Search results
-
W
Voltage gauge
OK, Here is the deal. I could not find anything on the low voltage/charging issue nor could the dealer provide any useful information so I requested information from GM. The following is their reply: The Electrical Power Management Overview (as they call it) The electrical power management...- wcourt
- Post #14
- Forum: Engine & Drivetrain
-
W
Voltage gauge
Well, I have the Tahoe back from the dealer (after 5 days). They say it is "highly likely" the voltage problem was due to the old TCM software. Because it was stuck in 4wd and they did update the software, they have not had a voltage drop issue. Time will tell. I will say that since the software...- wcourt
- Post #7
- Forum: Engine & Drivetrain
-
W
Voltage gauge
Digital volt meter in the power/lighter sounds like a good diagnostic tool. I will get one. Dealer still has the Tahoe (day 3). This is an update today from the dealer: "We know there is definitely an issue it’s just a matter of getting the concern to happen and then diagnosing what we duplicate".- wcourt
- Post #6
- Forum: Engine & Drivetrain
-
W
Voltage gauge
Voltage gauge reading low intermittently. 2015 Tahoe. Not even 1,800 miles yet. Also, battery dead overnight. Perhaps a different issue, but at the same time, locked in 4wd with switch in 2wd. Dealer updated TCM software to resolve 4wd issue. Battery and/or voltage issue still open. Dealer still...- wcourt
- Post #4
- Forum: Engine & Drivetrain
