Table 1 shows two common electrical system related problems of the 2011 GMC Sierra. The number one most common problem is related to the electrical system (two problems). The second most common problem is related to the alternator/generator/regulator (one problem).
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems | |
| Alternator/generator/regulator problems |
Tl-the contact owns a 2011 GMC Sierra. The contact received a notification of NHTSA campaign number:14v827000 (electrical system). The contact stated the ignition lock actuator made it difficult to turn the key which made the ignition to get stuck. Read details...
The headlights dim then return to normal every time the break is applied. Interior lights dim and return to normal when hazard lights are activated. Dealer found the complaint to be valid. Battery tested and found to be good. Voltage test of alternator checked out normal. Read details...