Best Answer
Same Troubles

I have an 04 Trailblazer and just had my battery replaced as well and a 125 amp fuse. The mechanic at the dealership told me we blew the fuse because when we jump started the suv, we crossed polarity. I told him we didn't but he wouldn't check the dash vent fuses without another labor charge so i am stuck with frozen feet and frosted windows for a few weeks! I was hoping to find an answer!

The same problem happened to me when I replaced the battery. I too have an 03 Trailblazer. The AC works great through the defrost and the floor, but no vent! I'll keep looking for the answer. I hope someone posts the solution fast. It gets hot in Texas. Same here...'03 therr are two answeres to this problem posted on this site my best solution is to pay a dealer.

You need to replace the HVAC mode actuator. This is found under the dash. has additional details on how to replace this. Do a search in their forums. They have answers to almost anything dealing with Trailblazers and Envoys.

2010-05-18 00:53:55
This answer is:
User Avatar

Your Answer


Related Questions

Why would the remote locks work intermittently on a 2002 Chevy trailblazer?

The battery in the remote needs to be replaced.

Have replaced battery and alternator and battery warning light still remains lit on dash Computer has also been reset on a 2002 Jaguar X Series Any suggestions?

no no

How do you reset instrument panel in your 2004 Chevy Trailblazer?

The best and fastest way to reset the instrument panel of 2004 Trailblazer is to disconnect both battery terminals. Reconnect them after about 30 minutes and everything should be reset.

1993 ford tempo changed the solenoid it started now it does nothing replaced the battery but it acts as tho there is no battery in it any suggestions?

make sure the small wire is hook to the post

Why don't my gauges work after I replaced my battery on my 1999 Trailblazer?

The fuse for the cluster may have popped. Please realize that the 1999 Blazer is a totally different Platform from the 2002 + TrailBlazer/Envoy/Bravada/Rendezvous/Saab97X GMT360 pl;atform trucks.

How do you reset the computer on a Chevy Trailblazer?

disconnect the battery

My Jeep is hard to start when cold and the battery was replaced today any suggestions what else it could be?

Try an engine heater or an oil heater. These are both inexpensive.

When you turn on your heater in your 2002 trailblazer it acts like it wants to die you replaced a battery and this is when the problem started?

Sounds like a pulley may be freezing up. Have a mechanic check the pulleys.

If a1973 dodge dart swinger 318 replaced everything battery still dies?

apparently you have a draw or a short when the vehicle is shut off, disconnect the battery when not in use and see if the battery stays charged.

You replaced the Battery on your 2000 Chevy Express G1500 w5.7l engine and tried to start it heard a pop and everything went dead - Is there a main fuse or somthing that you can check?

This was caused by a poor connection at the Battery. We disconnected and and reconnected the new battery and everything worked fine.

Is it required to reset the computer PCM when changing the battery on a 2003 Chevy Trailblazer LS?

When you change the battery you automatically reset the PCM. Any time you remove the negative battery cable for about 15-20 minutes you will reset the PCM. This will reset your Check engine light also. Trailblazer enthusiasts forum with all the answers for your Trailblazer.

I have replaced the fuel filter in my 2003 ford expedition and it still doesn't start up immediately any suggestions?

Check the starter, spark plugs, distributer cap, battery.

Where are the battery terminals on the 2004 Chevy Chevy Trailblazer?

They are the standard GM style side post style. Trailblazer enthusiasts forum!

Where can I buy a charger for my battery?

You device can be replaced by finding a geek squad member and asking about it. Thank you for letting me answer the question. Thank you for everything.

Why would everything in your car be slow such as windshield wipers after putting in a new battery?

Your alternater might have to be replaced. Chances are your battery was not faulty. Your alternator most likely needs repairing or replacing.

02 trailblazer lights low when first turn on?

Probably a weak battery.

Where is the battery on the 2004 Chevy Trailblazer?

Drivers side on front of engine compartment

When replacing the front sway bars in a 2002 Trailblazer does the battery need to be disconnected?

no it does not.

How do you get your key to turn on your 2003 trailblazer after you have changed the battery?

Check fuses as the battery change should not initiate a "No Start" condition.

How do you reset a replaced tire pressure sensor on 2007 Envoy?

Try disconnecting the battery for 20 minutes. This should put the computers into a reset mode. The Trailblazer/Envoy enthusiasts forum with all the answers!

2002 Taurus 91K battery died - replaced battery but it keeps going dead. Alternator is fine. Any suggestions?

Sounds like you have something that is on all the time and drawing power from the battery. Check, dome, courtesy, trunk, hood, glove box, and brake lights.

Your s500 Mercedes battery went dead and you replaced it but the car will not start the horn doesnt blow sun roof neither but everything else does?

I'm sorry if this sounds silly, but did you put the battery in backwards?

What are the signs of 2004 Chevy trailblazer alternator problems?

the battery dies, Belt replacement

How do you get into a Chevy Trailblazer if the battery dies?

Take your key and stick it into the lock on the door and turn.

What makes a 99 3.8V6 Firebird abruptly cut off while driving you have replaced fuel pump and plate that coil packs sit on any suggestions PLEASE?

You have a bad battery or you have a bad alternator.