Tl* the contact owns a 2008 Chevrolet uplander. The contact stated that the traction control and electronic stability warning indicators remained illuminated. The vehicle was taken to the dealer where it was diagnosed that the vehicle needed dielectric grease on the front driver and passenger wheels. The vehicle was remedied, but the failure recurred. In addition, the vehicle needed the battery…
2008 Chevrolet Uplander electrical problems
moderate 23 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
23
Recalls
0
Avg fix
$850
When does it fail?
Of the 23 electrical complaints filed for the 2008 Chevrolet Uplander, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Electrical accounts for 19% of all owner complaints filed against this vehicle, across 11 categories tracked.
No new NHTSA electrical complaint has been filed on this vehicle in over 10 years — the issue may be aging out of the active population.
The failure pattern owners describe
The 2008 Chevy Uplander suffers from interconnected electrical failures that leave owners stranded and frustrated. The charging system failure warning is the most frequent complaint: alternators fail and batteries stop holding charge, forcing owners to replace batteries three to five times in the first few years. Even after alternator replacement, the problem often recurs. One owner reported that at idle the battery gains amps, but while driving it loses them. Dealers can't consistently pinpoint the root cause.
Sliding door and lock failures trap occupants inside. Dashboard warnings falsely show a door is open when it's closed. Door motors fail and require replacement at $1,000-plus. In several cases, doors open while driving or close and then reopen on their own. One owner was locked inside for 45 minutes with no way out except flagging a stranger for help.
Warning lights for ABS, traction control, and tire pressure stay lit despite replacing the ABS pump five times in one case, plus wheel hubs, wiring harness, rotors, brake assemblies, and bearings. The root causes go undiagnosed. Alarms sound repeatedly at night without being triggered. At highway speeds, some vehicles suddenly stall with complete loss of power steering and brakes. In wet weather, driving through standing water causes total power loss and charging system alerts.
GM acknowledges at least one issue (door open light) as a known design flaw but offers no fix. No recalls have been issued despite widespread complaints.
Same Chevrolet Uplander electrical reports on nearby years: 2005 · 2006 · 2007
Failure modes owners describe
Alternator failure and charging system collapse
Alternator fails to charge battery; owners report repeated battery replacement (sometimes 3–5 times) because charge will not hold. Charging system failure warning appears; vehicle may stall mid-drive or refuse to restart. Some report battery works fine when idling but loses charge during driving. At least one owner reports dealer diagnosis but failure recurs after alternator replacement.
When: Typically 17 months to several years of ownership; one reported at 27,000 mi, others later.
Symptoms owners cite: Charging system failure warning light; Battery will not hold charge; Vehicle fails to start or stalls while driving; Repeated need for jump starts; Battery gains amps at idle but loses amps while driving
Repairs/costs cited: Alternator replacement cited; one owner notes engine must be dropped to access alternator, making repair extremely expensive. Dealer estimates over $1,000+. Some repairs unsuccessful even after alternator swap.
Recalls/TSBs owners mention: No official recall mentioned. GM specialist promised resolution but owner heard nothing after 8/19. GM executive stated no recall would be issued. One owner reports GM said this was a design flaw with no remedy.
Door lock and sliding door electrical failures
Sliding doors fail to lock/unlock, stick open, or close and reopen. Dash falsely indicates door is open when closed. Lock buttons do not respond. Doors lock owners inside vehicle. In one case, rear door fell off; in another, door opens while driving.
When: Varies; one incident after 3 weeks of ownership, others over time.
Symptoms owners cite: Doors will not unlock with key fob or interior switch; Dashboard incorrectly shows door open; Doors open on their own while driving; Doors will not close properly; Interior door lock button does not function; Owner locked inside vehicle for 45 minutes
Repairs/costs cited: Door modules replaced multiple times; body control module replacement recommended. One door motor replacement recommended at $1,000+. Contact cleaning charged $80. Dealer reports these are common failures with no adjustment possible without full motor replacement.
Recalls/TSBs owners mention: No recall. Dealer states does not set trouble code so no record kept. One owner reports GM authorized but refused to cover cost. Dealer advised cost is owner's responsibility.
Alarm and horn system malfunction
Alarm sounds repeatedly without being triggered, waking owner at night. Occurs 20 minutes apart with no external cause. Owner forced to pull horn fuse to silence it. Related to door lock/lighting issues per one complainant.
When: Timing not specified; multiple recurrences.
Symptoms owners cite: Alarm sounds at night without trigger or arm activation; Alarm repeats every 20 minutes; Horn sounds despite being disabled via fuse removal; Lights flash on and off on their own
Repairs/costs cited: Owner pulled horn fuse as temporary fix. No repairs completed; owner states cannot afford dealer repair cost.
