2004 Chevrolet Tahoe electrical system problems
213 owner complaints filed with NHTSA name the electrical system on the 2004 Chevrolet Tahoe — 46% of all complaints for this model year.
What owners report
“There is a recall #04004. "brake hydro-boost relief valve" but my vin# is not on the list. Over 64,000 vehicles were affected and there is a "#1" on the mounting surface. All of the units detected a machining error in the relief bore cavity for modules produced from a machine identified as "fadal…”
filed Jun 5, 2020
“The main engine wiring harness was full of condensate and corroded. The vehicle would just shut off while driving. Took multiple trips to the mechanic shop for them to be able to duplicate and correct the issue. Online research shows many tahoe owners experiencing the same issues.”
filed Sep 1, 2019
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
23-NA-001 · Service Bulletin/Repair Instructions · issued Mar 28, 2025This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to…
General Communication · Service Campaign · issued Aug 26, 2024This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer…
PIT5195H · Service Bulletin/Repair Instructions · issued Aug 13, 2024
Electrical System problems in other Tahoe years
| Year | Reports | Share |
|---|---|---|
| 2025 Tahoe | 8 | 21% |
| 2024 Tahoe | 12 | 20% |
| 2023 Tahoe | 36 | 18% |
| 2022 Tahoe | 35 | 20% |
| 2021 Tahoe | 56 | 13% |
| 2020 Tahoe | 11 | 20% |
| 2019 Tahoe | 16 | 16% |
| 2018 Tahoe | 12 | 12% |
| 2017 Tahoe | 20 | 12% |
| 2016 Tahoe | 31 | 12% |
| 2015 Tahoe | 135 | 21% |
| 2014 Tahoe | 15 | 17% |
Other reported problem areas on the 2004 Chevrolet Tahoe
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.