2003 GMC Envoy Engine cooling Problems
- Complaints
- 25about this part
- Share
- 6%of 394 total for the year
- Median mileage
- 34,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 25 complaints about the engine cooling of the 2003 GMC Envoy, 6% of the 394 complaints for this model year. Where a mileage was given, the median is 34,000 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Air conditioner intermitentlly blows warm air. This air conditioning failure has been reported several times to the two dealers I have my 2003 Gmc Envoy serviced: beck & masten and champion pontiac Gmc. The dealers said the problem was a bad switch that they replaced each time I complain of the air conditioning failure.”
NHTSA complaint #10052517, filed 2004-01, 2,600 miles“1) sequence of events - nothing happens when we try to start. -battery voltage ok, auto-headlights on, bright - instrument panel completely dead -2 hours later, instrument on the miles per hour instrument is going wild, back and forth finally sets at zero, now engine will start. Check engine light is on for the first time - radio looses preset station memory 2) it started about a week; we had problems starting the warm engine. …”
NHTSA complaint #10147917, filed 2006-01, 8,202 miles“2003 Gmc Envoy sle with 42,000 miles. Check 4 wdrive light came on then went back off. Dealer stated that the tccm had to be reprogrammed due to a bulletin. It cost me out of pocket no warranties cover this. Also the fan clutches went out but was replaced by extended warranties. I'm also told by dealer that the steering links are worn & should be replaced. This too is at my cost. I have only had this car 1 year. These happened with just a few weeks of each other.”
NHTSA complaint #10242492, filed 2008-09, 42,000 miles“One week ago I purchased a 2003 Envoy sle 4wd, it has 200 miles on it currently and noticed upon delivery that a molding around the drivers side door is crooked. And 2 days ago I noticed a large puddle of fresh oil under my vehicle, and my oil light went on this morning. I haven't even had this vehicle for one week and I have to take it in for repairs. This does not make me feel overly comfortable about my purchase.”
NHTSA complaint #10021282, filed 2003-06, 10 miles“I am the owner of a 2003 Gmc Envoy slt, 2wd, and I have had my vehicle into the dealership three times for a problem which I consider an extreme safety hazard. My vehicle has now failed for a 4th time and the dealer refuses to admit that they cannot fix the problem. My vehicle loses power as I am accelerating on to highways and I have almost been hit by trucks on two separate occasions pulling out on to a highway as I am unable to go over about 10 MPH and have to pull off the roadway. The vehicle was in for a third time for that same problem back in january. …”
NHTSA complaint #10142546, filed 2005-11, 23,450 milesRelated service bulletins
- 10251887Mar 14, 2024This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.
- 10251890Mar 13, 2024This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank…
- 10250775Feb 22, 2024This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large…
- 10249579Jan 12, 2024This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- 10242843Sep 1, 2023The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the…
- 10242262Aug 24, 2023This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and…
- 10236164Apr 24, 2023This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308…
- 10235802Apr 24, 2023This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234141Mar 23, 2023This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
- 10234110Mar 17, 2023This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.
Engine cooling: other model years
Other parts of the 2003 GMC Envoy
94 complaintsElectrical system
77 complaintsVisibility (wipers, defrost, mirrors)
40 complaintsAir bags
37 complaintsTransmission and drivetrain
37 complaintsBody and structure
33 complaintsBrakes
26 complaintsExterior lighting
26 complaintsSuspension
19 complaintsSeat belts
15 complaintsSteering
15 complaintsEngine
10 complaints
← All problems reported for the 2003 GMC Envoy
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology