2004 GMC Canyon Owner's Manual - Page 382

(f) Lubricate all key lock cylinders, body door and fuel door hinges, latches and locks (including glove box and console doors), hood latch assembly, secondary latch, pivots, spring anchor, release pawl and any moving seat hardware. Lubricate hood safety lever pivot and prop rod pivot and tailgate latch bolt, handle assembly pivot points and hinges. More frequent lubrication may be required when exposed to a corrosive environment. Applying silicone grease on weatherstrips with a clean cloth will make them last longer, seal better and not stick or squeak. (g) A fluid loss in any vehicle system could indicate a problem. Have the system inspected and repaired and the fluid level checked. Add fluid if needed. (h) Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: − In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher. − In hilly or mountainous terrain. − When doing frequent trailer towing. − Uses such as found in taxi, police or delivery service. (i) Drain, flush and refill cooling system. See Engine Coolant on page 5-25 for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and filler neck. Pressure test the cooling system and pressure cap. 6-8