gushing all over engine
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
11011989This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
11011900This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
11011805This Preliminary information communicates a GM part number forreflective high temperature heat or insulating tape when repairing wiring harnesses.
11011709This 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.
11011706THis Informational bulletin provides important instructions for contacting the Fleet Action Center for repair authorization prior to replacement of certain parts.
11011205This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
11010576This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.
11010545This service bulletin provides information on key code security rules and information on GM keycode look-up applications (U.S).
11010495This bulletin provides information on Warranty Administration Required Operating Procedures - 8 Points (U.S. Only).
11010491This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
11010488This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.
11010421This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
11009764This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
11009532This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
11009531This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
11009039This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).
11009037This service bulletin provides information on Enhancing Field Product Reports with Digital Pictures.
11008956This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).
11008906This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
11008898The bulletin provides direction on how to locate the Temporary Service Part (TSP) form in GlobalConnect.
11007936This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
11007935This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
11007721This service bulletin provides information on AGM batteries that require less frequent charging in storage.
11007208This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
11007155This informational bulletin advises the technician that the engine and related parts will be debited if found that the tech did not properly prepare the engine block from dirt and debris in bolt holes or if found that the block was damaged by the tech.
11007121This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
11007115This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
11007095This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
11006682This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
11006670This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
11006621Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.
11006511This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.
11006421GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
11006290This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
11006282This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.
11006278This service bulletin describes the U.S. Dealer Special Tool Loan Program process.
11005339This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter.
11005311This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
11004761This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
11004727This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
Every Chevrolet 6500HD model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.