Problems · by component
2008 Chevrolet Tahoe Hybrid electrical system problems
100 owner complaints to NHTSA about the 2008 Chevrolet Tahoe Hybrid cite electrical system, 17% of all 586 complaints for this model year.
Complaints
100
17% of all complaints
Crashes
0
Reported by owners
Fires
2
Reported by owners
Injuries
0
Reported by owners
What owners say about the electrical system
Verbatim from NHTSA complaints, newest first
“The battery energy control module GM Part # 84442220 located inside the HV battery assembly caught fire. The harness that was most affected was the battery cell voltage sense wires. The way the battery voltage sense circuit is manufactured seems dangerous as there is no fusible link between the battery cell and the module. If a short circuit occurs the full current of the cell will be induced on a very thin gauge wire going to the module which will result in a fire.”
“We were sitting in a parking lot with the engine running and heard an explosion in the vehicle. Later we discovered that the left rear, side curtain air bag had deployed. Horn has been inoperable for months cruise control hasn't worked in years steering wheel radio controls don't work. No appointment reason for any of it. Pass air bag off warning light red Air bag light is usually on but not always.”
“Was Delivered. Took for a test drive. Stalled at stop sign. Restarted went down the road stalled and slammed into park. Contacted company was told to take to local GMC/Chevy, (said they did a bunch of research and this part should work) basically guessing had my vehicle for 9 months replaced some sensor. Had my boyfriend Drove to red light, not even half a block, stall (stable track sensor) but lost all electric but v8 still ran took to another ( had towed) to another local shop they had for 4+ months couldn't figure out said it was running 18+ codes and would cost too much to go through. Contacted company the gentleman politely laughed and said ur kidding me right it's been years I tried to explain how long it was taking due to both repairs company had it over a year n half. No sympathy he knew exactly what he sold.”
“I had bought the 08 Tahoe hybrid. The day it was delivered, it stalled I called the dealership out of Minnesota and was told oh it could be this it could be that went to two local shops and a private shop all had different specifications as to what was wrong with the car due to so many codes being thrown out. You would try to take off from a stop sign or a red light car would completely lose all power, almost had multiple people slam into me because it always happened, caused so much anxiety because my only wheels to get my children around. Once again was told to take it in GM had it for over a year and could not figure the issue out. I was told by the dealer multiple times it was not their issue and they knew the position I was in an said it was inspected but refused to send me the paperwork.”
“a few thing is on my car I have got new battery, right hub Barrier and to get left repaired! Light on in care say contraction something has to do by power steering”
“The air ride control module under the spare tire in the rear of the vehicle has deteriorated and the connections melted so I had to disconnect the module I noticed smoke from underneath the rear of my vehicle I believe if I did not disconnect the module there would have been a fire i have the module that I can send pictures to you of the plug the connection and the deteriorating module these vehicles are supposed to be made to be used in the upstate weather and to leave a important piece of electrical equipment out like that is nonsense and to replace the module is approximately 500 without me going to the dealership.”
Showing 6 of 100 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.