1999 GMC Blazer

Owner complaints

What owners report most

1. Engine and engine cooling1
2. Seats1

Latest complaints

• Apr 4, 2002MI
  Engine and engine cooling › Cooling system › Hoses/lines/piping/fittings
  The oil cooling lines have been leaking for quite a long time, as a routine the oil level IS checked often. After contacting a gm dealer's service dept they told me it IS a very common problem with this blazer and with the truck no longer under warranty to contact the delivering dealership. Besides…

  The oil cooling lines have been leaking for quite a long time, as a routine the oil level IS checked often. After contacting a gm dealer's service dept they told me it IS a very common problem with this blazer and with the truck no longer under warranty to contact the delivering dealership. Besides these hose assemblies are on back order I was told, which means it IS a common problem and it may be a matter of time before oil fires may erupt if the line completely fails. After contacting the delivering dealership they will be glad to replace the hoses for $375, in which I would replace myself, but no parts available.*ak

• Jun 28, 2001ILFire
  Seats › Front assembly › Power adjust

  The cause for fire may be due to faulty wiring or electrical short circuit under the seat. *Ak

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 10248444Vehicle Recalls
• 10246631Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
• 10232287This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
• 10190934Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.
• 10190933Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.
• 10190932Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility Outside Company later in this bulletin.
• 10190931Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility Outside Company later in this bulletin.
• 10082506This technical bulletin provides a procedure to reprogram the media disc player with the latest calibrations to correct a condition of the rear entertainment system not operating as intended in colder ambient temperature areas due to calibration concerns.
• 10032462Saab/hummer/gm: diagnostic tips/recommendations when power steering pump replacement IS necessary. Analysis of returned power steering (ps) pumps that had been replaced for noise, no power assist, no or low pressure and leaking conditions has indicated a high number of no trouble found results. All 1997-2010 vehicles and light trucks; 2010 and prior hummers H2/H3 and saab 9-7X vehicles.
• 100135724WD models with noise, vibration on dry pavement.
• 10007717Engine coolant leak at intake gasket. * mj
• 628512Subject regarding rear roof perforation (install new rear roof section) including 1995-1997 GMC blazer.*jg
• 627489Information regarding rear roof perforation.
• 617650Brief information on diagnosing easy entry seat no lock conditions to make sure the seat tracks are timed.
• 606091Some owners may comment about a slipping type condition at the front wheels while the vehicle IS in four wheel drive (4WD).
• 605958Some customers may comment that the cd changer will not release when depressing the eject button.

Every GMC Blazer model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.