Technical Service Bulletin 15114A — 2012 GMC SIERRA 1500
EQUIPMENT
Bulletin Details
| TSB ID | 15114A |
| Manufacturer | |
| Vehicle | 2012 GMC SIERRA 1500 |
| Component | EQUIPMENT |
| Communication Date |
Bulletin Summary
Special Coverage. On some vehicles equipped with a 6.6L Duramax Diesel engine (RPO LML, LGH) the malfunction indicator lamp (MIL) may illuminate due to a condition with the glow plugs. When diagnosed, replacement of one of the engines glow plugs may be required. No drivability issues are generally associated with this issue, but harder starting in cold ambient temperatures may be noted. Dealers are to replace the affected glow plug. The repairs will be made at no charge to the customer.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2012 GMC SIERRA 1500
07-08-42-006T
EXTERIOR LIGHTING
PIT5039E
ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING
19NA255
EQUIPMENT ADAPTIVE/MOBILITY
PIP4021D
POWER TRAIN
PIC-4935-E
ELECTRICAL SYSTEM
PIP5370
ENGINE AND ENGINE COOLING:ENGINE:DIESEL
PI1343A
EQUIPMENT
PI1343A
POWER TRAIN:AUTOMATIC TRANSMISSION
PIT5059B
UNKNOWN OR OTHER
PIP4864M
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM