Total Complaints
5 filings
GMC C4500 · model year
5 NHTSA complaints, and 2 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2006GMCC4500 carries 5 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2006 C4500 is power train:automatic transmission with 1 filings, followed by service brakes, hydraulic (1) and seats (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 2 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 2 investigation files overlapping the 2006 C4500. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
5 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| POWER TRAIN:AUTOMATIC TRANSMISSION | 1 |
| SERVICE BRAKES, HYDRAULIC | 1 |
| SEATS | 1 |
| VISIBILITY | 1 |
| ENGINE | 1 |
SUSPENSION
CERTAIN LINK ULTRARIDE REAR AIR SUSPENSION SYSTEMS, MODEL 8M000070, SOLD FOR INSTALLATION AS AFTERMARKET EQUIPMENT ON GM CHASSIS MODELS 4500 AND 5500, AMBULANCES AND SHUTTLE BUSES. THE AXLE SIDE LATERAL CONTROL BRACKET OF THE SUSPENSION HAS CRACKED IN SOME CASES.
EQUIPMENT ADAPTIVE/MOBILITY
CERTAIN INTERMOTIVE WHEELCHAIR LIFT INTERLOCK, P/NO. ILIS605-H3 ILIS ACTIVATION KIT (INTERLOCK OPTION FOR GATEWAY 401) SOLD FOR USE AS AFTERMARKET FOR 2005 - 2008 CHEVY 560 (C4500 AND C5500 KODIAK) 6.6L DIESEL VEHICLES WHICH A PROTECTION DIODE WAS USED. THE DIODE CAN BE EXPOSED TO VOLTAGE SPIKES GR
PULLING A LOADED TRAILER UP A STEEP GRADE ON A MAJOR HIGHWAY. SPEED WAS APPROX. 40MPH. DRIVER HEAR A "CLUNK" NOISE THEN THE LOW COOLANT LIGHT CAME ON AND THEN THE ENGINE TEMP STARTED TO RISE. PULLED OVER AND THERE WAS COOLANT LEAKING FROM THE FRONT OF THE TRUCK. UPON FURTHER INSPECTION THE BOTTOM RADIATOR HOSE HAD BEEN CUT FROM THE FAN THAT EXPLODED AND THE FAN ALSO TORE THE FAN SHROUD OPEN TOO. SUMMARY- FAN EXPLODED, WHICH RUINED THE FAN SHROUD AND THE LOWER RADIATOR HOSE. *TR
Mileage: 156,000
ONE SIDE OF SEAT BACK IS UNHINGED AND THE DRIVER'S BACK GETS SUDDENLY SHIFTED AROUND WITHOUT WARNING. 2) DEFROSTER AND HEATING VENTS DO NOT WORK 3) MIRRORS ARE BADLY CORRODED AND UNADJUSTABLE, IT IS OWNED BY PEAPOD BY STOP AND SHOP AND THEY COULDN'T CARE LESS ABOUT FIXING THIS, VERY DANGEROUS VEHICLE THE PARENT CORPORATION OF PEAPOD AND STOP AND SHOP GIANT HAS HUNDREDS OF MILLIONS OF DOLLARS IN CASH LAYING AROUND I MIGHT ADD; THIS HORROR SHOW OF A TRUCK IS LOCATED AT [XXX]; THE NUMBER ON THE BACK OF THE TRUCK IS 72 "SEVENTY TWO". INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).*TR
ONE SIDE OF SEAT BACK IS UNHINGED AND THE DRIVER'S BACK GETS SUDDENLY SHIFTED AROUND WITHOUT WARNING. 2) DEFROSTER AND HEATING VENTS DO NOT WORK 3) MIRRORS ARE BADLY CORRODED AND UNADJUSTABLE, IT IS OWNED BY PEAPOD BY STOP AND SHOP AND THEY COULDN'T CARE LESS ABOUT FIXING THIS, VERY DANGEROUS VEHICLE THE PARENT CORPORATION OF PEAPOD AND STOP AND SHOP GIANT HAS HUNDREDS OF MILLIONS OF DOLLARS IN CASH LAYING AROUND I MIGHT ADD; THIS HORROR SHOW OF A TRUCK IS LOCATED AT [XXX]; THE NUMBER ON THE BACK OF THE TRUCK IS 72 "SEVENTY TWO". INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).*TR
DT*: THE CONTACT STATED WHEN THE VEHICLE WAS TRAVELING 70 MPH ON CLEAR DRY ROAD CONDITIONS, TRAFFIC STOPPED ABRUPTLY, WHICH REQUIRED EMERGENCY BRAKING OF THE VEHICLE. THE BRAKES SHUDDERED VIOLENTLY. WHEN THE VEHICLE WAS TAKEN TO A SERVICE DEALER, THE PROBLEM WAS NOT IDENTIFIED, ALTHOUGH THE BRAKES WERE REBUILT. THE MANUFACTURER WAS NOT ALERTED.
Mileage: 1,140
DT*: THE CONTACT STATED WHILE TRAVELING NO PARTICULAR, THE TRANSMISSION DOWNSHIFTED INTO FIRST GEAR. THE VEHICLE WAS PULLED OVER AND THE DEALERSHIP SENT A TECHNICIAN TO THE VEHICLE TO DEPROGRAMMED THE CODES TO DRIVE THE VEHICLE TO THE DEALERSHIP. AN INTERNAL WIRE HARNESS, PINS CONNECTORS, AND SOLENOID WERE REPLACED, BUT THE PROBLEM PERSISTED.
Mileage: 2,200
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.