For 1990-2009 cars

### Removal Procedure

Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:

• | Air bag deployment

• | Personal injury

• | Unnecessary SIR system repairs

In order to avoid the above conditions, observe the following guidelines:

• | Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring.

• | If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Record all the vehicle preset radio stations.
2. Record the customers's radio Theftlock® code (if applicable).
3. Turn all the lamps and accessories off.
4. Turn the ignition switch to the OFF position (3).
5. Disconnect the negative battery cable.

### Installation Procedure

Important: Clean any existing oxidation from the contact face of the battery terminal and battery cable using a wire brush before installing.

1. Install the negative battery cable.

Tighten
Tighten the negative battery cable to 15 N·m (11 lb ft).

2. On 5.7L equipped vehicles, perform a PCM idle learn procedure. Refer to PCM Idle Learn Procedure in Engine Controls-5.7L
3. Turn the ignition switch to the ACC position (1).
4. Unlock the Theftlock® radio (if applicable). Refer to Radio/Audio System Operation-Theftlock in Entertainment.
5. Reprogram the radio stations to the previous settings.
6. Set the clock to the current time.
7. Turn the ignition key to the LOCK position (2) and remove the key.