- The problem
- Trans-Air Manufacturing Corp. (Trans-Air) is recalling certain model year 2006-2014 GM G3500 and G4500 vehicles modified with Trans-Air add-on compressor mount kits, part numbers 4012506-01, 4012506-02, 4013126-01, 4013126-02, 4013235-01, 4013235-02, 4012909, 4013125, 4013222 and 717173 installed by Trans-Air personnel. After installing a compressor, a power distribution terminal strip may not have been properly reconnected.
- The risk
- If the power distribution terminal strip has a poor connection or a loose connection, the strip may arc or overheat, increasing the risk of a vehicle fire.
- The fix
- Trans-Air will notify owners, and dealers will inspect the power distribution terminal strip connection, correcting it as necessary, free of charge. The recall began on May 29, 2015. Owners may contact Trans-Air customer service at 1-800-673-2446.
Vehicle safety record
2012 GM G4500 Problems, complaints & recalls
Owners have filed 1 complaint about the 2012 GM G4500 with NHTSA, most often about the brakes (1) and the engine & cooling (1). It is covered by 1 recall, the latest in April 2015 for the air conditioner. For comparison, the 2011 has 0 and the 2013 has 0.
NHTSA data checked
DMore problems than a typical G4500 year, for its age
#360 most complained-about 2012 vehicle
- Complaints
- 1
- Recalls
- 1
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Most common 2012 GM G4500 problems
Share of all 1 complaints. One complaint can name more than one area. Tap an area for its complaints and recalls.
2012 GM G4500 recalls 1
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
What owners say
Be the first G4500 owner to share.
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1 complaints about the 2012 GM G4500
Newest first, as filed with NHTSA by owners.
Three times while driving at 50-60 miles per hour vehicle had total engine shut down. This occurred after driving approximately 2 hours. Coasted to the side of the road turned key off and waited 5 minutes or so and engine restarted. The third times happened around 10 miles or 15 minutes later and took at least 20 minutes before restart. When attempting restart multiple times there were no alarm/warning/engine lights come on. This is the cab to a class c motorhome.
GM G4500: every year compared
All G4500 yearsQuestions about the 2012 GM G4500
Does the 2012 GM G4500 have any recalls?
Yes - NHTSA lists 1 recall for the 2012 GM G4500: air conditioner (April 2015). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
What are the most common problems with the 2012 GM G4500?
By the complaints owners filed with NHTSA, the most common problem areas are the brakes (1), engine & cooling (1), steering (1).
How many complaints has the 2012 GM G4500 had?
1 complaints have been filed with NHTSA, the first on July 3, 2025 and the latest on July 3, 2025. Of these, 0 describe a crash and 0 a fire, and together they report 0 injuries and 0 deaths.
Is the 2012 GM G4500 a reliable vehicle?
Its Safety Index is 39 out of 100 (grade D: more problems than a typical GM G4500 year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
What should I do if my 2012 GM G4500 has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data