20 Most Recent 2003 Buick Regal - Page 3 Questions & Answers

try this

Have the charging system checked. The alternator may need testing.

The warning light is telling the driver the alternator is not charging the battery. The alternator and wiring would need to be checked.

I have a similar problem with my 2002 Regal, mine wont shift out of park. I hear a switch clicking under the steering column cover when I depress the shifter button when I try to take it out of park. Have you found a solution yet? Larry

You need to attach an ohm meter at the battery with the negative cable disconnected and see what kind of draw you have, my guess is you have a light on somewhere glove box, trunk under hood, these are most common and aren't seen after the car is turned off. Easiest way to check the trunk light is to put someone in it and close it, if one of these is staying on it will draw down your battery.

common issue with these clusters, they short out... Need to replace it , but there are some people who can repair the one ya have but usually cost around 200$

your battery replacement is a coincidence if anything your faulty ignition caused a battery drain reciprocating the need for a new battery. your ignition assembly is damaged very common on this year and make. not the lock cylinder but the ignition assyembly

Ok, first off do you have a chiped key? look on the side for a resistor symbl if yes try a spare key if you have one. secondly is the theft light flashing? third option turn the key to the on position wait 15 and try to start the car, if it is your security system this will sometimes deactivate it

I had the same problem on my 2003 regal,
I looked under the seat, and i noticed that the electrical wiring harness for the seat had caught on something . The wires had just streched so far that they all broke...all i had to do was splice them back together and presto..it worked.


check that 1st..

if not the problem, check your fuse to see idf its blown.

Stop by an Auto Parts Store and they should have an OBD2 scanner that they will "lend" you. This scanner will tell you a CODE which in turn tells you what the problem MIGHT be. It is not 100% correct but is usually a pretty good indication. Reset or erase the codes and see if the check enigne light comes back on. If it does, rescan for CODES to see if you are getting the saem one(s). Good Luck .. . .

Seems like the immobilizer, the best option is to get diagnostic check up and you will know for sure, it could be something simple like loose wire connection, you could try to detach negative terminal on the battery, leave for 15 minutes, than switch your parking light on and reconnect the terminal, this may reset the fault in the ECU but its only a guess. If this does not help than diagnostics only.

Check for ignition misfires & if it is worse goingup hills check the egr system

I have the exact same problem. EXCEPT I don't have heated mirrors. Anyone else have any insight??