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Do I need to disconnect battery before removing head unit?
To remove your car stereo, you will first need to disconnect your battery’s ground wire. This is the black wire connected to the battery under the hood of your car. It is dangerous to work on electrical components of a vehicle with this connected.
Where is the heater core on a 2004 Impala?
Replacing your Chevy Impala’s heater core is no easy task. There are several parts you must carefully remove or reposition to disconnect the core from the heating, ventilating and air conditioning (HVAC) module. This module and the core are located behind the car’s floor ducts.
How do you reset the dashboard on a Chevy Impala?
Method 3
- Keep clicking the Information button until you see OIL LIFE REMAINING preceded by a number.
- This is how much oil life is left.
- Press and hold down the Checkmark button for 5 seconds, the number should reset to 100%
- Click the Road button to return to normal dash display operation!
How do you take the radio out of a Chevy Impala?
Pull the top right hand corner of the lower dash panel away from the dashboard. Continue to pull this away working your way to the left until the lower dash panel drops to the floor. Remove the two seven-millimeter bolt screws on either side of the radio. Pull the radio out of the dashboard.
How do I reset my Chevy radio?
To reset your Chevy MyLink system entirely, hold down the Home and Fast Forward buttons simultaneously for 10 seconds. This should reboot the system and resolve any problems that you’re having.
How do you reset the computer on a 2004 Chevy Impala?
Remove the negative battery cable and set it aside, then turn the headlight switch to the ON position to drain the ECM of any residual power. Wait at least 10 minutes, and then turn it back off, re-hook up the negative battery cable, and go ahead and properly start Your Impala; the computer should be reset.
How do you unlock the radio on a Chevy?
How to Unlock a Chevy Radio Step 1: Start the vehicle and turn on the radio. Step 2: Press and hold preset numbers 2 and 3 until a three digit code appears on the radio display. Step 3: Press the AM/FM button. Step 4: Call the Chevy Radio Code phone line at 1-800-537-5140.
Why is the radio locked on a 2004 Chevy?
The radio on your 2004 Chevy uses a radio lock that engages whenever you cut power to the radio. This feature helps to protect the radio from being used if it is ever stolen. In this respect it acts as a theft deterrent.
What to do if your GMC radio says INOP?
If radio display reads “INOP” while the vehicle is on, too many incorrect radio codes have been entered. To remove “INOP” from your display and unlock your radio, you must leave the key in the On position for one hour. Once you’ve retrieved your radio unlock code, write it down for future use.
How do you put a three digit code on a car radio?
Step 1: Start the vehicle and turn on the radio. Step 2: Press and hold preset numbers 2 and 3 until a three digit code appears on the radio display. Write this code down. Step 3: Press the AM/FM button. Your radio will display a second three digit code.