GMC Envoy 2004 Owner's Manual
![GMC Envoy 2004 manual cover](/images/VQFAZGutmxajXxlaufzLWoYy/thumbs/thumb175x175.webp)
To reset the oil change light, turn the ignition to the "ON" position without starting the engine. Press the accelerator pedal to the floor three times within five seconds. The light should flash and then go off, indicating the system is reset.
GMC recommends using 5W-30 motor oil for the 2004 Envoy. Make sure to choose an oil that meets the API certification.
Check the fuses related to the AC system, ensure the refrigerant levels are adequate, and inspect the compressor and belts for any signs of damage or wear. If the problem persists, a professional diagnosis may be necessary.
The recommended tire pressure for the 2004 GMC Envoy is typically 32 psi for both front and rear tires. Always refer to the sticker on the driver's side door jamb for the most accurate information.
First, open the hood and locate the back of the headlight assembly. Remove the power connector and then twist the bulb socket counterclockwise to release it. Replace with a new bulb, ensuring not to touch the glass, and reassemble.
Common causes include a loose gas cap, faulty oxygen sensors, or issues with the catalytic converter. A diagnostic scan tool can provide specific error codes for accurate troubleshooting.
Turn off the engine and remove the key. Disconnect the negative battery cable followed by the positive cable. Remove any securing brackets and lift the battery out. Install the new battery, reconnect the cables, and ensure they are tight and secure.
The 2004 GMC Envoy has a towing capacity of up to 6,300 pounds when properly equipped with the V8 engine option and the appropriate towing package.
Warm up the vehicle by driving it for a few minutes. Park on a level surface and leave the engine running. Locate the transmission dipstick, remove it, wipe it clean, reinsert it fully, and check the fluid level. Refer to your owner's manual for the correct fluid level range.
Signs of a failing fuel pump include difficulty starting, engine sputtering, loss of power under load, and an unusual whining noise from the fuel tank area. If these symptoms occur, a professional inspection is recommended.