Top 10 2008 Chevrolet Impala Questions & Answers

You have two minutes to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer than two minutes, to match the first tire and wheel, or more than five minutes to match all four tire and wheel positions the matching process stops and you need to start over.
The TPMS sensor matching process is outlined below:

1. Set the parking brake.
2. Turn the ignition switch to ON/RUN with the engine off.
3. Press the Remote Keyless Entry (RKE) transmitter's lock and unlock buttons at the same time for approximately five seconds. The horn sounds twice to signal the receiver is in relearn mode and TIRE LEARNING ACTIVE message displays on the DIC screen.
4. Start with the driver side front tire.
5. Remove the valve cap from the valve cap stem. Activate the TPMS sensor by increasing or decreasing the tire's air pressure for five seconds, or until a horn chirp sounds. The horn chirp, which may take up to 30 seconds to sound, confirms that the sensor identification code has been matched to this tire and wheel position.
6. Proceed to the passenger side front tire, and repeat the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat the procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the procedure in Step 5. The horn sounds two times to indicate the sensor identification code has been matched to the driver side rear tire, and the TPMS sensor matching process is no longer active. The TIRE LEARNING ACTIVE message on the DIC display screen goes off.
9. Turn the ignition switch to LOCK/OFF.
10. Set all four tires to the recommended air pressure level as indicated on the Tire and Loading Information label.
11. Put the valve caps back on the valve stems.

Locate the t-handles on the left and right side of the rear seat cushion.They should be on the bottom front of the seat.Press down on the seat and pull the handles to release the retainers and pull the seat up and out to remove the seat cushion.Hope this helps.Good luck.

My Chevy Impala is a 2009 and it's doing the same thing the radio the windows all of that works but when I try to turn the key it just makes a click sound and it won't start when I try to jump start it so I let it sit for a day and the next day it worked when I try to start it I went to the store and ran some errands I started it like 10 times and then all of a sudden it did it again it was a short in the starter wires when I when hit a bump the starter wires would touch

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It is 100, i just had to replace the hub assemble on my 2008 impala

Most heater cores are located behind the dashboard. This can be a difficult job putting it back together. Be sure it really is the heater core. ie water on the floor boards,the smell of antifreeze inside the cabin.Steamed windows all indicate the heater core.

The diagram should be available ion the panel above the radiator, In case its not there, you can refer to the following image:

Engine power reduced problem is the main culprit ! This has to do with the electronic throttle control system . Computer controlled throttle control . The Gas pedal assembly has position sensors as does the throttle body . These are inputs to the PCM/ECM - engine computer . By the signal from the gas pedal the PCM / ECM will control a DC electric motor on the throttle body ,opening an closing the throttle plate .When there is a problem with this system the check engine light comes on and the PCM/ECM will disable traction control an that light will be turned on etc..... These problems can be very tough to find . How much are you willing to spend to track down this problem . Need special tool's to find these problems . Electrical test scope (lab scope ) . Over time these parts wear an the PCM will see conflicting signals . Sometimes the part needs to wear out to find the problem . Have the repair shop keep the vehicle till they find the problem .
Throttle Actuator Control System

Drive by Wire Function and diagnostics by Wells

The security, antitheft or lock picture/icon is a visual indication that something in the car's antitheft system is failing. In most GM cars and trucks there is a hidden system that most people are unaware even exists. From the moment you put your key in the ignition, there begins a constant line of communication between your key's security chip or transponder, to the ignition's lock cylinder, and then to the car's TDM (Theft Deterrent Module). These 3 parts are in CONSTANT communication. If the key is in the ignition, then these parts are sending signals to each other. The security light illuminates when that signal gets broken, even just for a second. When the signal breaks, the car misinterprets this as an attempt at theft and goes into antitheft mode. The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key. This is why the security light turns on and shuts down your vehicle. This link explains it pretty well.

http://www.diy-gm-security.com/





Perform the re-learning procedure

1. Turn ON the ignition, with the engine OFF.



2. Attempt to start the engine, then release the key to ON (vehicle will not start).



3. Observe the SECURITY light, after approximately 10 minutes the light will turn OFF.



4. Turn OFF the ignition, and wait 10 seconds.



5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes ( the vehicle



6. is now ready to relearn the Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK).

Start the engine (the vehicle has now learned the Sensor Data Code and/or password).