GMC Sierra 1500: Common Problems, Fault Codes & Repairs Everything for the GMC Sierra 1500 in one place — its common problems and reliability, the fault codes owners see most, and the tools to diagnose them. GMC Sierra 1500 specs & capacities GMC Sierra 1500 — Fuse box location & guideGMC Sierra 1500 — Oil capacity & typeGMC Sierra 1500 — Tire pressureGMC Sierra 1500 — Towing capacityGMC Sierra 1500 — Bolt pattern & wheel sizes Recommended tools Automotive MultimeterCompression TesterBattery & Charging System Tester Read your code: OBD-II scanners →