14V208000
EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT
A failure of the hazard warning lights could reduce the trucks visibility, increasing the risk of a crash.
2009 MACK GU
5 safety recall campaigns, 1 defect investigation, 1 owner complaints filed with NHTSA.
The record
Recall campaigns5
Park it0stop driving until repaired
Investigations1
Owner complaints1
Complaints citing a crash0
Complaints citing a fire0
Complaints are reports from owners of this model year, not findings about any particular vehicle, and a model that sold in large numbers will collect more of them. They are counted here as filed; nothing is inferred from them.
Recall campaigns 5 of 5
14V078000
ELECTRICAL SYSTEM
Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.
12V519000
ELECTRICAL SYSTEM
If the control box loses ground, it may have localized overheating. This could lead to a vehicle fire.
11V292000
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
A SHORT CAN POTENTIALLY CAUSE A VEHICLE FIRE.
10V404000
SERVICE BRAKES, AIR
IF THE BRAKES DO NOT PERFORM AS THEY SHOULD, A VEHICLE CRASH COULD OCCUR.
What owners report most
- 1ENGINE
This page is about a model, not a car
Two 2009 MACK GUs can have entirely different histories, and a recall campaign usually covers a build-date window rather than a whole model year — which a VIN does not encode, so only the door-jamb label settles it. Scanning the VIN adds the decode, the crash tests, the fuel economy and the complaints matched to that exact engine, trim and assembly plant.