tbarn started following Found unknown plastic part behind back seat, Discovered! Features you may not know about..., What is difference between cheap code reader and high price tool ? and and 7 others
tbarn replied to Fuallyn's topic in 1988-1999 Chevrolet & GMC C/K GMT400 PlatformCheap code readers quite often miss codes. I have had several cheap readers and I have on multiple occasions found that my cheap readers compared to a tech2 would miss as many as 10 codes. Now, as for 14 and up trucks that require GM's GDS2, that's a different story. Software is the problem. You need a laptop, MDI and the software interface. So in that case, there is not much choice but to try a cheap alternative. As long as it's your own vehicle and not a business, you don't have much to loose.
IMHO you are just throwing band aids at the problem. Bulbs don't just fail regularly. Unless they are junk bulbs. Even that is unlikely. You have an issue elsewhere. Most likely the socket but not limited to that. You can get brand name bulbs for less than $5. Try a good one and go from there.
A lot depends on whether you have a functioning key. Otherwise you'll probably have to get towed to a dealer. A second key can be learned from a working key. Fob has to be programmed via SPS at a dealer.
tbarn replied to aseibel's topic in 2014-2018 Silverado & Sierra TroubleshootingStill have the old "good" bulb? Try it. If it works then you know you have 2 bad bulbs. If not, you'll need a volt meter and or test light. The headlights are fused seperately so check the fuses.
There are no "codes". HMI will have to be programmed. Your radio and your "new' HMI have different vin's. Problem is that if your truck did not come with a back up camera, the programming will not add it. It's not up to the dealer. They can only download the program GM gives them.
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