- The problem
- The nut on the carrier support bolt assembly may break which would allow the entire wheel and tire assembly to separate from the vehicle.
- The fix
- Dealer will replace the tire and wheel carrier bolt assembly at no charge.
Vehicle safety record
1978 GMC C15 Problems, complaints & recalls
Owners have filed 1 complaint about the 1978 GMC C15 with NHTSA, most often about the transmission & drivetrain (1). It is covered by 1 recall, the latest in August 1978 for the carrier / rack.
NHTSA data checked
AFar fewer problems than a typical C15 year, for its age
#15 most complained-about 1978 vehicle
- Complaints
- 1
- Recalls
- 1
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Most common 1978 GMC C15 problems
Share of all 1 complaints. One complaint can name more than one area. Tap an area for its complaints and recalls.
1978 GMC C15 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 C15 owner to share.
Problems or none - your experience is exactly what the next buyer is looking for. Write it now
1 complaints about the 1978 GMC C15
Newest first, as filed with NHTSA by owners.
Transmission fails to shift properly while towing trailer, also sticks in overdrive.
GMC C15: every year compared
All C15 years1978 GMC C15 vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 1978 GMC C15 | 1 | 1 | A | |
| 1978 GMC C Series(light) | 1 | 0 | A | Compare |
| 1978 GMC C/K Pickup | 1 | 0 | A | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 1978 GMC C15
Does the 1978 GMC C15 have any recalls?
Yes - NHTSA lists 1 recall for the 1978 GMC C15: carrier / rack (August 1978). 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 1978 GMC C15?
By the complaints owners filed with NHTSA, the most common problem areas are the transmission & drivetrain (1).
How many complaints has the 1978 GMC C15 had?
1 complaints have been filed with NHTSA, the first on August 16, 1996 and the latest on August 16, 1996. Of these, 0 describe a crash and 0 a fire, and together they report 0 injuries and 0 deaths.
Is the 1978 GMC C15 a reliable vehicle?
Its Safety Index is 80 out of 100 (grade A: far fewer problems than a typical GMC C15 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.
Which GMC C15 years have the most complaints?
1995 (10), 1993 (7), 1994 (7). See every GMC C15 year compared.
What should I do if my 1978 GMC C15 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