Recalls/TSBs owners mention: GM apologized and offered to authorize repairs but stated cost is owner's responsibility.
Dashboard warning light malfunction (ABS, traction control, tire pressure)
ABS, traction control, and tire pressure warning lights illuminate and remain on. Multiple repeated part replacements and repairs have failed to clear codes or turn lights off. Root cause undiagnosed.
When: At 68,560 mi for one case; 146,000 mi for ABS pump repeated replacement case.
Symptoms owners cite: ABS warning light remains illuminated; Traction control warning light remains illuminated; Electronic stability warning light illuminated; Tire pressure light continually appears; Lights illuminate without warning while stationary or driving
Repairs/costs cited: Dielectric grease applied to front wheels; ABS pump replaced five times in one case, along with wheel hubs and wiring harness, with no resolution. Rotors replaced twice, brake assembly replaced twice, wheel bearings replaced once in another case.
Recalls/TSBs owners mention: No recall or manufacturer response documented.
Door open indicator light stuck/malfunction
Door open warning light remains illuminated even after doors are closed, blocking other instrument panel information. Light will not clear unless vehicle is turned off and restarted.
When: 23,100 miles in one case.
Symptoms owners cite: Door open warning light remains illuminated when door is actually closed; Message does not clear automatically; Parking brake message also illuminates; Light obscures other dashboard information
Repairs/costs cited: No repair attempted; dealer said it was normal. GM confirmed it is a known design flaw.
Recalls/TSBs owners mention: GM stated this was a known design flaw but no remedy available.
Stalling with loss of power steering and brakes
Vehicle suddenly stalls at highway speed; power steering and brakes fail simultaneously. In wet weather, driving through standing water triggers loss of all power and charging system failure alert. Cause undiagnosed in multiple cases.
When: One case at 63,000 mi; wet weather trigger reported in another.
Symptoms owners cite: Vehicle stalls while driving (at highway speeds); Power steering stops functioning; Brakes stop functioning; Charging system failure alert; Loss of power in wet weather when driving through standing water; Power returns after a few moments in wet weather cases
Repairs/costs cited: No repairs completed; one case not inspected. Dealer unable to diagnose wet-weather stalling despite vehicle brought in for evaluation.
Recalls/TSBs owners mention: Dealer unable to find anything wrong. No manufacturer involvement documented.
Onstar system malfunction (unsolicited activation)
Onstar emergency system activates and repeatedly directs owner to subscribe to service every 30 seconds, creating distraction while driving.
When: At 130,000 miles.
Symptoms owners cite: Onstar emergency system activates without user input; Solicitation message appears every 30 seconds; Distraction while driving
Repairs/costs cited: None applied.
Recalls/TSBs owners mention: Onstar stated owner must either subscribe or pay dealer to deactivate the system. Issue unresolved.
Starter failure with misdiagnosis cascade
Starter faulty; after replacement, failure recurs. Then battery and alternator are replaced in sequence; all three parts replaced but failure to start still recurs. Root cause never determined.
When: At 160,000 miles.
Symptoms owners cite: Battery warning indicator illuminates; Vehicle stalls and will not restart; Failure recurs after each repair
Repairs/costs cited: Starter, battery, and alternator all replaced; vehicle still not repaired/operational.
Recalls/TSBs owners mention: Manufacturer not made aware.
Synthesized from 23 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
Dash indicator shows side sliding door is open, when it is not. Bells ding, inside lights come on, doors become inoperative from inside vehicle. Has occurred approximately 50 times. We have had in shop somewhere between 10 and 15 times, both door modules have been replaced, and body control module now being replaced. Chevrolet states that it doesn't set a trouble code, so they have no record of…
In the last couple weeks I've noticed that my door locks are not unlocking when pressing the all door lock release button. I went to the store on saturday, november 16, 2013 and was locked inside the car for 45 minutes. There is only one key entry on the entire car, driver door. (my remote has not worked since I bought the car used in march 2012.) I had to flag a person down in the parking lot…
Tl* the contact owns a 2008 Chevrolet uplander. The contact stated that the onstar emergency system activated and directed him to contact onstar to subscribe to the services every 30 seconds. The contact stated that the solicitation was a distraction while driving. The onstar manufacturer was notified of the issue. Onstar stated that the resolution was for the contact to subscribe to the service…
Had electrical trouble with your 2008 Chevrolet Uplander?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2008 Chevrolet Uplander?
It's a documented issue but not catastrophic. 23 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Across the 21 complaints that reported odometer mileage, most electrical failures cluster between 41,000 and 88,664 miles, with the median around 63,000. A quarter of owners report trouble before 41,000; a quarter make it past 88,664. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2008/Chevrolet/Uplander.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.