2008 Chevrolet Silverado Problems

What owners report

Owners of the 2008 Chevrolet Silverado most often describe electrical problems — instrument gauges that jump or quit, speakers and chimes that stop working, and door lock actuators that fail on one or more doors. Air bag warning lights and, in a smaller number of complaints, unexpected air bag deployment or non-deployment are the second recurring theme, and several owners link them to the Takata recalls. Many of these reports come in between roughly 50,000 and 100,000 miles and are described as intermittent rather than sudden.

1. 1
   Air bags

   Air bag warning light and unexpected deployment

   • 61 complaints (38%)
   • median 86,500 mi at 7.4 yrs old (34 state mileage)
   • 14 mention a crash, fire or injury
   • filed 2010–2022

   Complaints describe the service air bag light staying on, often traced by dealers to a failed front impact sensor, and in a few cases air bags deploying with no impact or failing to deploy in a crash. Owners also write about recall notices for the Takata air bag campaigns, sometimes reporting the parts were not yet available or that a dealer said the warning light was unrelated to the recall. Injury and windshield damage are mentioned in a few of the deployment reports. Reported across a wide mileage range, from very low mileage up to about 130,000 miles.

   What to check: Confirm the air bag warning light goes out after startup and check whether any open Takata air bag recall is still outstanding for the truck's VIN; a dealer can run the VIN. Ask whether front impact sensors or the air bag module have been replaced.

   2 excerpts from owner complaints in NHTSA records

   “I was on my way home from work after working a very long day and I fell asleep at the wheel and went off the side of 225. All I remember was waking up in between trees about two feet away from sims bayou. My vehicle was totaled. No air bags deployed.”

   NHTSA complaint #10672875, filed 2015-01, 141,000 miles

   “To date I only have 60kmi. On my 2008 Silverado. Its immaculetly maintained. So far both airbag sensors have gone bad and I've lost cruise controll. Ive also lost the driver side speaker functionality.”

   NHTSA complaint #10723109, filed 2015-06, 55,000 miles
2. 2
   Electrical system

   Instrument gauges and electrical gremlins

   • 64 complaints (40%)
   • median 67,040 mi at 6.1 yrs old (58 state mileage)
   • 10 mention a crash, fire or injury
   • owner-quoted repair $1,000 (median of 5 quotes)
   • filed 2008–2022

   Owners describe gauges that swing or read wrong, instrument panel lighting that flickers or goes dark, and speakers, turn-signal chimes and warning chimes that stop working, sometimes coming back when the key is jiggled. Some complaints describe the truck dropping into anti-theft mode and refusing to start, or stalling and restarting. Dealers are reported to have replaced battery cables, ignition switches or wiring harness parts, with mixed results. Usually reported between about 40,000 and 120,000 miles, and often intermittent.

   Recall 08V4410006 related service bulletins

   What to check: Start the truck and watch every gauge and warning light, then try the radio, speakers, horn and chimes. Ask whether the ignition switch, battery cables or body control module have been serviced.

   2 excerpts from owner complaints in NHTSA records

   “The front speakers and one of the extended cab doors speakers do not work.can not hear the warning chime. Sometimes when the truck has been driven for awhile the speakers in the driver's side starts to work. As of 07/11/14 the passenger side door speakers doesn't work unless the truck has been driven for awhile.. I've contacted GM several times on this issue and get the same response, they can not help me without paying them a fee.... I tell them what is happening and they don't care. …”

   NHTSA complaint #10610234, filed 2014-07, 60,000 miles

   “Time on radio stopped working also speakers and chimes for turn signal and keys in the ignition stopped working they work every once in awhile I noticed when the keys in the ignition are turned just right sometimes everything will work but most of the time it does not.”

   NHTSA complaint #10477959, filed 2012-09, 90,000 miles
3. 3
   Latches, locks and linkages

   Door lock actuators fail (auto-lock stops working)

   • 18 complaints (11%)
   • median 51,000 mi at 5.0 yrs old (17 state mileage)
   • filed 2008–2016

   Owners describe power door locks that stop locking or unlocking, sometimes on one door and sometimes on all four. The automatic locking that should engage when the truck is shifted into drive stops working, and the remote keyless entry may quit as well, forcing manual locking. Complaints say dealers identified the door lock actuator as the cause and quoted replacement at the owner's expense, with some owners reporting repeat failures on the same door. Mostly reported between about 20,000 and 70,000 miles, often on trucks several years old.

   1 related service bulletin

   What to check: Before buying, lock and unlock every door with the key fob, the interior switch and by shifting into drive, and listen for weak or slow actuators. Ask whether any actuators or the body control module have already been replaced.

   2 excerpts from owner complaints in NHTSA records

   “3 of 4 electric door locks do not work. Multiple message boards with people complaining about door lock actuators no longer working on this model/year. Safety concern as I have to climb into back seat to unlock doors when my children are in the back.”

   NHTSA complaint #10547915, filed 2013-10, 27,000 miles

   “All 4 lock actuators failed and with that, the body control module cannot properly work the security system. The power locks inside the vehicle work intermittently and seem to randomly unlock one of my doors. The automatic door lock when you put the car in gear does not work. This causes multiple safety risks. …”

   NHTSA complaint #10435048, filed 2011-11, 44,000 miles
4. 4
   Air bags

   Air bag system warning tied to door locks and wiring

   • 11 complaints (7%)
   • median 62,500 mi at 5.3 yrs old (10 state mileage)
   • 1 mention a crash, fire or injury
   • filed 2008–2016

   A separate group of complaints links door lock behavior to the air bag and seat belt systems: locks that cycle on their own while driving, gauges fluctuating at the same time, and seat belt buckles or pretensioners that fired or failed. In one report the dealer traced corroded front bumper sensors to a seat belt and air bag condition. Owners say dealers could not always reproduce the fault. Reported from low mileage up to about 110,000 miles, with several cases in the 60,000 to 70,000 mile range.

   2 related service bulletins

   What to check: Watch for doors locking or unlocking by themselves during a test drive and check that the seat belts latch and release properly; ask whether any seat belt or pretensioner repairs have been done.

   2 excerpts from owner complaints in NHTSA records

   “The contact owns a 2008 Chevrolet Silverado. While driving approximately 65 MPH, the doors unlocked and locked independently and the gauges on the instrument panel fluctuated rapidly without warning. The failures recurred numerous times. The vehicle was taken to an independent mechanic where it was not diagnosed or repaired. The manufacturer was made aware of the failures. The failure mileage was approximately 66,000.”

   NHTSA complaint #10854364, filed 2016-04, 66,000 miles

   “The contact owns a 2008 Chevrolet Silverado. The contact stated that while driving at approximately 60 MPH, all four locks on the vehicle locked and unlocked constantly. The vehicle stalled. The failures recurred several times. The vehicle was taken to an independent mechanic, but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 67,000. The VIN was not available.”

   NHTSA complaint #10681181, filed 2015-02, 67,000 miles

Buying note. Check the electrical side carefully on a 2008 Silverado — every door lock, gauge, speaker and warning light — and confirm that any outstanding air bag recall has been completed for the VIN, since those two areas account for most owner complaints. A pre-purchase inspection that includes the transmission cooler lines and a scan for stored body and air bag codes is worthwhile on a truck of this age.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.