Table 1 shows one common power train related problems of the 2008 GMC Sierra.
| Problem Category | Number of Problems |
|---|---|
| Power Train problems |
While driving check engine light, service stabilitrac and service traction control on information center, followed by a reduced power notification. This clears and occurs without warning rendering the mv near useless.
Transmission lines leaking around crimped part of line. Researching this issue online,many GMC/gm vehicles are having this issue. There should be an effort by gm to install better lines.