- The problem
- The fuel tank fusible bushing element may have melted due to extremely high temperatures encountered when the tanks were exposed to direct sunlight rays during chassis storage.
- The fix
- The dealer will inspect and, if necessary, replace the fuel tank vent plug without charge to owner.
Vehicle safety record
1978 GMC P35 Problems, complaints & recalls
No owner complaints about the 1978 GMC P35 have been filed with NHTSA. It is covered by 3 recalls, the latest in September 1978 for the tank assembly.
NHTSA data checked
FFar more problems than a typical P35 year, for its age
- Complaints
- 0
- Recalls
- 3
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
1978 GMC P35 recalls 3
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
- The problem
- The involved vehicles do not have a brake fluid reservoir warning which states, "warning, clean filler cap before removing. Use only dot 3 fluid from a sealed container". This constitutes a non-compliance to federal motor vehicle safety standard no. 105, "Hydraulic brake systems".
- The fix
- The dealer will install the brake fluid reservoir warning plate without charge to owner.
- The problem
- The parking brake switch connector contains electrical wires that may be reversed. As a result, the lamp will be activated whenever the ignition is turned on, even though the parking brake is not engaged. This constitutes a non-compliance to federal motor vehicle safety standard no. 105, "Hydraulic brake systems". The standard requires that the indicator lamp be activated upon application of the parking brake.
- The fix
- Dealer will inspect and, if necessary, correct the parking brake switch wiring without charge to owner.
What owners say
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No complaints about the 1978 GMC P35 yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
GMC P35: every year compared
All P35 years1978 GMC P35 vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 1978 GMC P35 | 0 | 3 | F | |
| 1978 GMC C15 | 1 | 1 | A | Compare |
| 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 P35
Does the 1978 GMC P35 have any recalls?
Yes - NHTSA lists 3 recalls for the 1978 GMC P35: tank assembly (September 1978); labels (September 1978); indicator light (September 1978). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 1978 GMC P35 had?
None have been filed with NHTSA so far.
Is the 1978 GMC P35 a reliable vehicle?
Its Safety Index is 16 out of 100 (grade F: far more problems than a typical GMC P35 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 1978 GMC P35 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