GROUNDWORK — 21V578000: Tires and wheels recall for CHEVROLET SILVERADO 2500 / GMC SIERRA 2500 CHEVROLET SILVERADO 2500 / GMC SIERRA 2500: check the listed vehicles, the reported issue and the manufacturer remedy for 21V578000. Keep the official status and service answers in one private record. Campaign: 21V578000 Official record checked: 2026-10-19T20:40:19.945Z Official campaign: https://api.nhtsa.gov/recalls/campaignNumber?campaignNumber=21V578000 Official VIN lookup: https://www.nhtsa.gov/recalls LISTED VEHICLES (VIN confirmation required) 2020 CHEVROLET SILVERADO 2500 2020 GMC SIERRA 2500 2021 GMC SIERRA 2500 2021 CHEVROLET SILVERADO 2500 OFFICIAL REPORTED ISSUE General Motors, LLC. (GM) is recalling certain 2020-2021 Chevrolet Silverado 2500 and GMC Sierra 2500 vehicles equipped with a 17" spare tire (RPO ZHQ or ZXT) and either the 20" accessory road tire (RPO REM) or the 18" accessory road tire (RPO Q2V). Operating the spare tire with other 20" or 18" tires can prevent the Anti-Lock Braking System (ABS) from engaging. OFFICIAL REPORTED CONSEQUENCE An ABS system that cannot control the rear wheels independently increases the risk of a crash. OFFICIAL REPORTED REMEDY Dealers will provide the appropriate spare tire and apply a new spare tire information label, free of charge. Owner notification letters were mailed on October 18, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; GMC customer service at 1-800-462-8782. GM's number for this recall is N212329780. OFFICIAL NOTES Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov. OWNER PREPARATION Use the campaign description to identify the component being discussed. Do not loosen hardware, lift the vehicle or operate a suspect accessory to test the reported failure. REMEDY TIMING IN THE DATED SOURCE Confirm current remedy arrangements The source does not explicitly establish current remedy availability. Ask the manufacturer about the applicable remedy, required parts or software, appointment arrangements and any interim instructions. Current availability for your VIN: unconfirmed. YOUR SERVICE QUESTIONS 1. Does the manufacturer confirm that campaign 21V578000 applies to this VIN, including the report’s equipment and production restrictions? A matching model and year is only a starting point. The official lookup or manufacturer must establish the individual vehicle’s status. Discussion status / answer: __________ 2. What remedy, required parts or software, and appointment arrangements are currently available for this VIN, and which interim instructions apply? The source does not explicitly establish current remedy availability. Ask the manufacturer about the applicable remedy, required parts or software, appointment arrangements and any interim instructions. Discussion status / answer: __________ 3. Which tire, wheel, attachment or related accessory is covered, and how will the completed remedy be documented? Compare the answer with the reported component: TIRES:TEMPORARY/EMERGENCY SPARE TIRE. Discussion status / answer: __________ 4. Which reported corrective actions (apply, provide) were performed under 21V578000, and which component or function did they address? Compare the provider’s answer with the exact remedy below. Keep the action and affected component on the work order; ordinary maintenance or a visual check may describe different work. Discussion status / answer: __________ 5. How do I obtain and confirm the corrected label or vehicle information specified in 21V578000? Ask which version or item applies to this vehicle and keep the correction record. Use the manufacturer’s instructions for any label or information replacement. Discussion status / answer: __________ 6. What dated document records the remedy performed under 21V578000, and what should I do if the reported concern remains? Keep campaign completion and unresolved symptoms as separate questions. A saved worksheet or booked appointment does not establish a repair. Discussion status / answer: __________ OFFICIAL LOOKUP DECISIONS Not checked or unavailable: eligibility remains unconfirmed; use the official lookup or manufacturer. Campaign listed as open: confirm current instructions, availability and remedy arrangements. Campaign not listed as open: reconcile repair history and lookup coverage with the manufacturer if needed. A zero-open result does not diagnose symptoms. Work order records completed recall work: keep the exact campaign and dated remedy record; report unresolved symptoms separately. YOUR RECORD Check date: __________ Official lookup result: __________ Service arrangement: __________ Existing observation: __________ Questions and work-order notes (no VIN or plate needed): __________ LOOKUP LIMITS A model/year match does not establish VIN eligibility. The official lookup may omit completed recalls, some recent campaigns or recalls outside its coverage. The listed defect does not prove the cause of a symptom on your vehicle. This guide supports owner preparation and does not provide a repair procedure.